We're hoping to use icpc in place of gcc 4.5.x. We use a fairly small subset of C++0x, but we're unable to build any code at all, getting error messages upon trying to use enum classes, for example:
enum class Foo { Bar, Baz };
int main(int argc, const char* argv[]) {
Foo f = Foo::Bar;
return 1;
}
enum class Foo { Bar, Baz };
int main(int argc, const char* argv[]) {Foo f = Foo::Bar;return 1;}
$ icpc -std=c++0x /tmp/foo.cc
/tmp/foo.cc(4): error: name followed by "::" must be a class or namespace name
Foo f = Foo::Bar;
-- are enum classes not implemented? The syntax seems partially supported (if I don't specify the -std=c++0x I get different errors)
More worryingly if I "fix" this I then get a problem where ICC isn't defining GCC's __GXX_EXPERIMENTAL_CXX0X__ macro:
/usr/include/c++/4.5.1/bits/c++0x_warning.h(31): catastrophic error: #error directive: This file requires compiler and library support for the upcoming ISO C++ standard, C++0x. This support is currently experimental, and must be enabled with the -std=c++0x or -std=gnu++0x compiler options.
#error This file requires compiler and library support for the upcoming \\
^
... If I then manually define this constant I get an absolute ton of errors throughout the GCC headers.
I tried with gcc4.4 headers too and get a different set of errors.
What am I doing wrong, or does icpc not support GCC 4.4+ and/or C++0x at all?
