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/*
2
  Simple DirectMedia Layer
3
  Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
4
 
5
  This software is provided 'as-is', without any express or implied
6
  warranty.  In no event will the authors be held liable for any damages
7
  arising from the use of this software.
8
 
9
  Permission is granted to anyone to use this software for any purpose,
10
  including commercial applications, and to alter it and redistribute it
11
  freely, subject to the following restrictions:
12
 
13
  1. The origin of this software must not be misrepresented; you must not
14
     claim that you wrote the original software. If you use this software
15
     in a product, an acknowledgment in the product documentation would be
16
     appreciated but is not required.
17
  2. Altered source versions must be plainly marked as such, and must not be
18
     misrepresented as being the original software.
19
  3. This notice may not be removed or altered from any source distribution.
20
*/
21
 
22
/**
23
 *  \file SDL_stdinc.h
24
 *
25
 *  This is a general header that includes C language support.
26
 */
27
 
28
#ifndef SDL_stdinc_h_
29
#define SDL_stdinc_h_
30
 
31
#include "SDL_config.h"
32
 
33
#ifdef HAVE_SYS_TYPES_H
34
#include <sys/types.h>
35
#endif
36
#ifdef HAVE_STDIO_H
37
#include <stdio.h>
38
#endif
39
#if defined(STDC_HEADERS)
40
# include <stdlib.h>
41
# include <stddef.h>
42
# include <stdarg.h>
43
#else
44
# if defined(HAVE_STDLIB_H)
45
#  include <stdlib.h>
46
# elif defined(HAVE_MALLOC_H)
47
#  include <malloc.h>
48
# endif
49
# if defined(HAVE_STDDEF_H)
50
#  include <stddef.h>
51
# endif
52
# if defined(HAVE_STDARG_H)
53
#  include <stdarg.h>
54
# endif
55
#endif
56
#ifdef HAVE_STRING_H
57
# if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
58
#  include <memory.h>
59
# endif
60
# include <string.h>
61
#endif
62
#ifdef HAVE_STRINGS_H
63
# include <strings.h>
64
#endif
65
#ifdef HAVE_WCHAR_H
66
# include <wchar.h>
67
#endif
68
#if defined(HAVE_INTTYPES_H)
69
# include <inttypes.h>
70
#elif defined(HAVE_STDINT_H)
71
# include <stdint.h>
72
#endif
73
#ifdef HAVE_CTYPE_H
74
# include <ctype.h>
75
#endif
76
#ifdef HAVE_MATH_H
77
# if defined(__WINRT__)
78
/* Defining _USE_MATH_DEFINES is required to get M_PI to be defined on
79
   WinRT.  See http://msdn.microsoft.com/en-us/library/4hwaceh6.aspx
80
   for more information.
81
*/
82
#  define _USE_MATH_DEFINES
83
# endif
84
# include <math.h>
85
#endif
86
#ifdef HAVE_FLOAT_H
87
# include <float.h>
88
#endif
89
 
90
/**
91
 *  The number of elements in an array.
92
 */
93
#define SDL_arraysize(array)    (sizeof(array)/sizeof(array[0]))
94
#define SDL_TABLESIZE(table)    SDL_arraysize(table)
95
 
96
/**
97
 *  Macro useful for building other macros with strings in them
98
 *
99
 *  e.g. #define LOG_ERROR(X) OutputDebugString(SDL_STRINGIFY_ARG(__FUNCTION__) ": " X "\n")
100
 */
101
#define SDL_STRINGIFY_ARG(arg)  #arg
102
 
103
/**
104
 *  \name Cast operators
105
 *
106
 *  Use proper C++ casts when compiled as C++ to be compatible with the option
107
 *  -Wold-style-cast of GCC (and -Werror=old-style-cast in GCC 4.2 and above).
108
 */
109
/* @{ */
110
#ifdef __cplusplus
111
#define SDL_reinterpret_cast(type, expression) reinterpret_cast<type>(expression)
112
#define SDL_static_cast(type, expression) static_cast<type>(expression)
113
#define SDL_const_cast(type, expression) const_cast<type>(expression)
114
#else
115
#define SDL_reinterpret_cast(type, expression) ((type)(expression))
116
#define SDL_static_cast(type, expression) ((type)(expression))
117
#define SDL_const_cast(type, expression) ((type)(expression))
118
#endif
119
/* @} *//* Cast operators */
120
 
121
/* Define a four character code as a Uint32 */
122
#define SDL_FOURCC(A, B, C, D) \
123
    ((SDL_static_cast(Uint32, SDL_static_cast(Uint8, (A))) << 0) | \
124
     (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (B))) << 8) | \
125
     (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (C))) << 16) | \
126
     (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (D))) << 24))
127
 
128
/**
129
 *  \name Basic data types
130
 */
131
/* @{ */
132
 
133
#ifdef __CC_ARM
134
/* ARM's compiler throws warnings if we use an enum: like "SDL_bool x = a < b;" */
135
#define SDL_FALSE 0
136
#define SDL_TRUE 1
137
typedef int SDL_bool;
138
#else
139
typedef enum
140
{
141
    SDL_FALSE = 0,
142
    SDL_TRUE = 1
143
} SDL_bool;
144
#endif
145
 
146
/**
147
 * \brief A signed 8-bit integer type.
148
 */
149
#define SDL_MAX_SINT8   ((Sint8)0x7F)           /* 127 */
150
#define SDL_MIN_SINT8   ((Sint8)(~0x7F))        /* -128 */
151
typedef int8_t Sint8;
152
/**
153
 * \brief An unsigned 8-bit integer type.
154
 */
155
#define SDL_MAX_UINT8   ((Uint8)0xFF)           /* 255 */
156
#define SDL_MIN_UINT8   ((Uint8)0x00)           /* 0 */
157
typedef uint8_t Uint8;
158
/**
159
 * \brief A signed 16-bit integer type.
160
 */
161
#define SDL_MAX_SINT16  ((Sint16)0x7FFF)        /* 32767 */
162
#define SDL_MIN_SINT16  ((Sint16)(~0x7FFF))     /* -32768 */
163
typedef int16_t Sint16;
164
/**
165
 * \brief An unsigned 16-bit integer type.
166
 */
167
#define SDL_MAX_UINT16  ((Uint16)0xFFFF)        /* 65535 */
168
#define SDL_MIN_UINT16  ((Uint16)0x0000)        /* 0 */
169
typedef uint16_t Uint16;
170
/**
171
 * \brief A signed 32-bit integer type.
172
 */
173
#define SDL_MAX_SINT32  ((Sint32)0x7FFFFFFF)    /* 2147483647 */
174
#define SDL_MIN_SINT32  ((Sint32)(~0x7FFFFFFF)) /* -2147483648 */
175
typedef int32_t Sint32;
176
/**
177
 * \brief An unsigned 32-bit integer type.
178
 */
179
#define SDL_MAX_UINT32  ((Uint32)0xFFFFFFFFu)   /* 4294967295 */
180
#define SDL_MIN_UINT32  ((Uint32)0x00000000)    /* 0 */
181
typedef uint32_t Uint32;
182
 
183
/**
184
 * \brief A signed 64-bit integer type.
185
 */
186
#define SDL_MAX_SINT64  ((Sint64)0x7FFFFFFFFFFFFFFFll)      /* 9223372036854775807 */
187
#define SDL_MIN_SINT64  ((Sint64)(~0x7FFFFFFFFFFFFFFFll))   /* -9223372036854775808 */
188
typedef int64_t Sint64;
189
/**
190
 * \brief An unsigned 64-bit integer type.
191
 */
192
#define SDL_MAX_UINT64  ((Uint64)0xFFFFFFFFFFFFFFFFull)     /* 18446744073709551615 */
193
#define SDL_MIN_UINT64  ((Uint64)(0x0000000000000000ull))   /* 0 */
194
typedef uint64_t Uint64;
195
 
196
/* @} *//* Basic data types */
197
 
198
/* Make sure we have macros for printing 64 bit values.
199
 * <stdint.h> should define these but this is not true all platforms.
200
 * (for example win32) */
201
#ifndef SDL_PRIs64
202
#ifdef PRIs64
203
#define SDL_PRIs64 PRIs64
204
#elif defined(__WIN32__)
205
#define SDL_PRIs64 "I64d"
206
#elif defined(__LINUX__) && defined(__LP64__)
207
#define SDL_PRIs64 "ld"
208
#else
209
#define SDL_PRIs64 "lld"
210
#endif
211
#endif
212
#ifndef SDL_PRIu64
213
#ifdef PRIu64
214
#define SDL_PRIu64 PRIu64
215
#elif defined(__WIN32__)
216
#define SDL_PRIu64 "I64u"
217
#elif defined(__LINUX__) && defined(__LP64__)
218
#define SDL_PRIu64 "lu"
219
#else
220
#define SDL_PRIu64 "llu"
221
#endif
222
#endif
223
#ifndef SDL_PRIx64
224
#ifdef PRIx64
225
#define SDL_PRIx64 PRIx64
226
#elif defined(__WIN32__)
227
#define SDL_PRIx64 "I64x"
228
#elif defined(__LINUX__) && defined(__LP64__)
229
#define SDL_PRIx64 "lx"
230
#else
231
#define SDL_PRIx64 "llx"
232
#endif
233
#endif
234
#ifndef SDL_PRIX64
235
#ifdef PRIX64
236
#define SDL_PRIX64 PRIX64
237
#elif defined(__WIN32__)
238
#define SDL_PRIX64 "I64X"
239
#elif defined(__LINUX__) && defined(__LP64__)
240
#define SDL_PRIX64 "lX"
241
#else
242
#define SDL_PRIX64 "llX"
243
#endif
244
#endif
245
 
246
/* Annotations to help code analysis tools */
247
#ifdef SDL_DISABLE_ANALYZE_MACROS
248
#define SDL_IN_BYTECAP(x)
249
#define SDL_INOUT_Z_CAP(x)
250
#define SDL_OUT_Z_CAP(x)
251
#define SDL_OUT_CAP(x)
252
#define SDL_OUT_BYTECAP(x)
253
#define SDL_OUT_Z_BYTECAP(x)
254
#define SDL_PRINTF_FORMAT_STRING
255
#define SDL_SCANF_FORMAT_STRING
256
#define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
257
#define SDL_SCANF_VARARG_FUNC( fmtargnumber )
258
#else
259
#if defined(_MSC_VER) && (_MSC_VER >= 1600) /* VS 2010 and above */
260
#include <sal.h>
261
 
262
#define SDL_IN_BYTECAP(x) _In_bytecount_(x)
263
#define SDL_INOUT_Z_CAP(x) _Inout_z_cap_(x)
264
#define SDL_OUT_Z_CAP(x) _Out_z_cap_(x)
265
#define SDL_OUT_CAP(x) _Out_cap_(x)
266
#define SDL_OUT_BYTECAP(x) _Out_bytecap_(x)
267
#define SDL_OUT_Z_BYTECAP(x) _Out_z_bytecap_(x)
268
 
269
#define SDL_PRINTF_FORMAT_STRING _Printf_format_string_
270
#define SDL_SCANF_FORMAT_STRING _Scanf_format_string_impl_
271
#else
272
#define SDL_IN_BYTECAP(x)
273
#define SDL_INOUT_Z_CAP(x)
274
#define SDL_OUT_Z_CAP(x)
275
#define SDL_OUT_CAP(x)
276
#define SDL_OUT_BYTECAP(x)
277
#define SDL_OUT_Z_BYTECAP(x)
278
#define SDL_PRINTF_FORMAT_STRING
279
#define SDL_SCANF_FORMAT_STRING
280
#endif
281
#if defined(__GNUC__)
282
#define SDL_PRINTF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __printf__, fmtargnumber, fmtargnumber+1 )))
283
#define SDL_SCANF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __scanf__, fmtargnumber, fmtargnumber+1 )))
284
#else
285
#define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
286
#define SDL_SCANF_VARARG_FUNC( fmtargnumber )
287
#endif
288
#endif /* SDL_DISABLE_ANALYZE_MACROS */
289
 
290
#define SDL_COMPILE_TIME_ASSERT(name, x)               \
291
       typedef int SDL_compile_time_assert_ ## name[(x) * 2 - 1]
292
/** \cond */
293
#ifndef DOXYGEN_SHOULD_IGNORE_THIS
294
SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
295
SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
296
SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
297
SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
298
SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
299
SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
300
SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
301
SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
302
#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
303
/** \endcond */
304
 
305
/* Check to make sure enums are the size of ints, for structure packing.
306
   For both Watcom C/C++ and Borland C/C++ the compiler option that makes
307
   enums having the size of an int must be enabled.
308
   This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
309
*/
310
 
311
/** \cond */
312
#ifndef DOXYGEN_SHOULD_IGNORE_THIS
313
#if !defined(__ANDROID__)
314
   /* TODO: include/SDL_stdinc.h:174: error: size of array 'SDL_dummy_enum' is negative */
315
typedef enum
316
{
317
    DUMMY_ENUM_VALUE
318
} SDL_DUMMY_ENUM;
319
 
320
SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
321
#endif
322
#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
323
/** \endcond */
324
 
325
#include "begin_code.h"
326
/* Set up for C function definitions, even when using C++ */
327
#ifdef __cplusplus
328
extern "C" {
329
#endif
330
 
331
#if defined(HAVE_ALLOCA) && !defined(alloca)
332
# if defined(HAVE_ALLOCA_H)
333
#  include <alloca.h>
334
# elif defined(__GNUC__)
335
#  define alloca __builtin_alloca
336
# elif defined(_MSC_VER)
337
#  include <malloc.h>
338
#  define alloca _alloca
339
# elif defined(__WATCOMC__)
340
#  include <malloc.h>
341
# elif defined(__BORLANDC__)
342
#  include <malloc.h>
343
# elif defined(__DMC__)
344
#  include <stdlib.h>
345
# elif defined(__AIX__)
346
#pragma alloca
347
# elif defined(__MRC__)
348
void *alloca(unsigned);
349
# else
350
char *alloca();
351
# endif
352
#endif
353
#ifdef HAVE_ALLOCA
354
#define SDL_stack_alloc(type, count)    (type*)alloca(sizeof(type)*(count))
355
#define SDL_stack_free(data)
356
#else
357
#define SDL_stack_alloc(type, count)    (type*)SDL_malloc(sizeof(type)*(count))
358
#define SDL_stack_free(data)            SDL_free(data)
359
#endif
360
 
361
extern DECLSPEC void *SDLCALL SDL_malloc(size_t size);
362
extern DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size);
363
extern DECLSPEC void *SDLCALL SDL_realloc(void *mem, size_t size);
364
extern DECLSPEC void SDLCALL SDL_free(void *mem);
365
 
366
typedef void *(SDLCALL *SDL_malloc_func)(size_t size);
367
typedef void *(SDLCALL *SDL_calloc_func)(size_t nmemb, size_t size);
368
typedef void *(SDLCALL *SDL_realloc_func)(void *mem, size_t size);
369
typedef void (SDLCALL *SDL_free_func)(void *mem);
370
 
371
/**
372
 *  \brief Get the current set of SDL memory functions
373
 */
374
extern DECLSPEC void SDLCALL SDL_GetMemoryFunctions(SDL_malloc_func *malloc_func,
375
                                                    SDL_calloc_func *calloc_func,
376
                                                    SDL_realloc_func *realloc_func,
377
                                                    SDL_free_func *free_func);
378
 
379
/**
380
 *  \brief Replace SDL's memory allocation functions with a custom set
381
 *
382
 *  \note If you are replacing SDL's memory functions, you should call
383
 *        SDL_GetNumAllocations() and be very careful if it returns non-zero.
384
 *        That means that your free function will be called with memory
385
 *        allocated by the previous memory allocation functions.
386
 */
387
extern DECLSPEC int SDLCALL SDL_SetMemoryFunctions(SDL_malloc_func malloc_func,
388
                                                   SDL_calloc_func calloc_func,
389
                                                   SDL_realloc_func realloc_func,
390
                                                   SDL_free_func free_func);
391
 
392
/**
393
 *  \brief Get the number of outstanding (unfreed) allocations
394
 */
395
extern DECLSPEC int SDLCALL SDL_GetNumAllocations(void);
396
 
397
extern DECLSPEC char *SDLCALL SDL_getenv(const char *name);
398
extern DECLSPEC int SDLCALL SDL_setenv(const char *name, const char *value, int overwrite);
399
 
400
extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, int (*compare) (const void *, const void *));
401
 
402
extern DECLSPEC int SDLCALL SDL_abs(int x);
403
 
404
/* !!! FIXME: these have side effects. You probably shouldn't use them. */
405
/* !!! FIXME: Maybe we do forceinline functions of SDL_mini, SDL_minf, etc? */
406
#define SDL_min(x, y) (((x) < (y)) ? (x) : (y))
407
#define SDL_max(x, y) (((x) > (y)) ? (x) : (y))
408
 
409
extern DECLSPEC int SDLCALL SDL_isdigit(int x);
410
extern DECLSPEC int SDLCALL SDL_isspace(int x);
411
extern DECLSPEC int SDLCALL SDL_toupper(int x);
412
extern DECLSPEC int SDLCALL SDL_tolower(int x);
413
 
414
extern DECLSPEC void *SDLCALL SDL_memset(SDL_OUT_BYTECAP(len) void *dst, int c, size_t len);
415
 
416
#define SDL_zero(x) SDL_memset(&(x), 0, sizeof((x)))
417
#define SDL_zerop(x) SDL_memset((x), 0, sizeof(*(x)))
418
 
419
/* Note that memset() is a byte assignment and this is a 32-bit assignment, so they're not directly equivalent. */
420
SDL_FORCE_INLINE void SDL_memset4(void *dst, Uint32 val, size_t dwords)
421
{
422
#if defined(__GNUC__) && defined(i386)
423
    int u0, u1, u2;
424
    __asm__ __volatile__ (
425
        "cld \n\t"
426
        "rep ; stosl \n\t"
427
        : "=&D" (u0), "=&a" (u1), "=&c" (u2)
428
        : "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, dwords))
429
        : "memory"
430
    );
431
#else
432
    size_t _n = (dwords + 3) / 4;
433
    Uint32 *_p = SDL_static_cast(Uint32 *, dst);
434
    Uint32 _val = (val);
435
    if (dwords == 0)
436
        return;
437
    switch (dwords % 4)
438
    {
439
        case 0: do {    *_p++ = _val;   /* fallthrough */
440
        case 3:         *_p++ = _val;   /* fallthrough */
441
        case 2:         *_p++ = _val;   /* fallthrough */
442
        case 1:         *_p++ = _val;   /* fallthrough */
443
        } while ( --_n );
444
    }
445
#endif
446
}
447
 
448
 
449
extern DECLSPEC void *SDLCALL SDL_memcpy(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
450
 
451
extern DECLSPEC void *SDLCALL SDL_memmove(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
452
extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
453
 
454
extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t *wstr);
455
extern DECLSPEC size_t SDLCALL SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
456
extern DECLSPEC size_t SDLCALL SDL_wcslcat(SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
457
extern DECLSPEC int SDLCALL SDL_wcscmp(const wchar_t *str1, const wchar_t *str2);
458
 
459
extern DECLSPEC size_t SDLCALL SDL_strlen(const char *str);
460
extern DECLSPEC size_t SDLCALL SDL_strlcpy(SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
461
extern DECLSPEC size_t SDLCALL SDL_utf8strlcpy(SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes);
462
extern DECLSPEC size_t SDLCALL SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
463
extern DECLSPEC char *SDLCALL SDL_strdup(const char *str);
464
extern DECLSPEC char *SDLCALL SDL_strrev(char *str);
465
extern DECLSPEC char *SDLCALL SDL_strupr(char *str);
466
extern DECLSPEC char *SDLCALL SDL_strlwr(char *str);
467
extern DECLSPEC char *SDLCALL SDL_strchr(const char *str, int c);
468
extern DECLSPEC char *SDLCALL SDL_strrchr(const char *str, int c);
469
extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack, const char *needle);
470
extern DECLSPEC size_t SDLCALL SDL_utf8strlen(const char *str);
471
 
472
extern DECLSPEC char *SDLCALL SDL_itoa(int value, char *str, int radix);
473
extern DECLSPEC char *SDLCALL SDL_uitoa(unsigned int value, char *str, int radix);
474
extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *str, int radix);
475
extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *str, int radix);
476
extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *str, int radix);
477
extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *str, int radix);
478
 
479
extern DECLSPEC int SDLCALL SDL_atoi(const char *str);
480
extern DECLSPEC double SDLCALL SDL_atof(const char *str);
481
extern DECLSPEC long SDLCALL SDL_strtol(const char *str, char **endp, int base);
482
extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *str, char **endp, int base);
483
extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *str, char **endp, int base);
484
extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *str, char **endp, int base);
485
extern DECLSPEC double SDLCALL SDL_strtod(const char *str, char **endp);
486
 
487
extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
488
extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
489
extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
490
extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t len);
491
 
492
extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, ...) SDL_SCANF_VARARG_FUNC(2);
493
extern DECLSPEC int SDLCALL SDL_vsscanf(const char *text, const char *fmt, va_list ap);
494
extern DECLSPEC int SDLCALL SDL_snprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, SDL_PRINTF_FORMAT_STRING const char *fmt, ... ) SDL_PRINTF_VARARG_FUNC(3);
495
extern DECLSPEC int SDLCALL SDL_vsnprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, const char *fmt, va_list ap);
496
 
497
#ifndef HAVE_M_PI
498
#ifndef M_PI
499
#define M_PI    3.14159265358979323846264338327950288   /**< pi */
500
#endif
501
#endif
502
 
503
extern DECLSPEC double SDLCALL SDL_acos(double x);
504
extern DECLSPEC double SDLCALL SDL_asin(double x);
505
extern DECLSPEC double SDLCALL SDL_atan(double x);
506
extern DECLSPEC double SDLCALL SDL_atan2(double x, double y);
507
extern DECLSPEC double SDLCALL SDL_ceil(double x);
508
extern DECLSPEC double SDLCALL SDL_copysign(double x, double y);
509
extern DECLSPEC double SDLCALL SDL_cos(double x);
510
extern DECLSPEC float SDLCALL SDL_cosf(float x);
511
extern DECLSPEC double SDLCALL SDL_fabs(double x);
512
extern DECLSPEC double SDLCALL SDL_floor(double x);
513
extern DECLSPEC double SDLCALL SDL_log(double x);
514
extern DECLSPEC double SDLCALL SDL_pow(double x, double y);
515
extern DECLSPEC double SDLCALL SDL_scalbn(double x, int n);
516
extern DECLSPEC double SDLCALL SDL_sin(double x);
517
extern DECLSPEC float SDLCALL SDL_sinf(float x);
518
extern DECLSPEC double SDLCALL SDL_sqrt(double x);
519
extern DECLSPEC float SDLCALL SDL_sqrtf(float x);
520
extern DECLSPEC double SDLCALL SDL_tan(double x);
521
extern DECLSPEC float SDLCALL SDL_tanf(float x);
522
 
523
/* The SDL implementation of iconv() returns these error codes */
524
#define SDL_ICONV_ERROR     (size_t)-1
525
#define SDL_ICONV_E2BIG     (size_t)-2
526
#define SDL_ICONV_EILSEQ    (size_t)-3
527
#define SDL_ICONV_EINVAL    (size_t)-4
528
 
529
/* SDL_iconv_* are now always real symbols/types, not macros or inlined. */
530
typedef struct _SDL_iconv_t *SDL_iconv_t;
531
extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
532
                                                   const char *fromcode);
533
extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
534
extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
535
                                         size_t * inbytesleft, char **outbuf,
536
                                         size_t * outbytesleft);
537
/**
538
 *  This function converts a string between encodings in one pass, returning a
539
 *  string that must be freed with SDL_free() or NULL on error.
540
 */
541
extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
542
                                               const char *fromcode,
543
                                               const char *inbuf,
544
                                               size_t inbytesleft);
545
#define SDL_iconv_utf8_locale(S)    SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
546
#define SDL_iconv_utf8_ucs2(S)      (Uint16 *)SDL_iconv_string("UCS-2-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
547
#define SDL_iconv_utf8_ucs4(S)      (Uint32 *)SDL_iconv_string("UCS-4-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
548
 
549
/* force builds using Clang's static analysis tools to use literal C runtime
550
   here, since there are possibly tests that are ineffective otherwise. */
551
#if defined(__clang_analyzer__) && !defined(SDL_DISABLE_ANALYZE_MACROS)
552
#define SDL_malloc malloc
553
#define SDL_calloc calloc
554
#define SDL_realloc realloc
555
#define SDL_free free
556
#define SDL_memset memset
557
#define SDL_memcpy memcpy
558
#define SDL_memmove memmove
559
#define SDL_memcmp memcmp
560
#define SDL_strlen strlen
561
#define SDL_strlcpy strlcpy
562
#define SDL_strlcat strlcat
563
#define SDL_strdup strdup
564
#define SDL_strchr strchr
565
#define SDL_strrchr strrchr
566
#define SDL_strstr strstr
567
#define SDL_strcmp strcmp
568
#define SDL_strncmp strncmp
569
#define SDL_strcasecmp strcasecmp
570
#define SDL_strncasecmp strncasecmp
571
#define SDL_sscanf sscanf
572
#define SDL_vsscanf vsscanf
573
#define SDL_snprintf snprintf
574
#define SDL_vsnprintf vsnprintf
575
#endif
576
 
577
SDL_FORCE_INLINE void *SDL_memcpy4(SDL_OUT_BYTECAP(dwords*4) void *dst, SDL_IN_BYTECAP(dwords*4) const void *src, size_t dwords)
578
{
579
    return SDL_memcpy(dst, src, dwords * 4);
580
}
581
 
582
/* Ends C function definitions when using C++ */
583
#ifdef __cplusplus
584
}
585
#endif
586
#include "close_code.h"
587
 
588
#endif /* SDL_stdinc_h_ */
589
 
590
/* vi: set ts=4 sw=4 expandtab: */