I am using g++ 4.4.1 and want to use nullptr
, but I am not being able to find which header file is required to be included. It does not seem to be keyword either, because my attempt to use it is rejected as
error: 'nullptr' was not declared in this scope
GCC 4.4.1 does not support nullptr
.
Support for nullptr
was added in GCC 4.6.0:
http://gcc.gnu.org/gcc-4.6/changes.html
Improved experimental support for the upcoming C++0x ISO C++ standard, including support for nullptr (thanks to Magnus Fromreide), noexcept, unrestricted unions, range-based for loops (thanks to Rodrigo Rivas Costa), implicitly deleted functions and implicit move constructors.
For earlier versions of GCC, if you want to experiment with nullptr
you can try the workaround in this SO question: