1/*
2 Simple DirectMedia Layer
3 Copyright (C) 1997-2018 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
137typedef int SDL_bool;
138#else
139typedef 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 */
151typedef 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 */
157typedef 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 */
163typedef 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 */
169typedef 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 */
175typedef 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 */
181typedef 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 */
188typedef 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 */
194typedef 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
294SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
295SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
296SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
297SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
298SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
299SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
300SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
301SDL_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 */
315typedef enum
316{
317 DUMMY_ENUM_VALUE
318} SDL_DUMMY_ENUM;
319
320SDL_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
328extern "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__)
348void *alloca(unsigned);
349# else
350char *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
361extern DECLSPEC void *SDLCALL SDL_malloc(size_t size);
362extern DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size);
363extern DECLSPEC void *SDLCALL SDL_realloc(void *mem, size_t size);
364extern DECLSPEC void SDLCALL SDL_free(void *mem);
365
366typedef void *(SDLCALL *SDL_malloc_func)(size_t size);
367typedef void *(SDLCALL *SDL_calloc_func)(size_t nmemb, size_t size);
368typedef void *(SDLCALL *SDL_realloc_func)(void *mem, size_t size);
369typedef void (SDLCALL *SDL_free_func)(void *mem);
370
371/**
372 * \brief Get the current set of SDL memory functions
373 */
374extern 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 */
387extern 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 */
395extern DECLSPEC int SDLCALL SDL_GetNumAllocations(void);
396
397extern DECLSPEC char *SDLCALL SDL_getenv(const char *name);
398extern DECLSPEC int SDLCALL SDL_setenv(const char *name, const char *value, int overwrite);
399
400extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, int (*compare) (const void *, const void *));
401
402extern 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
409extern DECLSPEC int SDLCALL SDL_isdigit(int x);
410extern DECLSPEC int SDLCALL SDL_isspace(int x);
411extern DECLSPEC int SDLCALL SDL_toupper(int x);
412extern DECLSPEC int SDLCALL SDL_tolower(int x);
413
414extern 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. */
420SDL_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
449extern DECLSPEC void *SDLCALL SDL_memcpy(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
450
451extern DECLSPEC void *SDLCALL SDL_memmove(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
452extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
453
454extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t *wstr);
455extern DECLSPEC size_t SDLCALL SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
456extern DECLSPEC size_t SDLCALL SDL_wcslcat(SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
457extern DECLSPEC int SDLCALL SDL_wcscmp(const wchar_t *str1, const wchar_t *str2);
458
459extern DECLSPEC size_t SDLCALL SDL_strlen(const char *str);
460extern DECLSPEC size_t SDLCALL SDL_strlcpy(SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
461extern DECLSPEC size_t SDLCALL SDL_utf8strlcpy(SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes);
462extern DECLSPEC size_t SDLCALL SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
463extern DECLSPEC char *SDLCALL SDL_strdup(const char *str);
464extern DECLSPEC char *SDLCALL SDL_strrev(char *str);
465extern DECLSPEC char *SDLCALL SDL_strupr(char *str);
466extern DECLSPEC char *SDLCALL SDL_strlwr(char *str);
467extern DECLSPEC char *SDLCALL SDL_strchr(const char *str, int c);
468extern DECLSPEC char *SDLCALL SDL_strrchr(const char *str, int c);
469extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack, const char *needle);
470extern DECLSPEC size_t SDLCALL SDL_utf8strlen(const char *str);
471
472extern DECLSPEC char *SDLCALL SDL_itoa(int value, char *str, int radix);
473extern DECLSPEC char *SDLCALL SDL_uitoa(unsigned int value, char *str, int radix);
474extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *str, int radix);
475extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *str, int radix);
476extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *str, int radix);
477extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *str, int radix);
478
479extern DECLSPEC int SDLCALL SDL_atoi(const char *str);
480extern DECLSPEC double SDLCALL SDL_atof(const char *str);
481extern DECLSPEC long SDLCALL SDL_strtol(const char *str, char **endp, int base);
482extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *str, char **endp, int base);
483extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *str, char **endp, int base);
484extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *str, char **endp, int base);
485extern DECLSPEC double SDLCALL SDL_strtod(const char *str, char **endp);
486
487extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
488extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
489extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
490extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t len);
491
492extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, ...) SDL_SCANF_VARARG_FUNC(2);
493extern DECLSPEC int SDLCALL SDL_vsscanf(const char *text, const char *fmt, va_list ap);
494extern 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);
495extern 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
503extern DECLSPEC double SDLCALL SDL_acos(double x);
504extern DECLSPEC float SDLCALL SDL_acosf(float x);
505extern DECLSPEC double SDLCALL SDL_asin(double x);
506extern DECLSPEC float SDLCALL SDL_asinf(float x);
507extern DECLSPEC double SDLCALL SDL_atan(double x);
508extern DECLSPEC float SDLCALL SDL_atanf(float x);
509extern DECLSPEC double SDLCALL SDL_atan2(double x, double y);
510extern DECLSPEC float SDLCALL SDL_atan2f(float x, float y);
511extern DECLSPEC double SDLCALL SDL_ceil(double x);
512extern DECLSPEC float SDLCALL SDL_ceilf(float x);
513extern DECLSPEC double SDLCALL SDL_copysign(double x, double y);
514extern DECLSPEC float SDLCALL SDL_copysignf(float x, float y);
515extern DECLSPEC double SDLCALL SDL_cos(double x);
516extern DECLSPEC float SDLCALL SDL_cosf(float x);
517extern DECLSPEC double SDLCALL SDL_fabs(double x);
518extern DECLSPEC float SDLCALL SDL_fabsf(float x);
519extern DECLSPEC double SDLCALL SDL_floor(double x);
520extern DECLSPEC float SDLCALL SDL_floorf(float x);
521extern DECLSPEC double SDLCALL SDL_fmod(double x, double y);
522extern DECLSPEC float SDLCALL SDL_fmodf(float x, float y);
523extern DECLSPEC double SDLCALL SDL_log(double x);
524extern DECLSPEC float SDLCALL SDL_logf(float x);
525extern DECLSPEC double SDLCALL SDL_log10(double x);
526extern DECLSPEC float SDLCALL SDL_log10f(float x);
527extern DECLSPEC double SDLCALL SDL_pow(double x, double y);
528extern DECLSPEC float SDLCALL SDL_powf(float x, float y);
529extern DECLSPEC double SDLCALL SDL_scalbn(double x, int n);
530extern DECLSPEC float SDLCALL SDL_scalbnf(float x, int n);
531extern DECLSPEC double SDLCALL SDL_sin(double x);
532extern DECLSPEC float SDLCALL SDL_sinf(float x);
533extern DECLSPEC double SDLCALL SDL_sqrt(double x);
534extern DECLSPEC float SDLCALL SDL_sqrtf(float x);
535extern DECLSPEC double SDLCALL SDL_tan(double x);
536extern DECLSPEC float SDLCALL SDL_tanf(float x);
537
538/* The SDL implementation of iconv() returns these error codes */
539#define SDL_ICONV_ERROR (size_t)-1
540#define SDL_ICONV_E2BIG (size_t)-2
541#define SDL_ICONV_EILSEQ (size_t)-3
542#define SDL_ICONV_EINVAL (size_t)-4
543
544/* SDL_iconv_* are now always real symbols/types, not macros or inlined. */
545typedef struct _SDL_iconv_t *SDL_iconv_t;
546extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
547 const char *fromcode);
548extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
549extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf,
550 size_t * inbytesleft, char **outbuf,
551 size_t * outbytesleft);
552/**
553 * This function converts a string between encodings in one pass, returning a
554 * string that must be freed with SDL_free() or NULL on error.
555 */
556extern DECLSPEC char *SDLCALL SDL_iconv_string(const char *tocode,
557 const char *fromcode,
558 const char *inbuf,
559 size_t inbytesleft);
560#define SDL_iconv_utf8_locale(S) SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
561#define SDL_iconv_utf8_ucs2(S) (Uint16 *)SDL_iconv_string("UCS-2-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
562#define SDL_iconv_utf8_ucs4(S) (Uint32 *)SDL_iconv_string("UCS-4-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
563
564/* force builds using Clang's static analysis tools to use literal C runtime
565 here, since there are possibly tests that are ineffective otherwise. */
566#if defined(__clang_analyzer__) && !defined(SDL_DISABLE_ANALYZE_MACROS)
567#define SDL_malloc malloc
568#define SDL_calloc calloc
569#define SDL_realloc realloc
570#define SDL_free free
571#define SDL_memset memset
572#define SDL_memcpy memcpy
573#define SDL_memmove memmove
574#define SDL_memcmp memcmp
575#define SDL_strlen strlen
576#define SDL_strlcpy strlcpy
577#define SDL_strlcat strlcat
578#define SDL_strdup strdup
579#define SDL_strchr strchr
580#define SDL_strrchr strrchr
581#define SDL_strstr strstr
582#define SDL_strcmp strcmp
583#define SDL_strncmp strncmp
584#define SDL_strcasecmp strcasecmp
585#define SDL_strncasecmp strncasecmp
586#define SDL_sscanf sscanf
587#define SDL_vsscanf vsscanf
588#define SDL_snprintf snprintf
589#define SDL_vsnprintf vsnprintf
590#endif
591
592SDL_FORCE_INLINE void *SDL_memcpy4(SDL_OUT_BYTECAP(dwords*4) void *dst, SDL_IN_BYTECAP(dwords*4) const void *src, size_t dwords)
593{
594 return SDL_memcpy(dst, src, dwords * 4);
595}
596
597/* Ends C function definitions when using C++ */
598#ifdef __cplusplus
599}
600#endif
601#include "close_code.h"
602
603#endif /* SDL_stdinc_h_ */
604
605/* vi: set ts=4 sw=4 expandtab: */
606