@shafik@hachyderm.io @shafikyaghmour

Compiler Engineer clang front end. Interests: C++, C, and undefined behavior. Martial Artist, Book Worm and Dad. @shafik@hachyderm.io he/him

 Cupertino, CA
linktr.ee/syaghmour
Joined October 2009
I added a new answer to the "What is the strict aliasing rule?" Stackoverflow question since I felt like the existing ones left a lot of be desired: stackoverflow.com/a/51228315… It is based on my Strict Aliasing write-up: x.com/shafikyaghmour/status/… #cplusplus #programming
@shafik@hachyderm.io @shafikyaghmour
30 Mar 2018
What is the Strict Aliasing Rule and Why do we care? Or Type Punning, Undefined Behavior and Alignment, Oh My! gist.github.com/shafik/848ae… #cplusplus #cpp17 #cprogramming #programming
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Answer here: hachyderm.io/@shafik/1127183…

Shafik Yaghmour (@shafik@hachyderm.io)

#274 Given the following in C++ typedef void F(); F fv { } // Well-formed definition? Without checking: A. Yes B. No C. Show results #Cplusplus #Cpppolls [ ] A [ ] B [ ] C

hachyderm.io
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C++ quiz #274 #cplusplus #cpppolls
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Answer here: hachyderm.io/@shafik/1124809…

Shafik Yaghmour (@shafik@hachyderm.io)

#271 Given the following in C++ struct S { static int i; }; auto S::i = 23; // Well-formed? Note use of auto Without checking: A. Yes B. No C. Show results #Cplusplus #Cpppolls [ ] A [ ] B [ ] C

hachyderm.io
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C++ quiz #271 #cplusplus #cpppolls
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Answer here: hachyderm.io/@shafik/1124412…

Shafik Yaghmour (@shafik@hachyderm.io)

#270 Given the following in C++ template void f(T); void g() { f(1); f(); // Well-formed? f now takes zero arguments? } Without checking: A. Yes B. No C. Show results #Cplusplus #Cpppolls [ ] A [ ] B...

hachyderm.io
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C++ quiz #270 #cplusplus #cpppolls
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Answer here: hachyderm.io/@shafik/1124007…

Shafik Yaghmour (@shafik@hachyderm.io)

#269 Given the following in C++ int f(int i) { switch (i) { case 1: break; // Is the following line well-formed? [[likely,unlikely]] case 2: return 1; } return 2; } Without checking: A. Yes B. No C....

hachyderm.io
C++ quiz #269 #Cplusplus #Cpppolls
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Answer here: hachyderm.io/@shafik/1123611…

Shafik Yaghmour (@shafik@hachyderm.io)

#268 Given the following in C++ int f() { [[deprecated]] int a; // Well-formed? Can we deprecate a local variable? return a; } Without checking: A. Yes B. No C. Show results #Cplusplus #Cpppolls [ ]...

hachyderm.io
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C++ quiz #268 #cplusplus #cpppolls
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hachyderm.io/@shafik/1123264…

Shafik Yaghmour (@shafik@hachyderm.io)

#267 Given the following in C++ void f(const void); // Well-formed? A. Yes B. No C. Show results #Cplusplus #Cpppolls [ ] A [ ] B [ ] C

hachyderm.io
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C++ quiz #267 #cplusplus #cpppolls
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Answer here: hachyderm.io/@shafik/1122989…

Shafik Yaghmour (@shafik@hachyderm.io)

Retro C++ quiz #12 In C++ given #include auto f() { std::variant v; return v.index(); // What value is returned? } Without checking: A: std::variant_npos B: 0 C: Show answers #cplusplus #Cpppolls [ ]...

hachyderm.io
Retro C++ quiz #12 #cplusplus #cpppolls
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Answer here: hachyderm.io/@shafik/1122823…

Shafik Yaghmour (@shafik@hachyderm.io)

#266 Given the following in C++ struct A { int; // Well-formed? }; A. Yes B. No C. Show results #Cplusplus #Cpppolls [ ] A [ ] B [ ] C

hachyderm.io
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C++ quiz #266 #Cplusplus #cpppolls
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hachyderm.io/@shafik/1122034…

Shafik Yaghmour (@shafik@hachyderm.io)

#264 Given the following in C++ void f() { sizeof([]{}); // Well-formed? } Without checking: A. Yes B. No C. Show results #Cplusplus #Cpppolls [ ] A [ ] B [ ] C

hachyderm.io
C++ quiz #264 #cplusplus #cpppolls
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Answer here: hachyderm.io/@shafik/1122478…

Shafik Yaghmour (@shafik@hachyderm.io)

#265 Given the following in C++ struct A { virtual void f() = 0; }; void A::f(){} // Well-formed, definition of pure virtual function A. Yes B. No C. Show results #Cplusplus #Cpppolls [ ] A [ ] B [ ]...

hachyderm.io
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C++ quiz #265 #cplusplus #cpppolls
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