/*
SDL - Simple DirectMedia Layer
- Copyright (C) 1997-2006 Sam Lantinga
+ Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
slouken@libsdl.org
*/
-/* This is a general header that includes C language support */
+/** @file SDL_stdinc.h
+ * This is a general header that includes C language support
+ */
#ifndef _SDL_stdinc_h
#define _SDL_stdinc_h
#ifdef HAVE_CTYPE_H
# include <ctype.h>
#endif
-#ifdef HAVE_ICONV_H
+#if defined(HAVE_ICONV) && defined(HAVE_ICONV_H)
# include <iconv.h>
#endif
-/* The number of elements in an array */
+/** The number of elements in an array */
#define SDL_arraysize(array) (sizeof(array)/sizeof(array[0]))
#define SDL_TABLESIZE(table) SDL_arraysize(table)
-/* Basic data types */
-typedef enum SDL_bool {
+/* Use proper C++ casts when compiled as C++ to be compatible with the option
+ -Wold-style-cast of GCC (and -Werror=old-style-cast in GCC 4.2 and above. */
+#ifdef __cplusplus
+#define SDL_reinterpret_cast(type, expression) reinterpret_cast<type>(expression)
+#define SDL_static_cast(type, expression) static_cast<type>(expression)
+#else
+#define SDL_reinterpret_cast(type, expression) ((type)(expression))
+#define SDL_static_cast(type, expression) ((type)(expression))
+#endif
+
+/** @name Basic data types */
+/*@{*/
+typedef enum {
SDL_FALSE = 0,
SDL_TRUE = 1
} SDL_bool;
} Uint64, Sint64;
#endif
-/* Make sure the types really have the right sizes */
+/*@}*/
+
+/** @name Make sure the types really have the right sizes */
+/*@{*/
#define SDL_COMPILE_TIME_ASSERT(name, x) \
typedef int SDL_dummy_ ## name[(x) * 2 - 1]
SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
-
-/* Check to make sure enums are the size of ints, for structure packing.
- For both Watcom C/C++ and Borland C/C++ the compiler option that makes
- enums having the size of an int must be enabled.
- This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
-*/
+/*@}*/
+
+/** @name Enum Size Check
+ * Check to make sure enums are the size of ints, for structure packing.
+ * For both Watcom C/C++ and Borland C/C++ the compiler option that makes
+ * enums having the size of an int must be enabled.
+ * This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
+ */
/* Enable enums always int in CodeWarrior (for MPW use "-enum int") */
#ifdef __MWERKS__
#pragma enumsalwaysint on
#ifndef __NDS__
SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
#endif
-
+/*@}*/
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
"cld\n\t" \
"rep ; stosl\n\t" \
: "=&D" (u0), "=&a" (u1), "=&c" (u2) \
- : "0" (dst), "1" (val), "2" ((Uint32)(len)) \
+ : "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, len)) \
: "memory" ); \
} while(0)
#endif
do { \
unsigned _count = (len); \
unsigned _n = (_count + 3) / 4; \
- Uint32 *_p = (Uint32 *)(dst); \
+ Uint32 *_p = SDL_static_cast(Uint32 *, dst); \
Uint32 _val = (val); \
+ if (len == 0) break; \
switch (_count % 4) { \
case 0: do { *_p++ = _val; \
case 3: *_p++ = _val; \
"movsb\n" \
"2:" \
: "=&c" (u0), "=&D" (u1), "=&S" (u2) \
- : "0" ((unsigned)(len)/4), "q" (len), "1" (dst),"2" (src) \
+ : "0" (SDL_static_cast(unsigned, len)/4), "q" (len), "1" (dst),"2" (src) \
: "memory" ); \
} while(0)
#endif
"cld\n\t" \
"rep ; movsl" \
: "=&c" (ecx), "=&D" (edi), "=&S" (esi) \
- : "0" ((unsigned)(len)), "1" (dst), "2" (src) \
+ : "0" (SDL_static_cast(unsigned, len)), "1" (dst), "2" (src) \
: "memory" ); \
} while(0)
#endif
#define SDL_revcpy(dst, src, len) \
do { \
int u0, u1, u2; \
- char *dstp = (char *)(dst); \
- char *srcp = (char *)(src); \
+ char *dstp = SDL_static_cast(char *, dst); \
+ char *srcp = SDL_static_cast(char *, src); \
int n = (len); \
if ( n >= 4 ) { \
__asm__ __volatile__ ( \
"std\n\t" \
"rep ; movsl\n\t" \
+ "cld\n\t" \
: "=&c" (u0), "=&D" (u1), "=&S" (u2) \
: "0" (n >> 2), \
"1" (dstp+(n-4)), "2" (srcp+(n-4)) \
extern DECLSPEC int SDLCALL SDL_vsnprintf(char *text, size_t maxlen, const char *fmt, va_list ap);
#endif
-/* The SDL implementation of iconv() returns these error codes */
+/** @name SDL_ICONV Error Codes
+ * The SDL implementation of iconv() returns these error codes
+ */
+/*@{*/
#define SDL_ICONV_ERROR (size_t)-1
#define SDL_ICONV_E2BIG (size_t)-2
#define SDL_ICONV_EILSEQ (size_t)-3
#define SDL_ICONV_EINVAL (size_t)-4
+/*@}*/
-#ifdef HAVE_ICONV
+#if defined(HAVE_ICONV) && defined(HAVE_ICONV_H)
#define SDL_iconv_t iconv_t
#define SDL_iconv_open iconv_open
#define SDL_iconv_close iconv_close
extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
#endif
extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft);
-/* This function converts a string between encodings in one pass, returning a
- string that must be freed with SDL_free() or NULL on error.
-*/
+/** This function converts a string between encodings in one pass, returning a
+ * string that must be freed with SDL_free() or NULL on error.
+ */
extern DECLSPEC char * SDLCALL SDL_iconv_string(const char *tocode, const char *fromcode, const char *inbuf, size_t inbytesleft);
#define SDL_iconv_utf8_locale(S) SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
#define SDL_iconv_utf8_ucs2(S) (Uint16 *)SDL_iconv_string("UCS-2", "UTF-8", S, SDL_strlen(S)+1)
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