On 7/26/2015 10:03 PM, Jeffrey Walton wrote:
On Sun, Jul 26, 2015 at 9:55 PM, Jeff Epler <jepler@xxxxxxxxxxxxxx> wrote:Noexcept is a C++11 feature, so it has to be enabled by -std=c++11 or -std=gnu++11 (or, on some older gcc verions, -std=c++0x/gnu++0x) $ cat noex.cc void fn() noexcept(false); $ g++ -c noex.cc noex.cc:1:11: error: expected initializer before ‘noexcept’ void fn() noexcept(false); ^ $ g++ -std=c++11 -c noex.cc $Right. But these are sources that compile under both C++03 and C++11. If I enable the macro for C++11, then I break C++03 because 03 won't know what to do with 'noexcept(false)'. Not defining __cpluplus makes things very difficult....
Try #if defined(__GXX_EXPERIMENTAL_CXX0X__) || (__cplusplus >= 201103L) // C++11 is in effect #endif
