| /* internal.h | |
| Internal definitions used by Expat. This is not needed to compile | |
| client code. | |
| The following calling convention macros are defined for frequently | |
| called functions: | |
| FASTCALL - Used for those internal functions that have a simple | |
| body and a low number of arguments and local variables. | |
| PTRCALL - Used for functions called though function pointers. | |
| PTRFASTCALL - Like PTRCALL, but for low number of arguments. | |
| inline - Used for selected internal functions for which inlining | |
| may improve performance on some platforms. | |
| Note: Use of these macros is based on judgement, not hard rules, | |
| and therefore subject to change. | |
| */ | |
| #if defined(__GNUC__) && defined(__i386__) | |
| /* We'll use this version by default only where we know it helps. | |
| regparm() generates warnings on Solaris boxes. See SF bug #692878. | |
| Instability reported with egcs on a RedHat Linux 7.3. | |
| Let's comment out: | |
| #define FASTCALL __attribute__((stdcall, regparm(3))) | |
| and let's try this: | |
| */ | |
| #define FASTCALL __attribute__((regparm(3))) | |
| #define PTRFASTCALL __attribute__((regparm(3))) | |
| #endif | |
| /* Using __fastcall seems to have an unexpected negative effect under | |
| MS VC++, especially for function pointers, so we won't use it for | |
| now on that platform. It may be reconsidered for a future release | |
| if it can be made more effective. | |
| Likely reason: __fastcall on Windows is like stdcall, therefore | |
| the compiler cannot perform stack optimizations for call clusters. | |
| */ | |
| /* Make sure all of these are defined if they aren't already. */ | |
| #ifndef FASTCALL | |
| #define FASTCALL | |
| #endif | |
| #ifndef PTRCALL | |
| #define PTRCALL | |
| #endif | |
| #ifndef PTRFASTCALL | |
| #define PTRFASTCALL | |
| #endif | |
| #ifndef XML_MIN_SIZE | |
| #if !defined(__cplusplus) && !defined(inline) | |
| #ifdef __GNUC__ | |
| #define inline __inline | |
| #endif /* __GNUC__ */ | |
| #endif | |
| #endif /* XML_MIN_SIZE */ | |
| #ifdef __cplusplus | |
| #define inline inline | |
| #else | |
| #ifndef inline | |
| #define inline | |
| #endif | |
| #endif |