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XAVIER LEROY
Xavier Leroy. Hello and welcome to my corner of the Web. I'm a senior computer scientist interested in all scientific aspects of computer programming. I'm a professor at Collège de France, where I hold the chair of software sciences . I'm also a member of the Cambium research team of Inria, a French public research institute in computerXAVIER LEROY
This note tries to answer the frequently asked question ``I'd like to do a Ph.D. at INRIA within your research group; how should I proceed?''. It is intended to complement, and not to replace, other information available on the INRIA web site.. INRIA and Ph.D. MECHANIZED SEMANTICS FOR THE CLIGHT SUBSET OF THE C LANGUAGE Journal of Automated Reasoning manuscript No. (will be inserted by the editor) Mechanized semantics for the Clight subset of the C language Sandrine Blazy · Xavier Leroy the date of receipt and acceptance should be inserted later ENGLISH PRONUNCIATION TEST English pronunciation test While most of you non-native speakers of English speak English quite well, there is always room for improvement (of course, the same could be said for every person for any subject, but that is another matter). TOMATOTOPIC ORGANIZATION IN THE SOPRANO FORMAL VERIFICATION OF OBJECT LAYOUT FOR C++ MULTIPLE Formal Verification of Object Layout for C++ Multiple Inheritance Tahina Ramananandro INRIA Paris-Rocquencourt Tahina.Ramananandro@inria.fr Gabriel Dos Reis AUDITIF - XAVIERLEROY.ORGTRANSLATE THIS PAGE Auditif Coinquant et pétaradant, l'S vint crisser le long du trottoir silencieux. Le trombone du soleil bémolisait midi. Les piétons, braillantes cornemuses, clamaient leurs numéros. FORMAL C SEMANTICS: COMPCERT AND THE C STANDARD Formal C semantics: CompCert and the C standard Robbert Krebbers 1, Xavier Leroy2, and Freek Wiedijk 1 ICIS, Radboud University Nijmegen, The Netherlands 2 Inria Paris-Rocquencourt, France Abstract. We discuss the di erence between a formal semantics of the C standard, and a formal semantics of an implementation of C that sat- COINDUCTIVE BIG-STEP OPERATIONAL SEMANTICS Coinductive big-step operational semantics Xavier Leroya,∗ Herv´e Grallb aINRIA Paris-Rocquencourt Domaine de Voluceau, B.P. 105, 78153 Le Chesnay, France bEcole des Mines de Nantes´ La Chantrerie, 4, rue Alfred Kastler, B.P. 20722, 44307 Nantes, France A FORMALLY VERIFIED COMPILER BACK-END Journal of Automated Reasoning manuscript No. (will be inserted by the editor) A formally verified compiler back-end Xavier Leroy Received: 21 July 2009 / Accepted: 22 October 2009XAVIER LEROY
Xavier Leroy. Hello and welcome to my corner of the Web. I'm a senior computer scientist interested in all scientific aspects of computer programming. I'm a professor at Collège de France, where I hold the chair of software sciences . I'm also a member of the Cambium research team of Inria, a French public research institute in computerXAVIER LEROY
This note tries to answer the frequently asked question ``I'd like to do a Ph.D. at INRIA within your research group; how should I proceed?''. It is intended to complement, and not to replace, other information available on the INRIA web site.. INRIA and Ph.D. MECHANIZED SEMANTICS FOR THE CLIGHT SUBSET OF THE C LANGUAGE Journal of Automated Reasoning manuscript No. (will be inserted by the editor) Mechanized semantics for the Clight subset of the C language Sandrine Blazy · Xavier Leroy the date of receipt and acceptance should be inserted later ENGLISH PRONUNCIATION TEST English pronunciation test While most of you non-native speakers of English speak English quite well, there is always room for improvement (of course, the same could be said for every person for any subject, but that is another matter). TOMATOTOPIC ORGANIZATION IN THE SOPRANO FORMAL VERIFICATION OF OBJECT LAYOUT FOR C++ MULTIPLE Formal Verification of Object Layout for C++ Multiple Inheritance Tahina Ramananandro INRIA Paris-Rocquencourt Tahina.Ramananandro@inria.fr Gabriel Dos Reis AUDITIF - XAVIERLEROY.ORGTRANSLATE THIS PAGE Auditif Coinquant et pétaradant, l'S vint crisser le long du trottoir silencieux. Le trombone du soleil bémolisait midi. Les piétons, braillantes cornemuses, clamaient leurs numéros. FORMAL C SEMANTICS: COMPCERT AND THE C STANDARD Formal C semantics: CompCert and the C standard Robbert Krebbers 1, Xavier Leroy2, and Freek Wiedijk 1 ICIS, Radboud University Nijmegen, The Netherlands 2 Inria Paris-Rocquencourt, France Abstract. We discuss the di erence between a formal semantics of the C standard, and a formal semantics of an implementation of C that sat- COINDUCTIVE BIG-STEP OPERATIONAL SEMANTICS Coinductive big-step operational semantics Xavier Leroya,∗ Herv´e Grallb aINRIA Paris-Rocquencourt Domaine de Voluceau, B.P. 105, 78153 Le Chesnay, France bEcole des Mines de Nantes´ La Chantrerie, 4, rue Alfred Kastler, B.P. 20722, 44307 Nantes, France A FORMALLY VERIFIED COMPILER BACK-END Journal of Automated Reasoning manuscript No. (will be inserted by the editor) A formally verified compiler back-end Xavier Leroy Received: 21 July 2009 / Accepted: 22 October 2009XAVIER LEROY
OCaml. I am the proud architect and main developer of the OCaml system, an implementation of the Caml dialect of ML that supports equally well functional, imperative and object-oriented programming, all brought together by an ML-style static typeXAVIER LEROY
Xavier Leroy. I'm interested in most aspects of computer programming, in particular in programming languages, tools, and systems to make programs safer, easier to write, and more efficient. Most of my work revolves around the following topics: Programming language design, formalization and implementation. Popular programming languages aremost
ANAGRAMMES - XAVIER LEROY - HOME PAGETRANSLATE THIS PAGE Anagrammes. Dans l'S à un rhuee d'effluenca un pety dans les stingvix nas, qui tavia un drang ouc miagre et un peaucha nigar d'un drocon au lieu ed nubar, se pisaduit avec un treau guervayo qu'il cacusait de le suboculer neovalotriment. Ayant ainsi nulripecher, il se ciréppite sur une cepal rilbe. Une huree plus drat, je le conterne à la FORMAL C SEMANTICS: COMPCERT AND THE C STANDARD Formal C semantics: CompCert and the C standard Robbert Krebbers 1, Xavier Leroy2, and Freek Wiedijk 1 ICIS, Radboud University Nijmegen, The Netherlands 2 Inria Paris-Rocquencourt, France Abstract. We discuss the di erence between a formal semantics of the C standard, and a formal semantics of an implementation of C that sat- FORMAL VERIFICATION OF A C COMPILER FRONT-END Formal Verification of a C Compiler Front-end Sandrine Blazy, Zaynah Dargaye, and Xavier Leroy INRIA Rocquencourt 78153 Le Chesnay, France {Sandrine.Blazy, Zaynah.Dargaye, Xavier.Leroy}@inria.frAbstract. THE FUNCTIONAL APPROACH TO PROGRAMMING AND PROVING: AN The functional approach to programming and proving: An introduction to Caml and Coq Xavier Leroy INRIA Paris-Rocquencourt DO178 ED12 workingmeeting, 2011-08-30
AN OVERVIEW OF TYPES IN COMPILATION An overview of Types in Compilation? Xavier Leroy INRIA Rocquencourt Domaine de Voluceau, 78153 Le Chesnay, France 1 Types in programminglanguages
FORMAL CERTIFICATION OF A COMPILER BACK-END Formal Certification of a Compiler Back-end or: Programming a Compiler with a Proof Assistant Xavier Leroy INRIA Rocquencourt Xavier.Leroy@inria.fr Abstract This paper reports on the development and formal certification POLYMORPHIC TYPE INFERENCE AND ASSIGNMENT type A, nor a value of type B, in contrast with regular datatypes such as A £ B or A list.Hence it seems there are no dangerous variables in type A ! B, even if A or B contain dangerous variables themselves. For instance, the function let make ref = function x ! ref x has type fi ! fi ref, and fi is not dangerous in it, so it is fully polymorphic. MIXIN MODULES IN A CALL-BY-VALUE SETTING Mixin modules in a call-by-value setting · 3 compilation scheme for CMSv.The target of this compositional translation is λB, a simple call-by-value λ-calculus with a non-standard let rec construct in thestyle of Boudol .
XAVIER LEROY
Xavier Leroy. Hello and welcome to my corner of the Web. I'm a senior computer scientist interested in all scientific aspects of computer programming. I'm a professor at Collège de France, where I hold the chair of software sciences . I'm also a member of the Cambium research team of Inria, a French public research institute in computerXAVIER LEROY
This note tries to answer the frequently asked question ``I'd like to do a Ph.D. at INRIA within your research group; how should I proceed?''. It is intended to complement, and not to replace, other information available on the INRIA web site.. INRIA and Ph.D. MECHANIZED SEMANTICS FOR THE CLIGHT SUBSET OF THE C LANGUAGE Journal of Automated Reasoning manuscript No. (will be inserted by the editor) Mechanized semantics for the Clight subset of the C language Sandrine Blazy · Xavier Leroy the date of receipt and acceptance should be inserted later ENGLISH PRONUNCIATION TEST English pronunciation test While most of you non-native speakers of English speak English quite well, there is always room for improvement (of course, the same could be said for every person for any subject, but that is another matter). TOMATOTOPIC ORGANIZATION IN THE SOPRANO FORMAL VERIFICATION OF OBJECT LAYOUT FOR C++ MULTIPLE Formal Verification of Object Layout for C++ Multiple Inheritance Tahina Ramananandro INRIA Paris-Rocquencourt Tahina.Ramananandro@inria.fr Gabriel Dos Reis AUDITIF - XAVIERLEROY.ORGTRANSLATE THIS PAGE Auditif Coinquant et pétaradant, l'S vint crisser le long du trottoir silencieux. Le trombone du soleil bémolisait midi. Les piétons, braillantes cornemuses, clamaient leurs numéros. FORMAL C SEMANTICS: COMPCERT AND THE C STANDARD Formal C semantics: CompCert and the C standard Robbert Krebbers 1, Xavier Leroy2, and Freek Wiedijk 1 ICIS, Radboud University Nijmegen, The Netherlands 2 Inria Paris-Rocquencourt, France Abstract. We discuss the di erence between a formal semantics of the C standard, and a formal semantics of an implementation of C that sat- COINDUCTIVE BIG-STEP OPERATIONAL SEMANTICS Coinductive big-step operational semantics Xavier Leroya,∗ Herv´e Grallb aINRIA Paris-Rocquencourt Domaine de Voluceau, B.P. 105, 78153 Le Chesnay, France bEcole des Mines de Nantes´ La Chantrerie, 4, rue Alfred Kastler, B.P. 20722, 44307 Nantes, France A FORMALLY VERIFIED COMPILER BACK-END Journal of Automated Reasoning manuscript No. (will be inserted by the editor) A formally verified compiler back-end Xavier Leroy Received: 21 July 2009 / Accepted: 22 October 2009XAVIER LEROY
Xavier Leroy. Hello and welcome to my corner of the Web. I'm a senior computer scientist interested in all scientific aspects of computer programming. I'm a professor at Collège de France, where I hold the chair of software sciences . I'm also a member of the Cambium research team of Inria, a French public research institute in computerXAVIER LEROY
This note tries to answer the frequently asked question ``I'd like to do a Ph.D. at INRIA within your research group; how should I proceed?''. It is intended to complement, and not to replace, other information available on the INRIA web site.. INRIA and Ph.D. MECHANIZED SEMANTICS FOR THE CLIGHT SUBSET OF THE C LANGUAGE Journal of Automated Reasoning manuscript No. (will be inserted by the editor) Mechanized semantics for the Clight subset of the C language Sandrine Blazy · Xavier Leroy the date of receipt and acceptance should be inserted later ENGLISH PRONUNCIATION TEST English pronunciation test While most of you non-native speakers of English speak English quite well, there is always room for improvement (of course, the same could be said for every person for any subject, but that is another matter). TOMATOTOPIC ORGANIZATION IN THE SOPRANO FORMAL VERIFICATION OF OBJECT LAYOUT FOR C++ MULTIPLE Formal Verification of Object Layout for C++ Multiple Inheritance Tahina Ramananandro INRIA Paris-Rocquencourt Tahina.Ramananandro@inria.fr Gabriel Dos Reis AUDITIF - XAVIERLEROY.ORGTRANSLATE THIS PAGE Auditif Coinquant et pétaradant, l'S vint crisser le long du trottoir silencieux. Le trombone du soleil bémolisait midi. Les piétons, braillantes cornemuses, clamaient leurs numéros. FORMAL C SEMANTICS: COMPCERT AND THE C STANDARD Formal C semantics: CompCert and the C standard Robbert Krebbers 1, Xavier Leroy2, and Freek Wiedijk 1 ICIS, Radboud University Nijmegen, The Netherlands 2 Inria Paris-Rocquencourt, France Abstract. We discuss the di erence between a formal semantics of the C standard, and a formal semantics of an implementation of C that sat- COINDUCTIVE BIG-STEP OPERATIONAL SEMANTICS Coinductive big-step operational semantics Xavier Leroya,∗ Herv´e Grallb aINRIA Paris-Rocquencourt Domaine de Voluceau, B.P. 105, 78153 Le Chesnay, France bEcole des Mines de Nantes´ La Chantrerie, 4, rue Alfred Kastler, B.P. 20722, 44307 Nantes, France A FORMALLY VERIFIED COMPILER BACK-END Journal of Automated Reasoning manuscript No. (will be inserted by the editor) A formally verified compiler back-end Xavier Leroy Received: 21 July 2009 / Accepted: 22 October 2009XAVIER LEROY
OCaml. I am the proud architect and main developer of the OCaml system, an implementation of the Caml dialect of ML that supports equally well functional, imperative and object-oriented programming, all brought together by an ML-style static typeXAVIER LEROY
Xavier Leroy. I'm interested in most aspects of computer programming, in particular in programming languages, tools, and systems to make programs safer, easier to write, and more efficient. Most of my work revolves around the following topics: Programming language design, formalization and implementation. Popular programming languages aremost
ANAGRAMMES - XAVIER LEROY - HOME PAGETRANSLATE THIS PAGE Anagrammes. Dans l'S à un rhuee d'effluenca un pety dans les stingvix nas, qui tavia un drang ouc miagre et un peaucha nigar d'un drocon au lieu ed nubar, se pisaduit avec un treau guervayo qu'il cacusait de le suboculer neovalotriment. Ayant ainsi nulripecher, il se ciréppite sur une cepal rilbe. Une huree plus drat, je le conterne à la FORMAL C SEMANTICS: COMPCERT AND THE C STANDARD Formal C semantics: CompCert and the C standard Robbert Krebbers 1, Xavier Leroy2, and Freek Wiedijk 1 ICIS, Radboud University Nijmegen, The Netherlands 2 Inria Paris-Rocquencourt, France Abstract. We discuss the di erence between a formal semantics of the C standard, and a formal semantics of an implementation of C that sat- FORMAL VERIFICATION OF A C COMPILER FRONT-END Formal Verification of a C Compiler Front-end Sandrine Blazy, Zaynah Dargaye, and Xavier Leroy INRIA Rocquencourt 78153 Le Chesnay, France {Sandrine.Blazy, Zaynah.Dargaye, Xavier.Leroy}@inria.frAbstract. THE FUNCTIONAL APPROACH TO PROGRAMMING AND PROVING: AN The functional approach to programming and proving: An introduction to Caml and Coq Xavier Leroy INRIA Paris-Rocquencourt DO178 ED12 workingmeeting, 2011-08-30
AN OVERVIEW OF TYPES IN COMPILATION An overview of Types in Compilation? Xavier Leroy INRIA Rocquencourt Domaine de Voluceau, 78153 Le Chesnay, France 1 Types in programminglanguages
FORMAL CERTIFICATION OF A COMPILER BACK-END Formal Certification of a Compiler Back-end or: Programming a Compiler with a Proof Assistant Xavier Leroy INRIA Rocquencourt Xavier.Leroy@inria.fr Abstract This paper reports on the development and formal certification POLYMORPHIC TYPE INFERENCE AND ASSIGNMENT type A, nor a value of type B, in contrast with regular datatypes such as A £ B or A list.Hence it seems there are no dangerous variables in type A ! B, even if A or B contain dangerous variables themselves. For instance, the function let make ref = function x ! ref x has type fi ! fi ref, and fi is not dangerous in it, so it is fully polymorphic. MIXIN MODULES IN A CALL-BY-VALUE SETTING Mixin modules in a call-by-value setting · 3 compilation scheme for CMSv.The target of this compositional translation is λB, a simple call-by-value λ-calculus with a non-standard let rec construct in thestyle of Boudol .
XAVIER LEROY
Xavier Leroy. Hello and welcome to my corner of the Web. I'm a senior computer scientist interested in all scientific aspects of computer programming. I'm a professor at Collège de France, where I hold the chair of software sciences . I'm also a member of the Cambium research team of Inria, a French public research institute in computerXAVIER LEROY
This note tries to answer the frequently asked question ``I'd like to do a Ph.D. at INRIA within your research group; how should I proceed?''. It is intended to complement, and not to replace, other information available on the INRIA web site.. INRIA and Ph.D. MECHANIZED SEMANTICS FOR THE CLIGHT SUBSET OF THE C LANGUAGE Journal of Automated Reasoning manuscript No. (will be inserted by the editor) Mechanized semantics for the Clight subset of the C language Sandrine Blazy · Xavier Leroy the date of receipt and acceptance should be inserted later ENGLISH PRONUNCIATION TEST English pronunciation test While most of you non-native speakers of English speak English quite well, there is always room for improvement (of course, the same could be said for every person for any subject, but that is another matter). TOMATOTOPIC ORGANIZATION IN THE SOPRANO FORMAL VERIFICATION OF OBJECT LAYOUT FOR C++ MULTIPLE Formal Verification of Object Layout for C++ Multiple Inheritance Tahina Ramananandro INRIA Paris-Rocquencourt Tahina.Ramananandro@inria.fr Gabriel Dos Reis AUDITIF - XAVIERLEROY.ORGTRANSLATE THIS PAGE Auditif Coinquant et pétaradant, l'S vint crisser le long du trottoir silencieux. Le trombone du soleil bémolisait midi. Les piétons, braillantes cornemuses, clamaient leurs numéros. FORMAL C SEMANTICS: COMPCERT AND THE C STANDARD Formal C semantics: CompCert and the C standard Robbert Krebbers 1, Xavier Leroy2, and Freek Wiedijk 1 ICIS, Radboud University Nijmegen, The Netherlands 2 Inria Paris-Rocquencourt, France Abstract. We discuss the di erence between a formal semantics of the C standard, and a formal semantics of an implementation of C that sat- COINDUCTIVE BIG-STEP OPERATIONAL SEMANTICS Coinductive big-step operational semantics Xavier Leroya,∗ Herv´e Grallb aINRIA Paris-Rocquencourt Domaine de Voluceau, B.P. 105, 78153 Le Chesnay, France bEcole des Mines de Nantes´ La Chantrerie, 4, rue Alfred Kastler, B.P. 20722, 44307 Nantes, France A FORMALLY VERIFIED COMPILER BACK-END Journal of Automated Reasoning manuscript No. (will be inserted by the editor) A formally verified compiler back-end Xavier Leroy Received: 21 July 2009 / Accepted: 22 October 2009XAVIER LEROY
Xavier Leroy. Hello and welcome to my corner of the Web. I'm a senior computer scientist interested in all scientific aspects of computer programming. I'm a professor at Collège de France, where I hold the chair of software sciences . I'm also a member of the Cambium research team of Inria, a French public research institute in computerXAVIER LEROY
This note tries to answer the frequently asked question ``I'd like to do a Ph.D. at INRIA within your research group; how should I proceed?''. It is intended to complement, and not to replace, other information available on the INRIA web site.. INRIA and Ph.D. MECHANIZED SEMANTICS FOR THE CLIGHT SUBSET OF THE C LANGUAGE Journal of Automated Reasoning manuscript No. (will be inserted by the editor) Mechanized semantics for the Clight subset of the C language Sandrine Blazy · Xavier Leroy the date of receipt and acceptance should be inserted later ENGLISH PRONUNCIATION TEST English pronunciation test While most of you non-native speakers of English speak English quite well, there is always room for improvement (of course, the same could be said for every person for any subject, but that is another matter). TOMATOTOPIC ORGANIZATION IN THE SOPRANO FORMAL VERIFICATION OF OBJECT LAYOUT FOR C++ MULTIPLE Formal Verification of Object Layout for C++ Multiple Inheritance Tahina Ramananandro INRIA Paris-Rocquencourt Tahina.Ramananandro@inria.fr Gabriel Dos Reis AUDITIF - XAVIERLEROY.ORGTRANSLATE THIS PAGE Auditif Coinquant et pétaradant, l'S vint crisser le long du trottoir silencieux. Le trombone du soleil bémolisait midi. Les piétons, braillantes cornemuses, clamaient leurs numéros. FORMAL C SEMANTICS: COMPCERT AND THE C STANDARD Formal C semantics: CompCert and the C standard Robbert Krebbers 1, Xavier Leroy2, and Freek Wiedijk 1 ICIS, Radboud University Nijmegen, The Netherlands 2 Inria Paris-Rocquencourt, France Abstract. We discuss the di erence between a formal semantics of the C standard, and a formal semantics of an implementation of C that sat- COINDUCTIVE BIG-STEP OPERATIONAL SEMANTICS Coinductive big-step operational semantics Xavier Leroya,∗ Herv´e Grallb aINRIA Paris-Rocquencourt Domaine de Voluceau, B.P. 105, 78153 Le Chesnay, France bEcole des Mines de Nantes´ La Chantrerie, 4, rue Alfred Kastler, B.P. 20722, 44307 Nantes, France A FORMALLY VERIFIED COMPILER BACK-END Journal of Automated Reasoning manuscript No. (will be inserted by the editor) A formally verified compiler back-end Xavier Leroy Received: 21 July 2009 / Accepted: 22 October 2009XAVIER LEROY
OCaml. I am the proud architect and main developer of the OCaml system, an implementation of the Caml dialect of ML that supports equally well functional, imperative and object-oriented programming, all brought together by an ML-style static typeXAVIER LEROY
Xavier Leroy. I'm interested in most aspects of computer programming, in particular in programming languages, tools, and systems to make programs safer, easier to write, and more efficient. Most of my work revolves around the following topics: Programming language design, formalization and implementation. Popular programming languages aremost
ANAGRAMMES - XAVIER LEROY - HOME PAGETRANSLATE THIS PAGE Anagrammes. Dans l'S à un rhuee d'effluenca un pety dans les stingvix nas, qui tavia un drang ouc miagre et un peaucha nigar d'un drocon au lieu ed nubar, se pisaduit avec un treau guervayo qu'il cacusait de le suboculer neovalotriment. Ayant ainsi nulripecher, il se ciréppite sur une cepal rilbe. Une huree plus drat, je le conterne à la FORMAL C SEMANTICS: COMPCERT AND THE C STANDARD Formal C semantics: CompCert and the C standard Robbert Krebbers 1, Xavier Leroy2, and Freek Wiedijk 1 ICIS, Radboud University Nijmegen, The Netherlands 2 Inria Paris-Rocquencourt, France Abstract. We discuss the di erence between a formal semantics of the C standard, and a formal semantics of an implementation of C that sat- FORMAL VERIFICATION OF A C COMPILER FRONT-END Formal Verification of a C Compiler Front-end Sandrine Blazy, Zaynah Dargaye, and Xavier Leroy INRIA Rocquencourt 78153 Le Chesnay, France {Sandrine.Blazy, Zaynah.Dargaye, Xavier.Leroy}@inria.frAbstract. THE FUNCTIONAL APPROACH TO PROGRAMMING AND PROVING: AN The functional approach to programming and proving: An introduction to Caml and Coq Xavier Leroy INRIA Paris-Rocquencourt DO178 ED12 workingmeeting, 2011-08-30
AN OVERVIEW OF TYPES IN COMPILATION An overview of Types in Compilation? Xavier Leroy INRIA Rocquencourt Domaine de Voluceau, 78153 Le Chesnay, France 1 Types in programminglanguages
POLYMORPHIC TYPE INFERENCE AND ASSIGNMENT type A, nor a value of type B, in contrast with regular datatypes such as A £ B or A list.Hence it seems there are no dangerous variables in type A ! B, even if A or B contain dangerous variables themselves. For instance, the function let make ref = function x ! ref x has type fi ! fi ref, and fi is not dangerous in it, so it is fully polymorphic. MIXIN MODULES IN A CALL-BY-VALUE SETTING Mixin modules in a call-by-value setting · 3 compilation scheme for CMSv.The target of this compositional translation is λB, a simple call-by-value λ-calculus with a non-standard let rec construct in thestyle of Boudol .
BYTECODE VERIFICATION ON JAVA SMART CARDS Bytecode verification on Java smart cards Xavier Leroy ⁄y Draft of an article to appear in Software Practice & Experience, 2002 Abstract This article presents a novel approach to the problem of bytecode verification for Java CardXAVIER LEROY
Xavier Leroy. Hello and welcome to my corner of the Web. I'm a senior computer scientist interested in all scientific aspects of computer programming. I'm a professor at Collège de France, where I hold the chair of software sciences . I'm also a member of the Cambium research team of Inria, a French public research institute in computerXAVIER LEROY
This note tries to answer the frequently asked question ``I'd like to do a Ph.D. at INRIA within your research group; how should I proceed?''. It is intended to complement, and not to replace, other information available on the INRIA web site.. INRIA and Ph.D. MECHANIZED SEMANTICS FOR THE CLIGHT SUBSET OF THE C LANGUAGE Journal of Automated Reasoning manuscript No. (will be inserted by the editor) Mechanized semantics for the Clight subset of the C language Sandrine Blazy · Xavier Leroy the date of receipt and acceptance should be inserted later ENGLISH PRONUNCIATION TEST English pronunciation test While most of you non-native speakers of English speak English quite well, there is always room for improvement (of course, the same could be said for every person for any subject, but that is another matter). FUNCTIONAL PROGRAMMING LANGUAGES Functional programming languages Part IV: monadic transformations, monadic programming Xavier Leroy INRIA Paris-Rocquencourt MPRI 2-4, 2016{2017 X. Leroy (INRIA) Functional programming languages MPRI 2-4,2016{2017 1 / 81
FORMAL VERIFICATION OF OBJECT LAYOUT FOR C++ MULTIPLE Formal Verification of Object Layout for C++ Multiple Inheritance Tahina Ramananandro INRIA Paris-Rocquencourt Tahina.Ramananandro@inria.fr Gabriel Dos Reis FORMAL VERIFICATION OF A C COMPILER FRONT-END Formal Verification of a C Compiler Front-end Sandrine Blazy, Zaynah Dargaye, and Xavier Leroy INRIA Rocquencourt 78153 Le Chesnay, France {Sandrine.Blazy, Zaynah.Dargaye, Xavier.Leroy}@inria.frAbstract. THE FUNCTIONAL APPROACH TO PROGRAMMING AND PROVING: AN The functional approach to programming and proving: An introduction to Caml and Coq Xavier Leroy INRIA Paris-Rocquencourt DO178 ED12 workingmeeting, 2011-08-30
A FORMALLY VERIFIED COMPILER BACK-END Journal of Automated Reasoning manuscript No. (will be inserted by the editor) A formally verified compiler back-end Xavier Leroy Received: 21 July 2009 / Accepted: 22 October 2009 A LIST-MACHINE BENCHMARK FOR MECHANIZED METATHEORY 4 The symbols vi are metavariables that range over variables; the variables themselves vi are enumerated by the natural numbers. In this section of the document when we write r we suggest that vis not in the domain of r; when doing proofs it may be necesary to formalizethis notion.
XAVIER LEROY
Xavier Leroy. Hello and welcome to my corner of the Web. I'm a senior computer scientist interested in all scientific aspects of computer programming. I'm a professor at Collège de France, where I hold the chair of software sciences . I'm also a member of the Cambium research team of Inria, a French public research institute in computerXAVIER LEROY
This note tries to answer the frequently asked question ``I'd like to do a Ph.D. at INRIA within your research group; how should I proceed?''. It is intended to complement, and not to replace, other information available on the INRIA web site.. INRIA and Ph.D. MECHANIZED SEMANTICS FOR THE CLIGHT SUBSET OF THE C LANGUAGE Journal of Automated Reasoning manuscript No. (will be inserted by the editor) Mechanized semantics for the Clight subset of the C language Sandrine Blazy · Xavier Leroy the date of receipt and acceptance should be inserted later ENGLISH PRONUNCIATION TEST English pronunciation test While most of you non-native speakers of English speak English quite well, there is always room for improvement (of course, the same could be said for every person for any subject, but that is another matter). FUNCTIONAL PROGRAMMING LANGUAGES Functional programming languages Part IV: monadic transformations, monadic programming Xavier Leroy INRIA Paris-Rocquencourt MPRI 2-4, 2016{2017 X. Leroy (INRIA) Functional programming languages MPRI 2-4,2016{2017 1 / 81
FORMAL VERIFICATION OF OBJECT LAYOUT FOR C++ MULTIPLE Formal Verification of Object Layout for C++ Multiple Inheritance Tahina Ramananandro INRIA Paris-Rocquencourt Tahina.Ramananandro@inria.fr Gabriel Dos Reis FORMAL VERIFICATION OF A C COMPILER FRONT-END Formal Verification of a C Compiler Front-end Sandrine Blazy, Zaynah Dargaye, and Xavier Leroy INRIA Rocquencourt 78153 Le Chesnay, France {Sandrine.Blazy, Zaynah.Dargaye, Xavier.Leroy}@inria.frAbstract. THE FUNCTIONAL APPROACH TO PROGRAMMING AND PROVING: AN The functional approach to programming and proving: An introduction to Caml and Coq Xavier Leroy INRIA Paris-Rocquencourt DO178 ED12 workingmeeting, 2011-08-30
A FORMALLY VERIFIED COMPILER BACK-END Journal of Automated Reasoning manuscript No. (will be inserted by the editor) A formally verified compiler back-end Xavier Leroy Received: 21 July 2009 / Accepted: 22 October 2009 A LIST-MACHINE BENCHMARK FOR MECHANIZED METATHEORY 4 The symbols vi are metavariables that range over variables; the variables themselves vi are enumerated by the natural numbers. In this section of the document when we write r we suggest that vis not in the domain of r; when doing proofs it may be necesary to formalizethis notion.
XAVIER LEROY
OCaml. I am the proud architect and main developer of the OCaml system, an implementation of the Caml dialect of ML that supports equally well functional, imperative and object-oriented programming, all brought together by an ML-style static type ENGLISH PRONUNCIATION TEST English pronunciation test While most of you non-native speakers of English speak English quite well, there is always room for improvement (of course, the same could be said for every person for any subject, but that is another matter). ANAGRAMMES - XAVIER LEROY - HOME PAGETRANSLATE THIS PAGE Anagrammes. Dans l'S à un rhuee d'effluenca un pety dans les stingvix nas, qui tavia un drang ouc miagre et un peaucha nigar d'un drocon au lieu ed nubar, se pisaduit avec un treau guervayo qu'il cacusait de le suboculer neovalotriment. Ayant ainsi nulripecher, il se ciréppite sur une cepal rilbe. Une huree plus drat, je le conterne à la A SYNTACTIC THEORY OF TYPE GENERATIVITY AND SHARING A syntactic theory of type generativity and sharing 5 signatures. Functor signatures 8N1:(§1;8N2:§2) are composed of two signatures and two sets of universally quantifled names: the signature §1 describes the ex- pected shape for the argument, the signature §2 describes the result structure, N2 is the set of stamps that must be generated afresh at each application, and N1 is COINDUCTIVE BIG-STEP OPERATIONAL SEMANTICS The relation a ⇒co b (read: “a coevaluates to b”) is therefore the greatest fixpoint of the standard evaluation rules. It holds if and only if a ⇒co b is the conclusion of a finite or infinite derivation tree built from these rules. Naively, we could expect that ⇒co is the union of ⇒ and ⇒∞.This intuition is supported by the following properties: APPLICATIVE FUNCTORS AND FULLY TRANSPARENT HIGHER-ORDER Applicative functors and fully transparent higher-order modules Xavier Leroy INRIA B.P. 105, Rocquencourt, 78153 Le Chesnay, France. Xavier.Leroy@inria.fr A LIST-MACHINE BENCHMARK FOR MECHANIZED METATHEORY 4 The symbols vi are metavariables that range over variables; the variables themselves vi are enumerated by the natural numbers. In this section of the document when we write r we suggest that vis not in the domain of r; when doing proofs it may be necesary to formalizethis notion.
VALIDATING REGISTER ALLOCATION AND SPILLING Validating Register Allocation and Spilling Silvain Rideau1 and Xavier Leroy2 1 Ecole Normale Sup erieure, 45 rue d’Ulm, 75005 Paris, France silvain.rideau@ens.fr MECHANIZED VERIFICATION OF CPS TRANSFORMATIONS Mechanized Verification of CPS Transformations Zaynah Dargaye and Xavier Leroy INRIA Paris-Rocquencourt B.P. 105, 78153 Le Chesnay, France Zaynah.Dargaye@inria.fr, Xavier.Leroy@inria.fr LANGUAGE-BASED SECURITY FOR MOBILE CODE WITH APPLICATIONS Language-based security for mobile code with applications to smart cards Xavier Leroy INRIA Rocquencourt & (formerly) Trusted Logic S.A.1
XAVIER LEROY
Xavier Leroy. Hello and welcome to my corner of the Web. I'm a senior computer scientist interested in all scientific aspects of computer programming. I'm a professor at Collège de France, where I hold the chair of software sciences . I'm also a member of the Cambium research team of Inria, a French public research institute in computerXAVIER LEROY
This note tries to answer the frequently asked question ``I'd like to do a Ph.D. at INRIA within your research group; how should I proceed?''. It is intended to complement, and not to replace, other information available on the INRIA web site.. INRIA and Ph.D. MECHANIZED SEMANTICS FOR THE CLIGHT SUBSET OF THE C LANGUAGE Journal of Automated Reasoning manuscript No. (will be inserted by the editor) Mechanized semantics for the Clight subset of the C language Sandrine Blazy · Xavier Leroy the date of receipt and acceptance should be inserted later ENGLISH PRONUNCIATION TEST English pronunciation test While most of you non-native speakers of English speak English quite well, there is always room for improvement (of course, the same could be said for every person for any subject, but that is another matter). FUNCTIONAL PROGRAMMING LANGUAGES Functional programming languages Part IV: monadic transformations, monadic programming Xavier Leroy INRIA Paris-Rocquencourt MPRI 2-4, 2016{2017 X. Leroy (INRIA) Functional programming languages MPRI 2-4,2016{2017 1 / 81
FORMAL VERIFICATION OF OBJECT LAYOUT FOR C++ MULTIPLE Formal Verification of Object Layout for C++ Multiple Inheritance Tahina Ramananandro INRIA Paris-Rocquencourt Tahina.Ramananandro@inria.fr Gabriel Dos Reis FORMAL VERIFICATION OF A C COMPILER FRONT-END Formal Verification of a C Compiler Front-end Sandrine Blazy, Zaynah Dargaye, and Xavier Leroy INRIA Rocquencourt 78153 Le Chesnay, France {Sandrine.Blazy, Zaynah.Dargaye, Xavier.Leroy}@inria.frAbstract. THE FUNCTIONAL APPROACH TO PROGRAMMING AND PROVING: AN The functional approach to programming and proving: An introduction to Caml and Coq Xavier Leroy INRIA Paris-Rocquencourt DO178 ED12 workingmeeting, 2011-08-30
A FORMALLY VERIFIED COMPILER BACK-END Journal of Automated Reasoning manuscript No. (will be inserted by the editor) A formally verified compiler back-end Xavier Leroy Received: 21 July 2009 / Accepted: 22 October 2009 A LIST-MACHINE BENCHMARK FOR MECHANIZED METATHEORY 4 The symbols vi are metavariables that range over variables; the variables themselves vi are enumerated by the natural numbers. In this section of the document when we write r we suggest that vis not in the domain of r; when doing proofs it may be necesary to formalizethis notion.
XAVIER LEROY
Xavier Leroy. Hello and welcome to my corner of the Web. I'm a senior computer scientist interested in all scientific aspects of computer programming. I'm a professor at Collège de France, where I hold the chair of software sciences . I'm also a member of the Cambium research team of Inria, a French public research institute in computerXAVIER LEROY
This note tries to answer the frequently asked question ``I'd like to do a Ph.D. at INRIA within your research group; how should I proceed?''. It is intended to complement, and not to replace, other information available on the INRIA web site.. INRIA and Ph.D. MECHANIZED SEMANTICS FOR THE CLIGHT SUBSET OF THE C LANGUAGE Journal of Automated Reasoning manuscript No. (will be inserted by the editor) Mechanized semantics for the Clight subset of the C language Sandrine Blazy · Xavier Leroy the date of receipt and acceptance should be inserted later ENGLISH PRONUNCIATION TEST English pronunciation test While most of you non-native speakers of English speak English quite well, there is always room for improvement (of course, the same could be said for every person for any subject, but that is another matter). FUNCTIONAL PROGRAMMING LANGUAGES Functional programming languages Part IV: monadic transformations, monadic programming Xavier Leroy INRIA Paris-Rocquencourt MPRI 2-4, 2016{2017 X. Leroy (INRIA) Functional programming languages MPRI 2-4,2016{2017 1 / 81
FORMAL VERIFICATION OF OBJECT LAYOUT FOR C++ MULTIPLE Formal Verification of Object Layout for C++ Multiple Inheritance Tahina Ramananandro INRIA Paris-Rocquencourt Tahina.Ramananandro@inria.fr Gabriel Dos Reis FORMAL VERIFICATION OF A C COMPILER FRONT-END Formal Verification of a C Compiler Front-end Sandrine Blazy, Zaynah Dargaye, and Xavier Leroy INRIA Rocquencourt 78153 Le Chesnay, France {Sandrine.Blazy, Zaynah.Dargaye, Xavier.Leroy}@inria.frAbstract. THE FUNCTIONAL APPROACH TO PROGRAMMING AND PROVING: AN The functional approach to programming and proving: An introduction to Caml and Coq Xavier Leroy INRIA Paris-Rocquencourt DO178 ED12 workingmeeting, 2011-08-30
A FORMALLY VERIFIED COMPILER BACK-END Journal of Automated Reasoning manuscript No. (will be inserted by the editor) A formally verified compiler back-end Xavier Leroy Received: 21 July 2009 / Accepted: 22 October 2009 A LIST-MACHINE BENCHMARK FOR MECHANIZED METATHEORY 4 The symbols vi are metavariables that range over variables; the variables themselves vi are enumerated by the natural numbers. In this section of the document when we write r we suggest that vis not in the domain of r; when doing proofs it may be necesary to formalizethis notion.
XAVIER LEROY
OCaml. I am the proud architect and main developer of the OCaml system, an implementation of the Caml dialect of ML that supports equally well functional, imperative and object-oriented programming, all brought together by an ML-style static type ENGLISH PRONUNCIATION TEST English pronunciation test While most of you non-native speakers of English speak English quite well, there is always room for improvement (of course, the same could be said for every person for any subject, but that is another matter). ANAGRAMMES - XAVIER LEROY - HOME PAGETRANSLATE THIS PAGE Anagrammes. Dans l'S à un rhuee d'effluenca un pety dans les stingvix nas, qui tavia un drang ouc miagre et un peaucha nigar d'un drocon au lieu ed nubar, se pisaduit avec un treau guervayo qu'il cacusait de le suboculer neovalotriment. Ayant ainsi nulripecher, il se ciréppite sur une cepal rilbe. Une huree plus drat, je le conterne à la A SYNTACTIC THEORY OF TYPE GENERATIVITY AND SHARING A syntactic theory of type generativity and sharing 5 signatures. Functor signatures 8N1:(§1;8N2:§2) are composed of two signatures and two sets of universally quantifled names: the signature §1 describes the ex- pected shape for the argument, the signature §2 describes the result structure, N2 is the set of stamps that must be generated afresh at each application, and N1 is COINDUCTIVE BIG-STEP OPERATIONAL SEMANTICS The relation a ⇒co b (read: “a coevaluates to b”) is therefore the greatest fixpoint of the standard evaluation rules. It holds if and only if a ⇒co b is the conclusion of a finite or infinite derivation tree built from these rules. Naively, we could expect that ⇒co is the union of ⇒ and ⇒∞.This intuition is supported by the following properties: APPLICATIVE FUNCTORS AND FULLY TRANSPARENT HIGHER-ORDER Applicative functors and fully transparent higher-order modules Xavier Leroy INRIA B.P. 105, Rocquencourt, 78153 Le Chesnay, France. Xavier.Leroy@inria.fr A LIST-MACHINE BENCHMARK FOR MECHANIZED METATHEORY 4 The symbols vi are metavariables that range over variables; the variables themselves vi are enumerated by the natural numbers. In this section of the document when we write r we suggest that vis not in the domain of r; when doing proofs it may be necesary to formalizethis notion.
VALIDATING REGISTER ALLOCATION AND SPILLING Validating Register Allocation and Spilling Silvain Rideau1 and Xavier Leroy2 1 Ecole Normale Sup erieure, 45 rue d’Ulm, 75005 Paris, France silvain.rideau@ens.fr MECHANIZED VERIFICATION OF CPS TRANSFORMATIONS Mechanized Verification of CPS Transformations Zaynah Dargaye and Xavier Leroy INRIA Paris-Rocquencourt B.P. 105, 78153 Le Chesnay, France Zaynah.Dargaye@inria.fr, Xavier.Leroy@inria.fr LANGUAGE-BASED SECURITY FOR MOBILE CODE WITH APPLICATIONS Language-based security for mobile code with applications to smart cards Xavier Leroy INRIA Rocquencourt & (formerly) Trusted Logic S.A.1
XAVIER LEROY
Hello and welcome to my corner of the Web. I'm a senior computer scientist interested in all scientific aspects of computer programming. I'm a professor at Collège de France, where I hold the chair of software sciences.I'm also a member of the Cambium research team of Inria, a French public research institute in computer science and applied mathematics.XAVIER LEROY
The Compcert verified compiler. Web site / Commercial version / Github development. Compcert is a moderately optimizing compiler from most of the ISO C 1999 language to PowerPC, ARM and x86 assembly language.RANDOM BITS
Pictures: The Microsoft Natural Keyboard.. En Français: Les films en kit d'Umberto Eco.. L'École Normale Supérieure en 1908: vie quotidienne et blues du Normalien.Encore remarquablement d'actualité. Ce que La Fontaine pense de Caml dans l'enseignement.. Une présentation du projet Thérèse.. In English: MECHANIZED SEMANTICS FOR THE CLIGHT SUBSET OF THE C LANGUAGE Journal of Automated Reasoning manuscript No. (will be inserted by the editor) Mechanized semantics for the Clight subset of the C language Sandrine Blazy · Xavier Leroy the date of receipt and acceptance should be inserted later COMPILING FUNCTIONAL LANGUAGES Functional languages = applied ‚-calculus Recipe for a functional language: † Fix an evaluation strategy on the ‚-calculus. – Weak evaluation (no reductions under ‚). – Call-by-name or call-by-value. † Add constants and primitive operations – Integers and arithmetic operations. A SYNTACTIC THEORY OF TYPE GENERATIVITY AND SHARING A syntactic theory of type generativity and sharing 5 signatures. Functor signatures 8N1:(§1;8N2:§2) are composed of two signatures and two sets of universally quantifled names: the signature §1 describes the ex- pected shape for the argument, the signature §2 describes the result structure, N2 is the set of stamps that must be generated afresh at each application, and N1 is COINDUCTIVE BIG-STEP OPERATIONAL SEMANTICS The relation a ⇒co b (read: “a coevaluates to b”) is therefore the greatest fixpoint of the standard evaluation rules. It holds if and only if a ⇒co b is the conclusion of a finite or infinite derivation tree built from these rules. Naively, we could expect that ⇒co is the union of ⇒ and ⇒∞.This intuition is supported by the following properties: FORMAL VERIFICATION OF OBJECT LAYOUT FOR C++ MULTIPLEC++ CLASS MEMORY LAYOUTC++ OBJECT MODELC++ VIRTUAL INHERITANCE LAYOUT MEMORYC STRUCT MEMORY LAYOUTMEMORY LAYOUT IN CPROCESS MEMORY LAYOUT Formal Verification of Object Layout for C++ Multiple Inheritance Tahina Ramananandro INRIA Paris-Rocquencourt Tahina.Ramananandro@inria.fr Gabriel Dos Reis COINDUCTIVE BIG-STEP OPERATIONAL SEMANTICS Coinductive big-step operational semantics Xavier Leroya,∗ Herv´e Grallb aINRIA Paris-Rocquencourt Domaine de Voluceau, B.P. 105, 78153 Le Chesnay, France bEcole des Mines de Nantes´ La Chantrerie, 4, rue Alfred Kastler, B.P. 20722, 44307 Nantes, France AN OVERVIEW OF TYPES IN COMPILATION An overview of Types in Compilation? Xavier Leroy INRIA Rocquencourt Domaine de Voluceau, 78153 Le Chesnay, France 1 Types in programminglanguages
XAVIER LEROY
Hello and welcome to my corner of the Web. I'm a senior computer scientist interested in all scientific aspects of computer programming. I'm a professor at Collège de France, where I hold the chair of software sciences.I'm also a member of the Cambium research team of Inria, a French public research institute in computer science and applied mathematics.XAVIER LEROY
The Compcert verified compiler. Web site / Commercial version / Github development. Compcert is a moderately optimizing compiler from most of the ISO C 1999 language to PowerPC, ARM and x86 assembly language.RANDOM BITS
Pictures: The Microsoft Natural Keyboard.. En Français: Les films en kit d'Umberto Eco.. L'École Normale Supérieure en 1908: vie quotidienne et blues du Normalien.Encore remarquablement d'actualité. Ce que La Fontaine pense de Caml dans l'enseignement.. Une présentation du projet Thérèse.. In English: MECHANIZED SEMANTICS FOR THE CLIGHT SUBSET OF THE C LANGUAGE Journal of Automated Reasoning manuscript No. (will be inserted by the editor) Mechanized semantics for the Clight subset of the C language Sandrine Blazy · Xavier Leroy the date of receipt and acceptance should be inserted later COMPILING FUNCTIONAL LANGUAGES Functional languages = applied ‚-calculus Recipe for a functional language: † Fix an evaluation strategy on the ‚-calculus. – Weak evaluation (no reductions under ‚). – Call-by-name or call-by-value. † Add constants and primitive operations – Integers and arithmetic operations. A SYNTACTIC THEORY OF TYPE GENERATIVITY AND SHARING A syntactic theory of type generativity and sharing 5 signatures. Functor signatures 8N1:(§1;8N2:§2) are composed of two signatures and two sets of universally quantifled names: the signature §1 describes the ex- pected shape for the argument, the signature §2 describes the result structure, N2 is the set of stamps that must be generated afresh at each application, and N1 is COINDUCTIVE BIG-STEP OPERATIONAL SEMANTICS The relation a ⇒co b (read: “a coevaluates to b”) is therefore the greatest fixpoint of the standard evaluation rules. It holds if and only if a ⇒co b is the conclusion of a finite or infinite derivation tree built from these rules. Naively, we could expect that ⇒co is the union of ⇒ and ⇒∞.This intuition is supported by the following properties: FORMAL VERIFICATION OF OBJECT LAYOUT FOR C++ MULTIPLEC++ CLASS MEMORY LAYOUTC++ OBJECT MODELC++ VIRTUAL INHERITANCE LAYOUT MEMORYC STRUCT MEMORY LAYOUTMEMORY LAYOUT IN CPROCESS MEMORY LAYOUT Formal Verification of Object Layout for C++ Multiple Inheritance Tahina Ramananandro INRIA Paris-Rocquencourt Tahina.Ramananandro@inria.fr Gabriel Dos Reis COINDUCTIVE BIG-STEP OPERATIONAL SEMANTICS Coinductive big-step operational semantics Xavier Leroya,∗ Herv´e Grallb aINRIA Paris-Rocquencourt Domaine de Voluceau, B.P. 105, 78153 Le Chesnay, France bEcole des Mines de Nantes´ La Chantrerie, 4, rue Alfred Kastler, B.P. 20722, 44307 Nantes, France AN OVERVIEW OF TYPES IN COMPILATION An overview of Types in Compilation? Xavier Leroy INRIA Rocquencourt Domaine de Voluceau, 78153 Le Chesnay, France 1 Types in programminglanguages
XAVIER LEROY
Home page of Xavier Leroy, a computer scientist. Information on Xavier Leroy's research projects, publications, and open-source software.RANDOM BITS
Pictures: The Microsoft Natural Keyboard.. En Français: Les films en kit d'Umberto Eco.. L'École Normale Supérieure en 1908: vie quotidienne et blues du Normalien.Encore remarquablement d'actualité. Ce que La Fontaine pense de Caml dans l'enseignement.. Une présentation du projet Thérèse.. In English:LEROY
Nathanaël Courant and Xavier Leroy. Verified code generation for the polyhedral model. Proc. ACM Program. Lang., 5(POPL):40:1--40:24, 2021. Xavier Leroy. SoftwareHOW TO PROVE IT
How to prove it Proof by example: The author gives only the case n = 2 and suggests that it contains most of the ideas of the general proof. Proof by intimidation: TOMATOTOPIC ORGANIZATION IN THE SOPRANO Cross-examination of responses driven by other projectiles and Ketchup stimulation are shown on figure 2 and argue unquestionably in favor of a tomatotopic organization of the YR along, between and across the NARTpl, apTL and scMS. Temporal relationships of those responses, as examplified in fig. 3, showed that the hypothesis of a clustering interdigitation of neuronal subnets is highly A COMPILED IMPLEMENTATION OF STRONG REDUCTION A Compiled Implementation of Strong Reduction Benjamin Gregoire´ INRIA Rocquencourt Domaine de Voluceau, B.P. 105 78153 Le Chesnay, France Benjamin.Gregoire@inria.fr COINDUCTIVE BIG-STEP OPERATIONAL SEMANTICS Coinductive big-step operational semantics Xavier Leroya,∗ Herv´e Grallb aINRIA Paris-Rocquencourt Domaine de Voluceau, B.P. 105, 78153 Le Chesnay, France bEcole des Mines de Nantes´ La Chantrerie, 4, rue Alfred Kastler, B.P. 20722, 44307 Nantes, France ABSTRACT TYPES AND THE DOT NOTATION Authors’ abstract We investigate the use of the dot notation in the context of abstract types. The dot notation|that is, a:f referring to the operation f provided by the abstraction a|is used by programming languages such as Modula-2 and CLU. A FORMALLY-VERI ED ALIAS ANALYSIS A Formally-Veri ed Alias Analysis Valentin Robert 1;2 and Xavier Leroy 1 INRIA Paris-Rocquencourt 2 University of California, San Diego vrobert@cs.ucsd.edu, xavier.leroy@inria.fr Abstract. This paper reports on the formalization and proof of sound- POLYMORPHIC TYPE INFERENCE AND ASSIGNMENT type A, nor a value of type B, in contrast with regular datatypes such as A £ B or A list.Hence it seems there are no dangerous variables in type A ! B, even if A or B contain dangerous variables themselves. For instance, the function let make ref = function x ! ref x has type fi ! fi ref, and fi is not dangerous in it, so it is fully polymorphic. home research publicationssoftware proofs
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SEE ALSO
Collège de France (français)Collège de
France (english)
Page
Wikipedia (français) Wikipedia page (english)Academia.edu
Researchgate
Hello and welcome to my corner of the Web. I'm a senior computer scientist interested in all scientific aspects of computer programming. I'm a professor at Collège de France , where I hold the chair ofsoftware sciences
. I'm also a
member of the Cambium research team of Inria , a French public research institute in computer science and applied mathematics.NEWS
Publication: Verified Code Generation for the Polyhedral Model , by Nathanaël Courant and I, to be presented at POPL 2021, with accompanying Coq development.
Lecture material: slides in English are now available for my Collège de France lectures on The Curry-howard correspondence today (2018-2019) and on Mechanized semantics (2019-2020). See also the companion Coq development.
Publication: the text of my inaugural lecture at Collège de France, _Software, between mind and matter_, is now available freely: in the original French at OpenEdition Books(HTML) and at HAL
(PDF); and in English through a preliminary translationand e-book).
Publication (in French): the text of my inaugural lecture at Collège de France, _Le logiciel, entre l'esprit et la matière_, is now available as a book and an e-book.
The video of the lecture is still available, in the original French, but also with an English voice-over translation.
Appointment: I am proud to be appointed professor at Collège de France on the chair ofsoftware sciences
. It's a great
honor but also a great responsibility! (This is the second permanent chair in computer science at Collège de France, after Gérard Berry'schair .)
Award: I am honored to receive the Grand prix Inria - Académie des sciences2018.
Publication: CompCert: Practical Experience on Integrating and Qualifying a Formally Verified Optimizing Compiler , by Daniel Kästner et al, presented at ERTS 2018. This paper describes the first use of CompCert in production for a safety-critical application in the nuclear industry, including IEC 60880certification.
I was interviewed
by Jean Yang
as part of a "People of ProgrammingLanguages" series.
Publication: A Formally Verified Compiler for Lustre , by Timothy Bourke, Lélio Brun, Pierre-Evariste Dagand, myself, Marc Pouzet and Lionel Rieg, PLDI2017.
Software and Coq development: version 3.0 of Compcert is released. This is the first CompCert version that fully supports 64-bit target processors; more precisely, pointers and memory addresses are no longer assumed to be 32-bit wide and can be 64-bit wide as well depending on the target. Definitely 3.0material!
Public lecture: video of my Milner award lecture at the Royal Society. Award: I am deeply honored to receive one of the two 2016 van Wijngaarden awards from CWI. Award: my POPL 2006 paper, _Formal certification of a compiler back-end, or: programming a compiler with a proof assistant_,
received the ACM SIGPLAN Most Influential POPL Paper Award.
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