1 files changed, 719 insertions, 0 deletions

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+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
+/**
+ *  \file SDL_stdinc.h
+ *
+ *  This is a general header that includes C language support.
+ */
+
+#ifndef SDL_stdinc_h_
+#define SDL_stdinc_h_
+
+#include "SDL_config.h"
+
+#ifdef __APPLE__
+#ifndef _DARWIN_C_SOURCE
+#define _DARWIN_C_SOURCE 1 /* for memset_pattern4() */
+#endif
+#endif
+
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_STDIO_H
+#include <stdio.h>
+#endif
+#if defined(STDC_HEADERS)
+# include <stdlib.h>
+# include <stddef.h>
+# include <stdarg.h>
+#else
+# if defined(HAVE_STDLIB_H)
+#  include <stdlib.h>
+# elif defined(HAVE_MALLOC_H)
+#  include <malloc.h>
+# endif
+# if defined(HAVE_STDDEF_H)
+#  include <stddef.h>
+# endif
+# if defined(HAVE_STDARG_H)
+#  include <stdarg.h>
+# endif
+#endif
+#ifdef HAVE_STRING_H
+# if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
+#  include <memory.h>
+# endif
+# include <string.h>
+#endif
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif
+#ifdef HAVE_WCHAR_H
+# include <wchar.h>
+#endif
+#if defined(HAVE_INTTYPES_H)
+# include <inttypes.h>
+#elif defined(HAVE_STDINT_H)
+# include <stdint.h>
+#endif
+#ifdef HAVE_CTYPE_H
+# include <ctype.h>
+#endif
+#ifdef HAVE_MATH_H
+# if defined(__WINRT__)
+/* Defining _USE_MATH_DEFINES is required to get M_PI to be defined on
+   WinRT.  See http://msdn.microsoft.com/en-us/library/4hwaceh6.aspx
+   for more information.
+*/
+#  define _USE_MATH_DEFINES
+# endif
+# include <math.h>
+#endif
+#ifdef HAVE_FLOAT_H
+# include <float.h>
+#endif
+#if defined(HAVE_ALLOCA) && !defined(alloca)
+# if defined(HAVE_ALLOCA_H)
+#  include <alloca.h>
+# elif defined(__GNUC__)
+#  define alloca __builtin_alloca
+# elif defined(_MSC_VER)
+#  include <malloc.h>
+#  define alloca _alloca
+# elif defined(__WATCOMC__)
+#  include <malloc.h>
+# elif defined(__BORLANDC__)
+#  include <malloc.h>
+# elif defined(__DMC__)
+#  include <stdlib.h>
+# elif defined(__AIX__)
+#pragma alloca
+# elif defined(__MRC__)
+void *alloca(unsigned);
+# else
+char *alloca();
+# endif
+#endif
+
+/**
+ * Check if the compiler supports a given builtin.
+ * Supported by virtually all clang versions and recent gcc. Use this
+ * instead of checking the clang version if possible.
+ */
+#ifdef __has_builtin
+#define _SDL_HAS_BUILTIN(x) __has_builtin(x)
+#else
+#define _SDL_HAS_BUILTIN(x) 0
+#endif
+
+/**
+ *  The number of elements in an array.
+ */
+#define SDL_arraysize(array)    (sizeof(array)/sizeof(array[0]))
+#define SDL_TABLESIZE(table)    SDL_arraysize(table)
+
+/**
+ *  Macro useful for building other macros with strings in them
+ *
+ *  e.g. #define LOG_ERROR(X) OutputDebugString(SDL_STRINGIFY_ARG(__FUNCTION__) ": " X "\n")
+ */
+#define SDL_STRINGIFY_ARG(arg)  #arg
+
+/**
+ *  \name Cast operators
+ *
+ *  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)
+#define SDL_const_cast(type, expression) const_cast<type>(expression)
+#else
+#define SDL_reinterpret_cast(type, expression) ((type)(expression))
+#define SDL_static_cast(type, expression) ((type)(expression))
+#define SDL_const_cast(type, expression) ((type)(expression))
+#endif
+/* @} *//* Cast operators */
+
+/* Define a four character code as a Uint32 */
+#define SDL_FOURCC(A, B, C, D) \
+    ((SDL_static_cast(Uint32, SDL_static_cast(Uint8, (A))) << 0) | \
+     (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (B))) << 8) | \
+     (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (C))) << 16) | \
+     (SDL_static_cast(Uint32, SDL_static_cast(Uint8, (D))) << 24))
+
+/**
+ *  \name Basic data types
+ */
+/* @{ */
+
+#ifdef __CC_ARM
+/* ARM's compiler throws warnings if we use an enum: like "SDL_bool x = a < b;" */
+#define SDL_FALSE 0
+#define SDL_TRUE 1
+typedef int SDL_bool;
+#else
+typedef enum
+{
+    SDL_FALSE = 0,
+    SDL_TRUE = 1
+} SDL_bool;
+#endif
+
+/**
+ * \brief A signed 8-bit integer type.
+ */
+#define SDL_MAX_SINT8   ((Sint8)0x7F)           /* 127 */
+#define SDL_MIN_SINT8   ((Sint8)(~0x7F))        /* -128 */
+typedef int8_t Sint8;
+/**
+ * \brief An unsigned 8-bit integer type.
+ */
+#define SDL_MAX_UINT8   ((Uint8)0xFF)           /* 255 */
+#define SDL_MIN_UINT8   ((Uint8)0x00)           /* 0 */
+typedef uint8_t Uint8;
+/**
+ * \brief A signed 16-bit integer type.
+ */
+#define SDL_MAX_SINT16  ((Sint16)0x7FFF)        /* 32767 */
+#define SDL_MIN_SINT16  ((Sint16)(~0x7FFF))     /* -32768 */
+typedef int16_t Sint16;
+/**
+ * \brief An unsigned 16-bit integer type.
+ */
+#define SDL_MAX_UINT16  ((Uint16)0xFFFF)        /* 65535 */
+#define SDL_MIN_UINT16  ((Uint16)0x0000)        /* 0 */
+typedef uint16_t Uint16;
+/**
+ * \brief A signed 32-bit integer type.
+ */
+#define SDL_MAX_SINT32  ((Sint32)0x7FFFFFFF)    /* 2147483647 */
+#define SDL_MIN_SINT32  ((Sint32)(~0x7FFFFFFF)) /* -2147483648 */
+typedef int32_t Sint32;
+/**
+ * \brief An unsigned 32-bit integer type.
+ */
+#define SDL_MAX_UINT32  ((Uint32)0xFFFFFFFFu)   /* 4294967295 */
+#define SDL_MIN_UINT32  ((Uint32)0x00000000)    /* 0 */
+typedef uint32_t Uint32;
+
+/**
+ * \brief A signed 64-bit integer type.
+ */
+#define SDL_MAX_SINT64  ((Sint64)0x7FFFFFFFFFFFFFFFll)      /* 9223372036854775807 */
+#define SDL_MIN_SINT64  ((Sint64)(~0x7FFFFFFFFFFFFFFFll))   /* -9223372036854775808 */
+typedef int64_t Sint64;
+/**
+ * \brief An unsigned 64-bit integer type.
+ */
+#define SDL_MAX_UINT64  ((Uint64)0xFFFFFFFFFFFFFFFFull)     /* 18446744073709551615 */
+#define SDL_MIN_UINT64  ((Uint64)(0x0000000000000000ull))   /* 0 */
+typedef uint64_t Uint64;
+
+/* @} *//* Basic data types */
+
+/* Make sure we have macros for printing width-based integers.
+ * <stdint.h> should define these but this is not true all platforms.
+ * (for example win32) */
+#ifndef SDL_PRIs64
+#ifdef PRIs64
+#define SDL_PRIs64 PRIs64
+#elif defined(__WIN32__)
+#define SDL_PRIs64 "I64d"
+#elif defined(__LINUX__) && defined(__LP64__)
+#define SDL_PRIs64 "ld"
+#else
+#define SDL_PRIs64 "lld"
+#endif
+#endif
+#ifndef SDL_PRIu64
+#ifdef PRIu64
+#define SDL_PRIu64 PRIu64
+#elif defined(__WIN32__)
+#define SDL_PRIu64 "I64u"
+#elif defined(__LINUX__) && defined(__LP64__)
+#define SDL_PRIu64 "lu"
+#else
+#define SDL_PRIu64 "llu"
+#endif
+#endif
+#ifndef SDL_PRIx64
+#ifdef PRIx64
+#define SDL_PRIx64 PRIx64
+#elif defined(__WIN32__)
+#define SDL_PRIx64 "I64x"
+#elif defined(__LINUX__) && defined(__LP64__)
+#define SDL_PRIx64 "lx"
+#else
+#define SDL_PRIx64 "llx"
+#endif
+#endif
+#ifndef SDL_PRIX64
+#ifdef PRIX64
+#define SDL_PRIX64 PRIX64
+#elif defined(__WIN32__)
+#define SDL_PRIX64 "I64X"
+#elif defined(__LINUX__) && defined(__LP64__)
+#define SDL_PRIX64 "lX"
+#else
+#define SDL_PRIX64 "llX"
+#endif
+#endif
+#ifndef SDL_PRIs32
+#ifdef PRId32
+#define SDL_PRIs32 PRId32
+#else
+#define SDL_PRIs32 "d"
+#endif
+#endif
+#ifndef SDL_PRIu32
+#ifdef PRIu32
+#define SDL_PRIu32 PRIu32
+#else
+#define SDL_PRIu32 "u"
+#endif
+#endif
+#ifndef SDL_PRIx32
+#ifdef PRIx32
+#define SDL_PRIx32 PRIx32
+#else
+#define SDL_PRIx32 "x"
+#endif
+#endif
+#ifndef SDL_PRIX32
+#ifdef PRIX32
+#define SDL_PRIX32 PRIX32
+#else
+#define SDL_PRIX32 "X"
+#endif
+#endif
+
+/* Annotations to help code analysis tools */
+#ifdef SDL_DISABLE_ANALYZE_MACROS
+#define SDL_IN_BYTECAP(x)
+#define SDL_INOUT_Z_CAP(x)
+#define SDL_OUT_Z_CAP(x)
+#define SDL_OUT_CAP(x)
+#define SDL_OUT_BYTECAP(x)
+#define SDL_OUT_Z_BYTECAP(x)
+#define SDL_PRINTF_FORMAT_STRING
+#define SDL_SCANF_FORMAT_STRING
+#define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
+#define SDL_SCANF_VARARG_FUNC( fmtargnumber )
+#else
+#if defined(_MSC_VER) && (_MSC_VER >= 1600) /* VS 2010 and above */
+#include <sal.h>
+
+#define SDL_IN_BYTECAP(x) _In_bytecount_(x)
+#define SDL_INOUT_Z_CAP(x) _Inout_z_cap_(x)
+#define SDL_OUT_Z_CAP(x) _Out_z_cap_(x)
+#define SDL_OUT_CAP(x) _Out_cap_(x)
+#define SDL_OUT_BYTECAP(x) _Out_bytecap_(x)
+#define SDL_OUT_Z_BYTECAP(x) _Out_z_bytecap_(x)
+
+#define SDL_PRINTF_FORMAT_STRING _Printf_format_string_
+#define SDL_SCANF_FORMAT_STRING _Scanf_format_string_impl_
+#else
+#define SDL_IN_BYTECAP(x)
+#define SDL_INOUT_Z_CAP(x)
+#define SDL_OUT_Z_CAP(x)
+#define SDL_OUT_CAP(x)
+#define SDL_OUT_BYTECAP(x)
+#define SDL_OUT_Z_BYTECAP(x)
+#define SDL_PRINTF_FORMAT_STRING
+#define SDL_SCANF_FORMAT_STRING
+#endif
+#if defined(__GNUC__)
+#define SDL_PRINTF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __printf__, fmtargnumber, fmtargnumber+1 )))
+#define SDL_SCANF_VARARG_FUNC( fmtargnumber ) __attribute__ (( format( __scanf__, fmtargnumber, fmtargnumber+1 )))
+#else
+#define SDL_PRINTF_VARARG_FUNC( fmtargnumber )
+#define SDL_SCANF_VARARG_FUNC( fmtargnumber )
+#endif
+#endif /* SDL_DISABLE_ANALYZE_MACROS */
+
+#define SDL_COMPILE_TIME_ASSERT(name, x)               \
+       typedef int SDL_compile_time_assert_ ## name[(x) * 2 - 1]
+/** \cond */
+#ifndef DOXYGEN_SHOULD_IGNORE_THIS
+SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
+SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
+SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
+SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
+SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
+SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
+SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
+SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
+#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
+/** \endcond */
+
+/* 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).
+*/
+
+/** \cond */
+#ifndef DOXYGEN_SHOULD_IGNORE_THIS
+#if !defined(__ANDROID__) && !defined(__VITA__)
+   /* TODO: include/SDL_stdinc.h:174: error: size of array 'SDL_dummy_enum' is negative */
+typedef enum
+{
+    DUMMY_ENUM_VALUE
+} SDL_DUMMY_ENUM;
+
+SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
+#endif
+#endif /* DOXYGEN_SHOULD_IGNORE_THIS */
+/** \endcond */
+
+#include "begin_code.h"
+/* Set up for C function definitions, even when using C++ */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef HAVE_ALLOCA
+#define SDL_stack_alloc(type, count)    (type*)alloca(sizeof(type)*(count))
+#define SDL_stack_free(data)
+#else
+#define SDL_stack_alloc(type, count)    (type*)SDL_malloc(sizeof(type)*(count))
+#define SDL_stack_free(data)            SDL_free(data)
+#endif
+
+extern DECLSPEC void *SDLCALL SDL_malloc(size_t size);
+extern DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size);
+extern DECLSPEC void *SDLCALL SDL_realloc(void *mem, size_t size);
+extern DECLSPEC void SDLCALL SDL_free(void *mem);
+
+typedef void *(SDLCALL *SDL_malloc_func)(size_t size);
+typedef void *(SDLCALL *SDL_calloc_func)(size_t nmemb, size_t size);
+typedef void *(SDLCALL *SDL_realloc_func)(void *mem, size_t size);
+typedef void (SDLCALL *SDL_free_func)(void *mem);
+
+/**
+ * Get the current set of SDL memory functions
+ *
+ * \since This function is available since SDL 2.0.7.
+ */
+extern DECLSPEC void SDLCALL SDL_GetMemoryFunctions(SDL_malloc_func *malloc_func,
+                                                    SDL_calloc_func *calloc_func,
+                                                    SDL_realloc_func *realloc_func,
+                                                    SDL_free_func *free_func);
+
+/**
+ * Replace SDL's memory allocation functions with a custom set
+ *
+ * \since This function is available since SDL 2.0.7.
+ */
+extern DECLSPEC int SDLCALL SDL_SetMemoryFunctions(SDL_malloc_func malloc_func,
+                                                   SDL_calloc_func calloc_func,
+                                                   SDL_realloc_func realloc_func,
+                                                   SDL_free_func free_func);
+
+/**
+ * Get the number of outstanding (unfreed) allocations
+ *
+ * \since This function is available since SDL 2.0.7.
+ */
+extern DECLSPEC int SDLCALL SDL_GetNumAllocations(void);
+
+extern DECLSPEC char *SDLCALL SDL_getenv(const char *name);
+extern DECLSPEC int SDLCALL SDL_setenv(const char *name, const char *value, int overwrite);
+
+extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size, int (*compare) (const void *, const void *));
+
+extern DECLSPEC int SDLCALL SDL_abs(int x);
+
+/* NOTE: these double-evaluate their arguments, so you should never have side effects in the parameters */
+#define SDL_min(x, y) (((x) < (y)) ? (x) : (y))
+#define SDL_max(x, y) (((x) > (y)) ? (x) : (y))
+#define SDL_clamp(x, a, b) (((x) < (a)) ? (a) : (((x) > (b)) ? (b) : (x)))
+
+extern DECLSPEC int SDLCALL SDL_isalpha(int x);
+extern DECLSPEC int SDLCALL SDL_isalnum(int x);
+extern DECLSPEC int SDLCALL SDL_isblank(int x);
+extern DECLSPEC int SDLCALL SDL_iscntrl(int x);
+extern DECLSPEC int SDLCALL SDL_isdigit(int x);
+extern DECLSPEC int SDLCALL SDL_isxdigit(int x);
+extern DECLSPEC int SDLCALL SDL_ispunct(int x);
+extern DECLSPEC int SDLCALL SDL_isspace(int x);
+extern DECLSPEC int SDLCALL SDL_isupper(int x);
+extern DECLSPEC int SDLCALL SDL_islower(int x);
+extern DECLSPEC int SDLCALL SDL_isprint(int x);
+extern DECLSPEC int SDLCALL SDL_isgraph(int x);
+extern DECLSPEC int SDLCALL SDL_toupper(int x);
+extern DECLSPEC int SDLCALL SDL_tolower(int x);
+
+extern DECLSPEC Uint32 SDLCALL SDL_crc32(Uint32 crc, const void *data, size_t len);
+
+extern DECLSPEC void *SDLCALL SDL_memset(SDL_OUT_BYTECAP(len) void *dst, int c, size_t len);
+
+#define SDL_zero(x) SDL_memset(&(x), 0, sizeof((x)))
+#define SDL_zerop(x) SDL_memset((x), 0, sizeof(*(x)))
+#define SDL_zeroa(x) SDL_memset((x), 0, sizeof((x)))
+
+/* Note that memset() is a byte assignment and this is a 32-bit assignment, so they're not directly equivalent. */
+SDL_FORCE_INLINE void SDL_memset4(void *dst, Uint32 val, size_t dwords)
+{
+#ifdef __APPLE__
+    memset_pattern4(dst, &val, dwords * 4);
+#elif defined(__GNUC__) && defined(__i386__)
+    int u0, u1, u2;
+    __asm__ __volatile__ (
+        "cld \n\t"
+        "rep ; stosl \n\t"
+        : "=&D" (u0), "=&a" (u1), "=&c" (u2)
+        : "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, dwords))
+        : "memory"
+    );
+#else
+    size_t _n = (dwords + 3) / 4;
+    Uint32 *_p = SDL_static_cast(Uint32 *, dst);
+    Uint32 _val = (val);
+    if (dwords == 0) {
+        return;
+    }
+    switch (dwords % 4) {
+        case 0: do {    *_p++ = _val;   SDL_FALLTHROUGH;
+        case 3:         *_p++ = _val;   SDL_FALLTHROUGH;
+        case 2:         *_p++ = _val;   SDL_FALLTHROUGH;
+        case 1:         *_p++ = _val;
+        } while ( --_n );
+    }
+#endif
+}
+
+extern DECLSPEC void *SDLCALL SDL_memcpy(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
+
+extern DECLSPEC void *SDLCALL SDL_memmove(SDL_OUT_BYTECAP(len) void *dst, SDL_IN_BYTECAP(len) const void *src, size_t len);
+extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
+
+extern DECLSPEC size_t SDLCALL SDL_wcslen(const wchar_t *wstr);
+extern DECLSPEC size_t SDLCALL SDL_wcslcpy(SDL_OUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
+extern DECLSPEC size_t SDLCALL SDL_wcslcat(SDL_INOUT_Z_CAP(maxlen) wchar_t *dst, const wchar_t *src, size_t maxlen);
+extern DECLSPEC wchar_t *SDLCALL SDL_wcsdup(const wchar_t *wstr);
+extern DECLSPEC wchar_t *SDLCALL SDL_wcsstr(const wchar_t *haystack, const wchar_t *needle);
+
+extern DECLSPEC int SDLCALL SDL_wcscmp(const wchar_t *str1, const wchar_t *str2);
+extern DECLSPEC int SDLCALL SDL_wcsncmp(const wchar_t *str1, const wchar_t *str2, size_t maxlen);
+extern DECLSPEC int SDLCALL SDL_wcscasecmp(const wchar_t *str1, const wchar_t *str2);
+extern DECLSPEC int SDLCALL SDL_wcsncasecmp(const wchar_t *str1, const wchar_t *str2, size_t len);
+
+extern DECLSPEC size_t SDLCALL SDL_strlen(const char *str);
+extern DECLSPEC size_t SDLCALL SDL_strlcpy(SDL_OUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
+extern DECLSPEC size_t SDLCALL SDL_utf8strlcpy(SDL_OUT_Z_CAP(dst_bytes) char *dst, const char *src, size_t dst_bytes);
+extern DECLSPEC size_t SDLCALL SDL_strlcat(SDL_INOUT_Z_CAP(maxlen) char *dst, const char *src, size_t maxlen);
+extern DECLSPEC char *SDLCALL SDL_strdup(const char *str);
+extern DECLSPEC char *SDLCALL SDL_strrev(char *str);
+extern DECLSPEC char *SDLCALL SDL_strupr(char *str);
+extern DECLSPEC char *SDLCALL SDL_strlwr(char *str);
+extern DECLSPEC char *SDLCALL SDL_strchr(const char *str, int c);
+extern DECLSPEC char *SDLCALL SDL_strrchr(const char *str, int c);
+extern DECLSPEC char *SDLCALL SDL_strstr(const char *haystack, const char *needle);
+extern DECLSPEC char *SDLCALL SDL_strtokr(char *s1, const char *s2, char **saveptr);
+extern DECLSPEC size_t SDLCALL SDL_utf8strlen(const char *str);
+
+extern DECLSPEC char *SDLCALL SDL_itoa(int value, char *str, int radix);
+extern DECLSPEC char *SDLCALL SDL_uitoa(unsigned int value, char *str, int radix);
+extern DECLSPEC char *SDLCALL SDL_ltoa(long value, char *str, int radix);
+extern DECLSPEC char *SDLCALL SDL_ultoa(unsigned long value, char *str, int radix);
+extern DECLSPEC char *SDLCALL SDL_lltoa(Sint64 value, char *str, int radix);
+extern DECLSPEC char *SDLCALL SDL_ulltoa(Uint64 value, char *str, int radix);
+
+extern DECLSPEC int SDLCALL SDL_atoi(const char *str);
+extern DECLSPEC double SDLCALL SDL_atof(const char *str);
+extern DECLSPEC long SDLCALL SDL_strtol(const char *str, char **endp, int base);
+extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *str, char **endp, int base);
+extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *str, char **endp, int base);
+extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *str, char **endp, int base);
+extern DECLSPEC double SDLCALL SDL_strtod(const char *str, char **endp);
+
+extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
+extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
+extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
+extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t len);
+
+extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, SDL_SCANF_FORMAT_STRING const char *fmt, ...) SDL_SCANF_VARARG_FUNC(2);
+extern DECLSPEC int SDLCALL SDL_vsscanf(const char *text, const char *fmt, va_list ap);
+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);
+extern DECLSPEC int SDLCALL SDL_vsnprintf(SDL_OUT_Z_CAP(maxlen) char *text, size_t maxlen, const char *fmt, va_list ap);
+extern DECLSPEC int SDLCALL SDL_asprintf(char **strp, SDL_PRINTF_FORMAT_STRING const char *fmt, ...) SDL_PRINTF_VARARG_FUNC(2);
+extern DECLSPEC int SDLCALL SDL_vasprintf(char **strp, const char *fmt, va_list ap);
+
+#ifndef HAVE_M_PI
+#ifndef M_PI
+#define M_PI    3.14159265358979323846264338327950288   /**< pi */
+#endif
+#endif
+
+/**
+ * Use this function to compute arc cosine of `x`.
+ *
+ * The definition of `y = acos(x)` is `x = cos(y)`.
+ *
+ * Domain: `-1 <= x <= 1`
+ *
+ * Range: `0 <= y <= Pi`
+ *
+ * \param x floating point value, in radians.
+ * \returns arc cosine of `x`.
+ *
+ * \since This function is available since SDL 2.0.2.
+ */
+extern DECLSPEC double SDLCALL SDL_acos(double x);
+extern DECLSPEC float SDLCALL SDL_acosf(float x);
+extern DECLSPEC double SDLCALL SDL_asin(double x);
+extern DECLSPEC float SDLCALL SDL_asinf(float x);
+extern DECLSPEC double SDLCALL SDL_atan(double x);
+extern DECLSPEC float SDLCALL SDL_atanf(float x);
+extern DECLSPEC double SDLCALL SDL_atan2(double y, double x);
+extern DECLSPEC float SDLCALL SDL_atan2f(float y, float x);
+extern DECLSPEC double SDLCALL SDL_ceil(double x);
+extern DECLSPEC float SDLCALL SDL_ceilf(float x);
+extern DECLSPEC double SDLCALL SDL_copysign(double x, double y);
+extern DECLSPEC float SDLCALL SDL_copysignf(float x, float y);
+extern DECLSPEC double SDLCALL SDL_cos(double x);
+extern DECLSPEC float SDLCALL SDL_cosf(float x);
+extern DECLSPEC double SDLCALL SDL_exp(double x);
+extern DECLSPEC float SDLCALL SDL_expf(float x);
+extern DECLSPEC double SDLCALL SDL_fabs(double x);
+extern DECLSPEC float SDLCALL SDL_fabsf(float x);
+extern DECLSPEC double SDLCALL SDL_floor(double x);
+extern DECLSPEC float SDLCALL SDL_floorf(float x);
+extern DECLSPEC double SDLCALL SDL_trunc(double x);
+extern DECLSPEC float SDLCALL SDL_truncf(float x);
+extern DECLSPEC double SDLCALL SDL_fmod(double x, double y);
+extern DECLSPEC float SDLCALL SDL_fmodf(float x, float y);
+extern DECLSPEC double SDLCALL SDL_log(double x);
+extern DECLSPEC float SDLCALL SDL_logf(float x);
+extern DECLSPEC double SDLCALL SDL_log10(double x);
+extern DECLSPEC float SDLCALL SDL_log10f(float x);
+extern DECLSPEC double SDLCALL SDL_pow(double x, double y);
+extern DECLSPEC float SDLCALL SDL_powf(float x, float y);
+extern DECLSPEC double SDLCALL SDL_round(double x);
+extern DECLSPEC float SDLCALL SDL_roundf(float x);
+extern DECLSPEC long SDLCALL SDL_lround(double x);
+extern DECLSPEC long SDLCALL SDL_lroundf(float x);
+extern DECLSPEC double SDLCALL SDL_scalbn(double x, int n);
+extern DECLSPEC float SDLCALL SDL_scalbnf(float x, int n);
+extern DECLSPEC double SDLCALL SDL_sin(double x);
+extern DECLSPEC float SDLCALL SDL_sinf(float x);
+extern DECLSPEC double SDLCALL SDL_sqrt(double x);
+extern DECLSPEC float SDLCALL SDL_sqrtf(float x);
+extern DECLSPEC double SDLCALL SDL_tan(double x);
+extern DECLSPEC float SDLCALL SDL_tanf(float x);
+
+/* 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
+
+/* SDL_iconv_* are now always real symbols/types, not macros or inlined. */
+typedef struct _SDL_iconv_t *SDL_iconv_t;
+extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode,
+                                                   const char *fromcode);
+extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
+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.
+ *
+ * \since This function is available since SDL 2.0.0.
+ */
+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-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
+#define SDL_iconv_utf8_ucs4(S)      (Uint32 *)SDL_iconv_string("UCS-4-INTERNAL", "UTF-8", S, SDL_strlen(S)+1)
+#define SDL_iconv_wchar_utf8(S)     SDL_iconv_string("UTF-8", "WCHAR_T", (char *)S, (SDL_wcslen(S)+1)*sizeof(wchar_t))
+
+/* force builds using Clang's static analysis tools to use literal C runtime
+   here, since there are possibly tests that are ineffective otherwise. */
+#if defined(__clang_analyzer__) && !defined(SDL_DISABLE_ANALYZE_MACROS)
+
+/* The analyzer knows about strlcpy even when the system doesn't provide it */
+#ifndef HAVE_STRLCPY
+size_t strlcpy(char* dst, const char* src, size_t size);
+#endif
+
+/* The analyzer knows about strlcat even when the system doesn't provide it */
+#ifndef HAVE_STRLCAT
+size_t strlcat(char* dst, const char* src, size_t size);
+#endif
+
+#define SDL_malloc malloc
+#define SDL_calloc calloc
+#define SDL_realloc realloc
+#define SDL_free free
+#define SDL_memset memset
+#define SDL_memcpy memcpy
+#define SDL_memmove memmove
+#define SDL_memcmp memcmp
+#define SDL_strlcpy strlcpy
+#define SDL_strlcat strlcat
+#define SDL_strlen strlen
+#define SDL_wcslen wcslen
+#define SDL_wcslcpy wcslcpy
+#define SDL_wcslcat wcslcat
+#define SDL_strdup strdup
+#define SDL_wcsdup wcsdup
+#define SDL_strchr strchr
+#define SDL_strrchr strrchr
+#define SDL_strstr strstr
+#define SDL_wcsstr wcsstr
+#define SDL_strtokr strtok_r
+#define SDL_strcmp strcmp
+#define SDL_wcscmp wcscmp
+#define SDL_strncmp strncmp
+#define SDL_wcsncmp wcsncmp
+#define SDL_strcasecmp strcasecmp
+#define SDL_strncasecmp strncasecmp
+#define SDL_sscanf sscanf
+#define SDL_vsscanf vsscanf
+#define SDL_snprintf snprintf
+#define SDL_vsnprintf vsnprintf
+#endif
+
+SDL_FORCE_INLINE void *SDL_memcpy4(SDL_OUT_BYTECAP(dwords*4) void *dst, SDL_IN_BYTECAP(dwords*4) const void *src, size_t dwords)
+{
+    return SDL_memcpy(dst, src, dwords * 4);
+}
+
+/* Ends C function definitions when using C++ */
+#ifdef __cplusplus
+}
+#endif
+#include "close_code.h"
+
+#endif /* SDL_stdinc_h_ */
+
+/* vi: set ts=4 sw=4 expandtab: */