1/*
2 Simple DirectMedia Layer
3 Copyright (C) 1997-2021 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 __APPLE__
34#ifndef _DARWIN_C_SOURCE
35#define _DARWIN_C_SOURCE 1 /* for memset_pattern4() */
36#endif
37#endif
38
39#ifdef HAVE_SYS_TYPES_H
40#include <sys/types.h>
41#endif
42#ifdef HAVE_STDIO_H
43#include <stdio.h>
44#endif
45#if defined(STDC_HEADERS)
46# include <stdlib.h>
47# include <stddef.h>
48# include <stdarg.h>
49#else
50# if defined(HAVE_STDLIB_H)
51# include <stdlib.h>
52# elif defined(HAVE_MALLOC_H)
53# include <malloc.h>
54# endif
55# if defined(HAVE_STDDEF_H)
56# include <stddef.h>
57# endif
58# if defined(HAVE_STDARG_H)
59# include <stdarg.h>
60# endif
61#endif
62#ifdef HAVE_STRING_H
63# if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
64# include <memory.h>
65# endif
66# include <string.h>
67#endif
68#ifdef HAVE_STRINGS_H
69# include <strings.h>
70#endif
71#ifdef HAVE_WCHAR_H
72# include <wchar.h>
73#endif
74#if defined(HAVE_INTTYPES_H)
75# include <inttypes.h>
76#elif defined(HAVE_STDINT_H)
77# include <stdint.h>
78#endif
79#ifdef HAVE_CTYPE_H
80# include <ctype.h>
81#endif
82#ifdef HAVE_MATH_H
83# if defined(__WINRT__)
84/* Defining _USE_MATH_DEFINES is required to get M_PI to be defined on
85 WinRT. See http://msdn.microsoft.com/en-us/library/4hwaceh6.aspx
86 for more information.
87*/
88# define _USE_MATH_DEFINES
89# endif
90# include <math.h>
91#endif
92#ifdef HAVE_FLOAT_H
93# include <float.h>
94#endif
95#if defined(HAVE_ALLOCA) && !defined(alloca)
96# if defined(HAVE_ALLOCA_H)
97# include <alloca.h>
98# elif defined(__GNUC__)
99# define alloca __builtin_alloca
100# elif defined(_MSC_VER)
101# include <malloc.h>
102# define alloca _alloca
103# elif defined(__WATCOMC__)
104# include <malloc.h>
105# elif defined(__BORLANDC__)
106# include <malloc.h>
107# elif defined(__DMC__)
108# include <stdlib.h>
109# elif defined(__AIX__)
110#pragma alloca
111# elif defined(__MRC__)
112void *alloca(unsigned);
113# else
114char *alloca();
115# endif
116#endif
117
118/**
119 * The number of elements in an array.
120 */
121#define SDL_arraysize(array) (sizeof(array)/sizeof(array[0]))
122#define SDL_TABLESIZE(table) SDL_arraysize(table)
123
124/**
125 * Macro useful for building other macros with strings in them
126 *
127 * e.g. #define LOG_ERROR(X) OutputDebugString(SDL_STRINGIFY_ARG(__FUNCTION__) ": " X "\n")
128 */
129#define SDL_STRINGIFY_ARG(arg) #arg
130
131/**
132 * \name Cast operators
133 *
134 * Use proper C++ casts when compiled as C++ to be compatible with the option
135 * -Wold-style-cast of GCC (and -Werror=old-style-cast in GCC 4.2 and above).
136 */
137/* @{ */
138#ifdef __cplusplus
139#define SDL_reinterpret_cast(type, expression) reinterpret_cast<type>(expression)
140#define SDL_static_cast(type, expression) static_cast<type>(expression)
141#define SDL_const_cast(type, expression) const_cast<type>(expression)
142#else
143#define SDL_reinterpret_cast(type, expression) ((type)(expression))
144#define SDL_static_cast(type, expression) ((type)(expression))
145#define SDL_const_cast(type, expression) ((type)(expression))
146#endif
147/* @} *//* Cast operators */
148
149/* Define a four character code as a Uint32 */
150#define SDL_FOURCC(A, B, C, D) \
151 ((SDL_static_cast(Uint32, SDL_static_cast(Uint8, (A))) << 0) | \
152 (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (B))) << 8) | \
153 (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (C))) << 16) | \
154 (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (D))) << 24))
155
156/**
157 * \name Basic data types
158 */
159/* @{ */
160
161#ifdef __CC_ARM
162/* ARM's compiler throws warnings if we use an enum: like "SDL_bool x = a < b;" */
163#define SDL_FALSE 0
164#define SDL_TRUE 1
165typedef int SDL_bool;
166#else
167typedef enum
168{
169 SDL_FALSE = 0,
170 SDL_TRUE = 1
171} SDL_bool;
172#endif
173
174/**
175 * \brief A signed 8-bit integer type.
176 */
177#define SDL_MAX_SINT8 ((Sint8)0x7F) /* 127 */
178#define SDL_MIN_SINT8 ((Sint8)(~0x7F)) /* -128 */
179typedef int8_t Sint8;
180/**
181 * \brief An unsigned 8-bit integer type.
182 */
183#define SDL_MAX_UINT8 ((Uint8)0xFF) /* 255 */
184#define SDL_MIN_UINT8 ((Uint8)0x00) /* 0 */
185typedef uint8_t Uint8;
186/**
187 * \brief A signed 16-bit integer type.
188 */
189#define SDL_MAX_SINT16 ((Sint16)0x7FFF) /* 32767 */
190#define SDL_MIN_SINT16 ((Sint16)(~0x7FFF)) /* -32768 */
191typedef int16_t Sint16;
192/**
193 * \brief An unsigned 16-bit integer type.
194 */
195#define SDL_MAX_UINT16 ((Uint16)0xFFFF) /* 65535 */
196#define SDL_MIN_UINT16 ((Uint16)0x0000) /* 0 */
197typedef uint16_t Uint16;
198/**
199 * \brief A signed 32-bit integer type.
200 */
201#define SDL_MAX_SINT32 ((Sint32)0x7FFFFFFF) /* 2147483647 */
202#define SDL_MIN_SINT32 ((Sint32)(~0x7FFFFFFF)) /* -2147483648 */
203typedef int32_t Sint32;
204/**
205 * \brief An unsigned 32-bit integer type.
206 */
207#define SDL_MAX_UINT32 ((Uint32)0xFFFFFFFFu) /* 4294967295 */
208#define SDL_MIN_UINT32 ((Uint32)0x00000000) /* 0 */
209typedef uint32_t Uint32;
210
211/**
212 * \brief A signed 64-bit integer type.
213 */
214#define SDL_MAX_SINT64 ((Sint64)0x7FFFFFFFFFFFFFFFll) /* 9223372036854775807 */
215#define SDL_MIN_SINT64 ((Sint64)(~0x7FFFFFFFFFFFFFFFll)) /* -9223372036854775808 */
216typedef int64_t Sint64;
217/**
218 * \brief An unsigned 64-bit integer type.
219 */
220#define SDL_MAX_UINT64 ((Uint64)0xFFFFFFFFFFFFFFFFull) /* 18446744073709551615 */
221#define SDL_MIN_UINT64 ((Uint64)(0x0000000000000000ull)) /* 0 */
222typedef uint64_t Uint64;
223
224/* @} *//* Basic data types */
225
226/* Make sure we have macros for printing width-based integers.
227 * <stdint.h> should define these but this is not true all platforms.
228 * (for example win32) */
229#ifndef SDL_PRIs64
230#ifdef PRIs64
231#define SDL_PRIs64 PRIs64
232#elif defined(__WIN32__)
233#define SDL_PRIs64 "I64d"
234#elif defined(__LINUX__) && defined(__LP64__)
235#define SDL_PRIs64 "ld"
236#else
237#define SDL_PRIs64 "lld"
238#endif
239#endif
240#ifndef SDL_PRIu64
241#ifdef PRIu64
242#define SDL_PRIu64 PRIu64
243#elif defined(__WIN32__)
244#define SDL_PRIu64 "I64u"
245#elif defined(__LINUX__) && defined(__LP64__)
246#define SDL_PRIu64 "lu"
247#else
248#define SDL_PRIu64 "llu"
249#endif
250#endif
251#ifndef SDL_PRIx64
252#ifdef PRIx64
253#define SDL_PRIx64 PRIx64
254#elif defined(__WIN32__)
255#define SDL_PRIx64 "I64x"
256#elif defined(__LINUX__) && defined(__LP64__)
257#define SDL_PRIx64 "lx"
258#else
259#define SDL_PRIx64 "llx"
260#endif
261#endif
262#ifndef SDL_PRIX64
263#ifdef PRIX64
264#define SDL_PRIX64 PRIX64
265#elif defined(__WIN32__)
266#define SDL_PRIX64 "I64X"
267#elif defined(__LINUX__) && defined(__LP64__)
268#define SDL_PRIX64 "lX"
269#else
270#define SDL_PRIX64 "llX"
271#endif
272#endif
273#ifndef SDL_PRIs32
274#ifdef PRId32
275#define SDL_PRIs32 PRId32
276#else
277#define SDL_PRIs32 "d"
278#endif
279#endif
280#ifndef SDL_PRIu32
281#ifdef PRIu32
282#define SDL_PRIu32 PRIu32
283#else
284#define SDL_PRIu32 "u"
285#endif
286#endif
287#ifndef SDL_PRIx32
288#ifdef PRIx32
289#define SDL_PRIx32 PRIx32
290#else
291#define SDL_PRIx32 "x"
292#endif
293#endif
294#ifndef SDL_PRIX32
295#ifdef PRIX32
296#define SDL_PRIX32 PRIX32
297#else
298#define SDL_PRIX32 "X"
299#endif
300#endif
301
302/* Annotations to help code analysis tools */
303#ifdef SDL_DISABLE_ANALYZE_MACROS
304#define SDL_IN_BYTECAP(x)
305#define SDL_INOUT_Z_CAP(x)
306#define SDL_OUT_Z_CAP(x)
307#define SDL_OUT_CAP(x)
308#define SDL_OUT_BYTECAP(x)
309#define SDL_OUT_Z_BYTECAP(x)
310#define SDL_PRINTF_FORMAT_STRING
311#define SDL_SCANF_FORMAT_STRING
312#define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
313#define SDL_SCANF_VARARG_FUNC( fmtargnumber )
314#else
315#if defined(_MSC_VER) && (_MSC_VER >= 1600) /* VS 2010 and above */
316#include <sal.h>
317
318#define SDL_IN_BYTECAP(x) _In_bytecount_(x)
319#define SDL_INOUT_Z_CAP(x) _Inout_z_cap_(x)
320#define SDL_OUT_Z_CAP(x) _Out_z_cap_(x)
321#define SDL_OUT_CAP(x) _Out_cap_(x)
322#define SDL_OUT_BYTECAP(x) _Out_bytecap_(x)
323#define SDL_OUT_Z_BYTECAP(x) _Out_z_bytecap_(x)
324
325#define SDL_PRINTF_FORMAT_STRING _Printf_format_string_
326#define SDL_SCANF_FORMAT_STRING _Scanf_format_string_impl_
327#else
328#define SDL_IN_BYTECAP(x)
329#define SDL_INOUT_Z_CAP(x)
330#define SDL_OUT_Z_CAP(x)
331#define SDL_OUT_CAP(x)
332#define SDL_OUT_BYTECAP(x)
333#define SDL_OUT_Z_BYTECAP(x)
334#define SDL_PRINTF_FORMAT_STRING
335#define SDL_SCANF_FORMAT_STRING
336#endif
337#if defined(__GNUC__)
338#define SDL_PRINTF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __printf__, fmtargnumber, fmtargnumber+1 )))
339#define SDL_SCANF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __scanf__, fmtargnumber, fmtargnumber+1 )))
340#else
341#define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
342#define SDL_SCANF_VARARG_FUNC( fmtargnumber )
343#endif
344#endif /* SDL_DISABLE_ANALYZE_MACROS */
345
346#define SDL_COMPILE_TIME_ASSERT(name, x) \
347 typedef int SDL_compile_time_assert_ ## name[(x) * 2 - 1]
348/** \cond */
349#ifndef DOXYGEN_SHOULD_IGNORE_THIS
350SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
351SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
352SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
353SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
354SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
355SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
356SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
357SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
358#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
359/** \endcond */
360
361/* Check to make sure enums are the size of ints, for structure packing.
362 For both Watcom C/C++ and Borland C/C++ the compiler option that makes
363 enums having the size of an int must be enabled.
364 This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
365*/
366
367/** \cond */
368#ifndef DOXYGEN_SHOULD_IGNORE_THIS
369#if !defined(__ANDROID__) && !defined(__VITA__)
370 /* TODO: include/SDL_stdinc.h:174: error: size of array 'SDL_dummy_enum' is negative */
371typedef enum
372{
373 DUMMY_ENUM_VALUE
374} SDL_DUMMY_ENUM;
375
376SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
377#endif
378#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
379/** \endcond */
380
381#include "begin_code.h"
382/* Set up for C function definitions, even when using C++ */
383#ifdef __cplusplus
384extern "C" {
385#endif
386
387#ifdef HAVE_ALLOCA
388#define SDL_stack_alloc(type, count) (type*)alloca(sizeof(type)*(count))
389#define SDL_stack_free(data)
390#else
391#define SDL_stack_alloc(type, count) (type*)SDL_malloc(sizeof(type)*(count))
392#define SDL_stack_free(data) SDL_free(data)
393#endif
394
395extern DECLSPEC void *SDLCALL SDL_malloc(size_t size);
396extern DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size);
397extern DECLSPEC void *SDLCALL SDL_realloc(void *mem, size_t size);
398extern DECLSPEC void SDLCALL SDL_free(void *mem);
399
400typedef void *(SDLCALL *SDL_malloc_func)(size_t size);
401typedef void *(SDLCALL *SDL_calloc_func)(size_t nmemb, size_t size);
402typedef void *(SDLCALL *SDL_realloc_func)(void *mem, size_t size);
403typedef void (SDLCALL *SDL_free_func)(void *mem);
404
405/**
406 * \brief Get the current set of SDL memory functions
407 */
408extern DECLSPEC void SDLCALL SDL_GetMemoryFunctions(SDL_malloc_func *malloc_func,
409 SDL_calloc_func *calloc_func,
410 SDL_realloc_func *realloc_func,
411 SDL_free_func *free_func);
412
413/**
414 * \brief Replace SDL's memory allocation functions with a custom set
415 *
416 * \note If you are replacing SDL's memory functions, you should call
417 * SDL_GetNumAllocations() and be very careful if it returns non-zero.
418 * That means that your free function will be called with memory
419 * allocated by the previous memory allocation functions.
420 */
421extern DECLSPEC int SDLCALL SDL_SetMemoryFunctions(SDL_malloc_func malloc_func,
422 SDL_calloc_func calloc_func,
423 SDL_realloc_func realloc_func,
424 SDL_free_func free_func);
425
426/**
427 * \brief Get the number of outstanding (unfreed) allocations
428 */
429extern DECLSPEC int SDLCALL SDL_GetNumAllocations(void);
430
431extern DECLSPEC char *SDLCALL SDL_getenv(const char *name);
432extern DECLSPEC int SDLCALL SDL_setenv(const char *name, const char *value, int overwrite);
433
434extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, int (*compare) (const void *, const void *));
435
436extern DECLSPEC int SDLCALL SDL_abs(int x);
437
438/* !!! FIXME: these have side effects. You probably shouldn't use them. */
439/* !!! FIXME: Maybe we do forceinline functions of SDL_mini, SDL_minf, etc? */
440#define SDL_min(x, y) (((x) < (y)) ? (x) : (y))
441#define SDL_max(x, y) (((x) > (y)) ? (x) : (y))
442
443extern DECLSPEC int SDLCALL SDL_isalpha(int x);
444extern DECLSPEC int SDLCALL SDL_isalnum(int x);
445extern DECLSPEC int SDLCALL SDL_isblank(int x);
446extern DECLSPEC int SDLCALL SDL_iscntrl(int x);
447extern DECLSPEC int SDLCALL SDL_isdigit(int x);
448extern DECLSPEC int SDLCALL SDL_isxdigit(int x);
449extern DECLSPEC int SDLCALL SDL_ispunct(int x);
450extern DECLSPEC int SDLCALL SDL_isspace(int x);
451extern DECLSPEC int SDLCALL SDL_isupper(int x);
452extern DECLSPEC int SDLCALL SDL_islower(int x);
453extern DECLSPEC int SDLCALL SDL_isprint(int x);
454extern DECLSPEC int SDLCALL SDL_isgraph(int x);
455extern DECLSPEC int SDLCALL SDL_toupper(int x);
456extern DECLSPEC int SDLCALL SDL_tolower(int x);
457
458extern DECLSPEC Uint32 SDLCALL SDL_crc32(Uint32 crc, const void *data, size_t len);
459
460extern DECLSPEC void *SDLCALL SDL_memset(SDL_OUT_BYTECAP(len) void *dst, int c, size_t len);
461
462#define SDL_zero(x) SDL_memset(&(x), 0, sizeof((x)))
463#define SDL_zerop(x) SDL_memset((x), 0, sizeof(*(x)))
464#define SDL_zeroa(x) SDL_memset((x), 0, sizeof((x)))
465
466/* Note that memset() is a byte assignment and this is a 32-bit assignment, so they're not directly equivalent. */
467SDL_FORCE_INLINE void SDL_memset4(void *dst, Uint32 val, size_t dwords)
468{
469#ifdef __APPLE__
470 memset_pattern4(dst, &val, dwords * 4);
471#elif defined(__GNUC__) && defined(__i386__)
472 int u0, u1, u2;
473 __asm__ __volatile__ (
474 "cld \n\t"
475 "rep ; stosl \n\t"
476 : "=&D" (u0), "=&a" (u1), "=&c" (u2)
477 : "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, dwords))
478 : "memory"
479 );
480#else
481 size_t _n = (dwords + 3) / 4;
482 Uint32 *_p = SDL_static_cast(Uint32 *, dst);
483 Uint32 _val = (val);
484 if (dwords == 0)
485 return;
486 switch (dwords % 4)
487 {
488 case 0: do { *_p++ = _val; /* fallthrough */
489 case 3: *_p++ = _val; /* fallthrough */
490 case 2: *_p++ = _val; /* fallthrough */
491 case 1: *_p++ = _val; /* fallthrough */
492 } while ( --_n );
493 }
494#endif
495}
496
497extern DECLSPEC void *SDLCALL SDL_memcpy(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
498
499extern DECLSPEC void *SDLCALL SDL_memmove(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
500extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
501
502extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t *wstr);
503extern DECLSPEC size_t SDLCALL SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
504extern DECLSPEC size_t SDLCALL SDL_wcslcat(SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
505extern DECLSPEC wchar_t *SDLCALL SDL_wcsdup(const wchar_t *wstr);
506extern DECLSPEC wchar_t *SDLCALL SDL_wcsstr(const wchar_t *haystack, const wchar_t *needle);
507
508extern DECLSPEC int SDLCALL SDL_wcscmp(const wchar_t *str1, const wchar_t *str2);
509extern DECLSPEC int SDLCALL SDL_wcsncmp(const wchar_t *str1, const wchar_t *str2, size_t maxlen);
510extern DECLSPEC int SDLCALL SDL_wcscasecmp(const wchar_t *str1, const wchar_t *str2);
511extern DECLSPEC int SDLCALL SDL_wcsncasecmp(const wchar_t *str1, const wchar_t *str2, size_t len);
512
513extern DECLSPEC size_t SDLCALL SDL_strlen(const char *str);
514extern DECLSPEC size_t SDLCALL SDL_strlcpy(SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
515extern DECLSPEC size_t SDLCALL SDL_utf8strlcpy(SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes);
516extern DECLSPEC size_t SDLCALL SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
517extern DECLSPEC char *SDLCALL SDL_strdup(const char *str);
518extern DECLSPEC char *SDLCALL SDL_strrev(char *str);
519extern DECLSPEC char *SDLCALL SDL_strupr(char *str);
520extern DECLSPEC char *SDLCALL SDL_strlwr(char *str);
521extern DECLSPEC char *SDLCALL SDL_strchr(const char *str, int c);
522extern DECLSPEC char *SDLCALL SDL_strrchr(const char *str, int c);
523extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack, const char *needle);
524extern DECLSPEC char *SDLCALL SDL_strtokr(char *s1, const char *s2, char **saveptr);
525extern DECLSPEC size_t SDLCALL SDL_utf8strlen(const char *str);
526
527extern DECLSPEC char *SDLCALL SDL_itoa(int value, char *str, int radix);
528extern DECLSPEC char *SDLCALL SDL_uitoa(unsigned int value, char *str, int radix);
529extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *str, int radix);
530extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *str, int radix);
531extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *str, int radix);
532extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *str, int radix);
533
534extern DECLSPEC int SDLCALL SDL_atoi(const char *str);
535extern DECLSPEC double SDLCALL SDL_atof(const char *str);
536extern DECLSPEC long SDLCALL SDL_strtol(const char *str, char **endp, int base);
537extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *str, char **endp, int base);
538extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *str, char **endp, int base);
539extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *str, char **endp, int base);
540extern DECLSPEC double SDLCALL SDL_strtod(const char *str, char **endp);
541
542extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
543extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
544extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
545extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t len);
546
547extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, ...) SDL_SCANF_VARARG_FUNC(2);
548extern DECLSPEC int SDLCALL SDL_vsscanf(const char *text, const char *fmt, va_list ap);
549extern 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);
550extern DECLSPEC int SDLCALL SDL_vsnprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, const char *fmt, va_list ap);
551
552#ifndef HAVE_M_PI
553#ifndef M_PI
554#define M_PI 3.14159265358979323846264338327950288 /**< pi */
555#endif
556#endif
557
558extern DECLSPEC double SDLCALL SDL_acos(double x);
559extern DECLSPEC float SDLCALL SDL_acosf(float x);
560extern DECLSPEC double SDLCALL SDL_asin(double x);
561extern DECLSPEC float SDLCALL SDL_asinf(float x);
562extern DECLSPEC double SDLCALL SDL_atan(double x);
563extern DECLSPEC float SDLCALL SDL_atanf(float x);
564extern DECLSPEC double SDLCALL SDL_atan2(double x, double y);
565extern DECLSPEC float SDLCALL SDL_atan2f(float x, float y);
566extern DECLSPEC double SDLCALL SDL_ceil(double x);
567extern DECLSPEC float SDLCALL SDL_ceilf(float x);
568extern DECLSPEC double SDLCALL SDL_copysign(double x, double y);
569extern DECLSPEC float SDLCALL SDL_copysignf(float x, float y);
570extern DECLSPEC double SDLCALL SDL_cos(double x);
571extern DECLSPEC float SDLCALL SDL_cosf(float x);
572extern DECLSPEC double SDLCALL SDL_exp(double x);
573extern DECLSPEC float SDLCALL SDL_expf(float x);
574extern DECLSPEC double SDLCALL SDL_fabs(double x);
575extern DECLSPEC float SDLCALL SDL_fabsf(float x);
576extern DECLSPEC double SDLCALL SDL_floor(double x);
577extern DECLSPEC float SDLCALL SDL_floorf(float x);
578extern DECLSPEC double SDLCALL SDL_trunc(double x);
579extern DECLSPEC float SDLCALL SDL_truncf(float x);
580extern DECLSPEC double SDLCALL SDL_fmod(double x, double y);
581extern DECLSPEC float SDLCALL SDL_fmodf(float x, float y);
582extern DECLSPEC double SDLCALL SDL_log(double x);
583extern DECLSPEC float SDLCALL SDL_logf(float x);
584extern DECLSPEC double SDLCALL SDL_log10(double x);
585extern DECLSPEC float SDLCALL SDL_log10f(float x);
586extern DECLSPEC double SDLCALL SDL_pow(double x, double y);
587extern DECLSPEC float SDLCALL SDL_powf(float x, float y);
588extern DECLSPEC double SDLCALL SDL_round(double x);
589extern DECLSPEC float SDLCALL SDL_roundf(float x);
590extern DECLSPEC long SDLCALL SDL_lround(double x);
591extern DECLSPEC long SDLCALL SDL_lroundf(float x);
592extern DECLSPEC double SDLCALL SDL_scalbn(double x, int n);
593extern DECLSPEC float SDLCALL SDL_scalbnf(float x, int n);
594extern DECLSPEC double SDLCALL SDL_sin(double x);
595extern DECLSPEC float SDLCALL SDL_sinf(float x);
596extern DECLSPEC double SDLCALL SDL_sqrt(double x);
597extern DECLSPEC float SDLCALL SDL_sqrtf(float x);
598extern DECLSPEC double SDLCALL SDL_tan(double x);
599extern DECLSPEC float SDLCALL SDL_tanf(float x);
600
601/* The SDL implementation of iconv() returns these error codes */
602#define SDL_ICONV_ERROR (size_t)-1
603#define SDL_ICONV_E2BIG (size_t)-2
604#define SDL_ICONV_EILSEQ (size_t)-3
605#define SDL_ICONV_EINVAL (size_t)-4
606
607/* SDL_iconv_* are now always real symbols/types, not macros or inlined. */
608typedef struct _SDL_iconv_t *SDL_iconv_t;
609extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
610 const char *fromcode);
611extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
612extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
613 size_t * inbytesleft, char **outbuf,
614 size_t * outbytesleft);
615/**
616 * This function converts a string between encodings in one pass, returning a
617 * string that must be freed with SDL_free() or NULL on error.
618 */
619extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
620 const char *fromcode,
621 const char *inbuf,
622 size_t inbytesleft);
623#define SDL_iconv_utf8_locale(S) SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
624#define SDL_iconv_utf8_ucs2(S) (Uint16 *)SDL_iconv_string("UCS-2-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
625#define SDL_iconv_utf8_ucs4(S) (Uint32 *)SDL_iconv_string("UCS-4-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
626
627/* force builds using Clang's static analysis tools to use literal C runtime
628 here, since there are possibly tests that are ineffective otherwise. */
629#if defined(__clang_analyzer__) && !defined(SDL_DISABLE_ANALYZE_MACROS)
630
631/* The analyzer knows about strlcpy even when the system doesn't provide it */
632#ifndef HAVE_STRLCPY
633size_t strlcpy(char* dst, const char* src, size_t size);
634#endif
635
636/* The analyzer knows about strlcat even when the system doesn't provide it */
637#ifndef HAVE_STRLCAT
638size_t strlcat(char* dst, const char* src, size_t size);
639#endif
640
641#define SDL_malloc malloc
642#define SDL_calloc calloc
643#define SDL_realloc realloc
644#define SDL_free free
645#define SDL_memset memset
646#define SDL_memcpy memcpy
647#define SDL_memmove memmove
648#define SDL_memcmp memcmp
649#define SDL_strlcpy strlcpy
650#define SDL_strlcat strlcat
651#define SDL_strlen strlen
652#define SDL_wcslen wcslen
653#define SDL_wcslcpy wcslcpy
654#define SDL_wcslcat wcslcat
655#define SDL_strdup strdup
656#define SDL_wcsdup wcsdup
657#define SDL_strchr strchr
658#define SDL_strrchr strrchr
659#define SDL_strstr strstr
660#define SDL_wcsstr wcsstr
661#define SDL_strtokr strtok_r
662#define SDL_strcmp strcmp
663#define SDL_wcscmp wcscmp
664#define SDL_strncmp strncmp
665#define SDL_wcsncmp wcsncmp
666#define SDL_strcasecmp strcasecmp
667#define SDL_strncasecmp strncasecmp
668#define SDL_sscanf sscanf
669#define SDL_vsscanf vsscanf
670#define SDL_snprintf snprintf
671#define SDL_vsnprintf vsnprintf
672#endif
673
674SDL_FORCE_INLINE void *SDL_memcpy4(SDL_OUT_BYTECAP(dwords*4) void *dst, SDL_IN_BYTECAP(dwords*4) const void *src, size_t dwords)
675{
676 return SDL_memcpy(dst, src, dwords * 4);
677}
678
679/* Ends C function definitions when using C++ */
680#ifdef __cplusplus
681}
682#endif
683#include "close_code.h"
684
685#endif /* SDL_stdinc_h_ */
686
687/* vi: set ts=4 sw=4 expandtab: */
688