diff options
Diffstat (limited to 'include/Support/hash_map')
| -rw-r--r-- | include/Support/hash_map | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/include/Support/hash_map b/include/Support/hash_map index 83480d5205..b6eda7a012 100644 --- a/include/Support/hash_map +++ b/include/Support/hash_map @@ -1,5 +1,6 @@ //===-- Support/hash_map - "Portable" wrapper around hash_map ---*- C++ -*-===// -// +// vim:ft=cpp +// // This file provides a wrapper around the mysterious <hash_map> header file // that seems to move around between GCC releases into and out of namespaces at // will. #including this header will cause hash_map to be available in the @@ -21,19 +22,22 @@ #include "Config/config.h" #ifdef HAVE_GNU_EXT_HASH_MAP - +// This is for GCC-3.1+ which puts hash in ext/hash_map #include <ext/hash_map> #define HASH_NAMESPACE __gnu_cxx #else +// This is for GCC-3.0.x which puts hashmap in the `ext' directory. #ifdef HAVE_STD_EXT_HASH_MAP #include <ext/hash_map> #define HASH_NAMESPACE std #else +// This handles older, pre-3.0 GCC which do not have the extentions in the `ext' +// directory, and ignore the `std' namespace. #include <hash_map> -#define HASH_NAMESPACE +#define HASH_NAMESPACE std #endif #endif |