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Parsing float numeric strings using std::istream gives results that are inconsistent with the parsing of the same numeric string using stdio sscanf() and using the C++ compiler. See the following exam…
Created on 5/2/2014 (updated 21 weeks ago) | 0 validations | 0 workarounds | 2 comments | feedback id: 866093  | 
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The following C++ code causes the VS2013 compiler to crash: template<int dim0, int... odims> class Grid { }; template<int dim> using Array = Grid<dim>; template<int dim> void func(Array<dim>) { } …
Created on 11/26/2013 (updated 44 weeks ago) | 0 validations | 0 workarounds | 2 comments | feedback id: 809796  | 
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The following program (compiled in x64 debug) crashes at runtime. According to the discussion at http://stackoverflow.com/questions/14106653/are-function-local-static-mutexes-thread-safe , a static mu…
Created on 11/7/2013 (updated 1 week ago) | 0 validations | 0 workarounds | 5 comments | feedback id: 808030  | 
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The following program returns a random nonzero exit code. The C++ standard states that the exit code should be zero. #include <iostream> #include <omp.h> int main() { #pragma omp parallel for f…
Created on 11/5/2013 (updated 37 weeks ago) | 0 validations | 0 workarounds | 5 comments | feedback id: 807774  | 
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The code below causes a parsing error: #include <iostream> int main() { if (1) { for (int i=0; i<3; i++) do { std::cout << i << "\n"; } while (0); // OK } if (1) { …
Created on 10/30/2013 (updated 38 weeks ago) | 0 validations | 0 workarounds | 3 comments | feedback id: 807117  | 
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The following code causes an internal compiler error on VS2013 (e.g. with Win32 and Debug): #include <array> template<typename T, int n> struct A { A() = default; // intent is to ob…
Created on 10/20/2013 (updated 30 weeks ago) | 0 validations | 0 workarounds | 3 comments | feedback id: 806017  | 
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Given an empty string, operator[](0) shows a debug assertion error "string subscript out of range". The C++ standard (both before and after C++11) specify that operator[](size()) should return a refe…
Created on 3/27/2012 (updated 130 weeks ago) | 0 validations | 0 workarounds | 4 comments | feedback id: 733729  | 
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A simple C++ program below produces the correct result in Debug but incorrect result in Release mode. (This is true with either Win32 or x64 compiler.) The unexpected result is: d=0 1<<d=1 d=0 1<<d=0…
Created on 1/24/2012 (updated 22 weeks ago) | 2 validations | 2 workarounds | 10 comments | feedback id: 720646  | 
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