Public bug reported:
Simple C++ code example to trigger this error:
#include <string>
#include <iostream>
int main()
{
std::cout << std::to_string(4) << std::endl;
return 0;
}
Building with:
g++-5 -std=c++11 main.cpp -o main
will yield this error:
main.cpp: In function 'int main()':
main.cpp:6:16: error: 'to_string' is not a member of 'std'
std::cout << std::to_string(4) << std::endl;
^
however when building with "D_GLIBCXX_USE_C99" flag it works:
g++-5 -D_GLIBCXX_USE_C99 -std=c++11 main.cpp -o main
I do not think it should be necessary to provide this flag, especially
when G++ 5.4 does not need this flag on other distributions,
std::to_string was introduced in C++11, so -std=c++11 should be enough.
This was tested on Ubuntu 17.10
** Affects: gcc-5 (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1739778
Title:
G++ 5.4 does not compile some C++11 code without workaround flag
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