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C++11 polyfills. This should fix Snow Leopard build.

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This commit is contained in:
rdb 2017-01-05 23:24:52 +01:00
parent 53752bd376
commit 816b2ac3ba
1 changed files with 14 additions and 1 deletions
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15
dtool/src/dtoolbase/dtoolbase_cc.h
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@ -75,6 +75,7 @@ typedef int ios_seekdir;
#endif
#include <string>
#include <utility>
#ifdef HAVE_NAMESPACE
using namespace std;
@ -114,6 +115,18 @@ typedef ios::iostate ios_iostate;
typedef ios::seekdir ios_seekdir;
#endif
// Apple has an outdated libstdc++. Not all is lost, though, as we can fill
// in some important missing functions.
#if defined(__GLIBCXX__) && __GLIBCXX__ <= 20070719
template<class T> struct remove_reference {typedef T type;};
template<class T> struct remove_reference<T&> {typedef T type;};
template<class T> struct remove_reference<T&& >{typedef T type;};
template<class T> typename remove_reference<T>::type &&move(T &&t) {
return static_cast<typename remove_reference<T>::type&&>(t);
}
#endif
#ifdef _MSC_VER
#define ALWAYS_INLINE __forceinline
#elif defined(__GNUC__)
@ -153,7 +166,7 @@ typedef ios::seekdir ios_seekdir;
#elif defined(__GNUC__) && (__cplusplus >= 201103L) // GCC
// GCC defines several macros which we can query. List of all supported
// builtin macros: https:gcc.gnu.orgprojectscxx0x.html
// builtin macros: https://gcc.gnu.org/projects/cxx-status.html
# if __cpp_constexpr >= 200704
# define CONSTEXPR constexpr
# endif