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1/* internal.h
2
3 Internal definitions used by Expat. This is not needed to compile
4 client code.
5
6 The following calling convention macros are defined for frequently
7 called functions:
8
9 FASTCALL - Used for those internal functions that have a simple
10 body and a low number of arguments and local variables.
11
12 PTRCALL - Used for functions called though function pointers.
13
14 PTRFASTCALL - Like PTRCALL, but for low number of arguments.
15
16 inline - Used for selected internal functions for which inlining
17 may improve performance on some platforms.
18
19 Note: Use of these macros is based on judgement, not hard rules,
20 and therefore subject to change.
21*/
22
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23#ifdef FASTCALL
24#undef FASTCALL
25#endif
26
b17f6a30 27#if defined(__GNUC__) && defined(__i386__)
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28/* Instability reported with egcs on a RedHat Linux 7.3.
29 Let's comment it out:
30 #define FASTCALL __attribute__((stdcall, regparm(3)))
31 and let's try this:
32*/
33#define FASTCALL __attribute__((regparm(3)))
34#define PTRCALL
35#define PTRFASTCALL __attribute__((regparm(3)))
36
37#elif defined(WIN32)
38/* Using __fastcall seems to have an unexpected negative effect under
39 MS VC++, especially for function pointers, so we won't use it for
40 now on that platform. It may be reconsidered for a future release
41 if it can be made more effective.
42 Likely reason: __fastcall on Windows is like stdcall, therefore
43 the compiler cannot perform stack optimizations for call clusters.
44*/
45#define FASTCALL
46#define PTRCALL
47#define PTRFASTCALL
48
49#endif
50
51#ifndef FASTCALL
52#define FASTCALL
53#endif
54
55#ifndef PTRCALL
56#define PTRCALL
57#endif
58
59#ifndef PTRFASTCALL
60#define PTRFASTCALL
61#endif
62
63#ifndef XML_MIN_SIZE
64#if !defined(__cplusplus) && !defined(inline)
65#ifdef __GNUC__
66#define inline __inline
67#endif /* __GNUC__ */
68#endif
69#endif /* XML_MIN_SIZE */
70
71#ifdef __cplusplus
72#define inline inline
73#else
74#ifndef inline
75#define inline
76#endif
77#endif