std::this_thread::sleep_for() and GCC

Question

When I try to compile this simple program:

#include

void f() {
  std::this_thread::sleep_for(std::chrono::seconds(3));
}

int main() {
  std::         


        

Answer 1

Seems to work without the define on ubuntu 13.04 using gcc version 4.7.3

Answer 2

Need to define _GLIBCXX_USE_NANOSLEEP on top of the source code.

#define _GLIBCXX_USE_NANOSLEEP  //add it top of c++ code

OR, Compile with following commamd:

g++ a.cpp -o a -std=c++0x -D_GLIBCXX_USE_NANOSLEEP    //compile c++ code
./a       // run c++ code

Answer 3

Confirmed that it doesn't work here as well. (Recent GCC 4.6 snapshot).

You could do the obvious and simply define it before you include any std:: headers. A bit dirty but will work until GCC fixes it (unless this is intended behavior). The #define shouldn't break anything anyways. Either in source or -D_GLIBCXX_USE_NANOSLEEP flag to GCC.

You might want to try using -std=gnu++0x rather than -std=c++0x, since gnu++0x often pulls in stuff like this.

Answer 4

Additional information, in case it helps someone:

I do not need to define _GLIBCXX_USE_NANOSLEEP in Ubuntu 11.10, gcc 4.6.1, glibc 2.13.

But I do need to compile with -D_GLIBCXX_USE_NANOSLEEP on Gentoo, gcc 4.6.1, glibc 2.12.2.

I am not going to compile the Gentoo system for updating the glibc. At least not before the weekend ;)