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Added SDL_isinf(), SDL_isinff(), SDL_isnan(), and SDL_isnanf()

This commit is contained in:
Sam Lantinga 2024-06-24 09:39:53 -07:00
parent 410bed20ba
commit 89cdadf7c3
25 changed files with 359 additions and 53 deletions
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2
CMakeLists.txt
View File

@ -1064,7 +1064,7 @@ if(SDL_LIBC)
_Exit exp expf
fabs fabsf floor floorf fmod fmodf fopen64 free fseeko fseeko64
getenv
_i64toa index itoa
_i64toa index isinf isinff isnan isnanf itoa
log log10 log10f logf lround lroundf _ltoa
malloc memcmp memcpy memmove memset modf modff
pow powf putenv

4
VisualC-GDK/SDL/SDL.vcxproj
View File

@ -724,6 +724,10 @@
<ClCompile Include="..\..\src\libm\s_cos.c" />
<ClCompile Include="..\..\src\libm\s_fabs.c" />
<ClCompile Include="..\..\src\libm\s_floor.c" />
<ClCompile Include="..\..\src\libm\s_isinf.c" />
<ClCompile Include="..\..\src\libm\s_isinff.c" />
<ClCompile Include="..\..\src\libm\s_isnan.c" />
<ClCompile Include="..\..\src\libm\s_isnanf.c" />
<ClCompile Include="..\..\src\libm\s_modf.c" />
<ClCompile Include="..\..\src\libm\s_scalbn.c" />
<ClCompile Include="..\..\src\libm\s_sin.c" />

4
VisualC-GDK/SDL/SDL.vcxproj.filters
View File

@ -106,6 +106,10 @@
<ClCompile Include="..\..\src\libm\s_cos.c" />
<ClCompile Include="..\..\src\libm\s_fabs.c" />
<ClCompile Include="..\..\src\libm\s_floor.c" />
<ClCompile Include="..\..\src\libm\s_isinf.c" />
<ClCompile Include="..\..\src\libm\s_isinff.c" />
<ClCompile Include="..\..\src\libm\s_isnan.c" />
<ClCompile Include="..\..\src\libm\s_isnanf.c" />
<ClCompile Include="..\..\src\libm\s_modf.c" />
<ClCompile Include="..\..\src\libm\s_scalbn.c" />
<ClCompile Include="..\..\src\libm\s_sin.c" />

4
VisualC/SDL/SDL.vcxproj
View File

@ -584,6 +584,10 @@
<ClCompile Include="..\..\src\libm\s_cos.c" />
<ClCompile Include="..\..\src\libm\s_fabs.c" />
<ClCompile Include="..\..\src\libm\s_floor.c" />
<ClCompile Include="..\..\src\libm\s_isinf.c" />
<ClCompile Include="..\..\src\libm\s_isinff.c" />
<ClCompile Include="..\..\src\libm\s_isnan.c" />
<ClCompile Include="..\..\src\libm\s_isnanf.c" />
<ClCompile Include="..\..\src\libm\s_modf.c" />
<ClCompile Include="..\..\src\libm\s_scalbn.c" />
<ClCompile Include="..\..\src\libm\s_sin.c" />

12
VisualC/SDL/SDL.vcxproj.filters
View File

@ -1096,6 +1096,18 @@
<ClCompile Include="..\..\src\libm\s_floor.c">
<Filter>libm</Filter>
</ClCompile>
<ClCompile Include="..\..\src\libm\s_isinf.c">
<Filter>libm</Filter>
</ClCompile>
<ClCompile Include="..\..\src\libm\s_isinff.c">
<Filter>libm</Filter>
</ClCompile>
<ClCompile Include="..\..\src\libm\s_isnan.c">
<Filter>libm</Filter>
</ClCompile>
<ClCompile Include="..\..\src\libm\s_isnanf.c">
<Filter>libm</Filter>
</ClCompile>
<ClCompile Include="..\..\src\libm\s_modf.c">
<Filter>libm</Filter>
</ClCompile>

20
Xcode/SDL/SDL.xcodeproj/project.pbxproj
View File

@ -450,6 +450,11 @@
F3E5A6EB2AD5E0E600293D83 /* SDL_properties.c in Sources */ = {isa = PBXBuildFile; fileRef = F3E5A6EA2AD5E0E600293D83 /* SDL_properties.c */; };
F3E5A6ED2AD5E10800293D83 /* SDL_properties.h in Headers */ = {isa = PBXBuildFile; fileRef = F3E5A6EC2AD5E10800293D83 /* SDL_properties.h */; settings = {ATTRIBUTES = (Public, ); }; };
F3F07D5A269640160074468B /* SDL_hidapi_luna.c in Sources */ = {isa = PBXBuildFile; fileRef = F3F07D59269640160074468B /* SDL_hidapi_luna.c */; };
F3F528CB2C29E1C300E6CC26 /* s_isnanf.c in Sources */ = {isa = PBXBuildFile; fileRef = F3F528C62C29E1C300E6CC26 /* s_isnanf.c */; };
F3F528CC2C29E1C300E6CC26 /* s_isinf.c in Sources */ = {isa = PBXBuildFile; fileRef = F3F528C72C29E1C300E6CC26 /* s_isinf.c */; };
F3F528CD2C29E1C300E6CC26 /* s_isnan.c in Sources */ = {isa = PBXBuildFile; fileRef = F3F528C82C29E1C300E6CC26 /* s_isnan.c */; };
F3F528CE2C29E1C300E6CC26 /* s_modf.c in Sources */ = {isa = PBXBuildFile; fileRef = F3F528C92C29E1C300E6CC26 /* s_modf.c */; };
F3F528CF2C29E1C300E6CC26 /* s_isinff.c in Sources */ = {isa = PBXBuildFile; fileRef = F3F528CA2C29E1C300E6CC26 /* s_isinff.c */; };
F3F7D8ED2933074E00816151 /* SDL_audio.h in Headers */ = {isa = PBXBuildFile; fileRef = F3F7D8AA2933074900816151 /* SDL_audio.h */; settings = {ATTRIBUTES = (Public, ); }; };
F3F7D8F12933074E00816151 /* SDL_platform.h in Headers */ = {isa = PBXBuildFile; fileRef = F3F7D8AB2933074900816151 /* SDL_platform.h */; settings = {ATTRIBUTES = (Public, ); }; };
F3F7D8F52933074E00816151 /* SDL_stdinc.h in Headers */ = {isa = PBXBuildFile; fileRef = F3F7D8AC2933074900816151 /* SDL_stdinc.h */; settings = {ATTRIBUTES = (Public, ); }; };
@ -994,6 +999,11 @@
F3E5A6EA2AD5E0E600293D83 /* SDL_properties.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = SDL_properties.c; sourceTree = "<group>"; };
F3E5A6EC2AD5E10800293D83 /* SDL_properties.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = SDL_properties.h; path = SDL3/SDL_properties.h; sourceTree = "<group>"; };
F3F07D59269640160074468B /* SDL_hidapi_luna.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = SDL_hidapi_luna.c; sourceTree = "<group>"; };
F3F528C62C29E1C300E6CC26 /* s_isnanf.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = s_isnanf.c; sourceTree = "<group>"; };
F3F528C72C29E1C300E6CC26 /* s_isinf.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = s_isinf.c; sourceTree = "<group>"; };
F3F528C82C29E1C300E6CC26 /* s_isnan.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = s_isnan.c; sourceTree = "<group>"; };
F3F528C92C29E1C300E6CC26 /* s_modf.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = s_modf.c; sourceTree = "<group>"; };
F3F528CA2C29E1C300E6CC26 /* s_isinff.c */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.c; path = s_isinff.c; sourceTree = "<group>"; };
F3F7D8AA2933074900816151 /* SDL_audio.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = SDL_audio.h; path = SDL3/SDL_audio.h; sourceTree = "<group>"; };
F3F7D8AB2933074900816151 /* SDL_platform.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = SDL_platform.h; path = SDL3/SDL_platform.h; sourceTree = "<group>"; };
F3F7D8AC2933074900816151 /* SDL_stdinc.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = SDL_stdinc.h; path = SDL3/SDL_stdinc.h; sourceTree = "<group>"; };
@ -2161,6 +2171,11 @@
A7D8A91323E2514000DCD162 /* s_cos.c */,
A7D8A91523E2514000DCD162 /* s_fabs.c */,
A7D8A92523E2514000DCD162 /* s_floor.c */,
F3F528C72C29E1C300E6CC26 /* s_isinf.c */,
F3F528CA2C29E1C300E6CC26 /* s_isinff.c */,
F3F528C82C29E1C300E6CC26 /* s_isnan.c */,
F3F528C62C29E1C300E6CC26 /* s_isnanf.c */,
F3F528C92C29E1C300E6CC26 /* s_modf.c */,
A7D8A91A23E2514000DCD162 /* s_scalbn.c */,
A7D8A91223E2514000DCD162 /* s_sin.c */,
A7D8A91E23E2514000DCD162 /* s_tan.c */,
@ -2708,7 +2723,9 @@
F31A92D228D4CB39003BFD6A /* SDL_offscreenopengles.c in Sources */,
A1626A3E2617006A003F1973 /* SDL_triangle.c in Sources */,
A7D8B3F223E2514300DCD162 /* SDL_thread.c in Sources */,
F3F528CF2C29E1C300E6CC26 /* s_isinff.c in Sources */,
A7D8B55D23E2514300DCD162 /* SDL_hidapi_xbox360w.c in Sources */,
F3F528CB2C29E1C300E6CC26 /* s_isnanf.c in Sources */,
A7D8A95723E2514000DCD162 /* SDL_atomic.c in Sources */,
A75FDBCE23EA380300529352 /* SDL_hidapi_rumble.c in Sources */,
A7D8BB2723E2514500DCD162 /* SDL_displayevents.c in Sources */,
@ -2756,6 +2773,7 @@
A7D8BB7B23E2514500DCD162 /* SDL_dropevents.c in Sources */,
A7D8BACD23E2514500DCD162 /* e_atan2.c in Sources */,
A7D8BA8B23E2514400DCD162 /* s_sin.c in Sources */,
F3F528CE2C29E1C300E6CC26 /* s_modf.c in Sources */,
A7D8BBEB23E2574800DCD162 /* SDL_uikitwindow.m in Sources */,
F395BF6525633B2400942BFF /* SDL_crc32.c in Sources */,
A7D8B5E723E2514300DCD162 /* SDL_power.c in Sources */,
@ -2788,6 +2806,7 @@
A7D8B95023E2514400DCD162 /* SDL_iconv.c in Sources */,
F3E5A6EB2AD5E0E600293D83 /* SDL_properties.c in Sources */,
A7D8BA9D23E2514400DCD162 /* s_fabs.c in Sources */,
F3F528CC2C29E1C300E6CC26 /* s_isinf.c in Sources */,
F395C1B12569C6A000942BFF /* SDL_mfijoystick.m in Sources */,
A7D8B99223E2514400DCD162 /* SDL_shaders_metal.metal in Sources */,
F3990DF52A787C10000D8759 /* SDL_sysurl.m in Sources */,
@ -2855,6 +2874,7 @@
A7D8AEA623E2514100DCD162 /* SDL_cocoawindow.m in Sources */,
A7D8B43A23E2514300DCD162 /* SDL_sysmutex.c in Sources */,
A7D8AAB023E2514100DCD162 /* SDL_syshaptic.c in Sources */,
F3F528CD2C29E1C300E6CC26 /* s_isnan.c in Sources */,
F3F07D5A269640160074468B /* SDL_hidapi_luna.c in Sources */,
A7D8BBD523E2574800DCD162 /* SDL_uikitclipboard.m in Sources */,
A7D8B5C923E2514300DCD162 /* SDL_iostreambundlesupport.m in Sources */,

56
include/SDL3/SDL_stdinc.h
View File

@ -2066,6 +2066,62 @@ extern SDL_DECLSPEC double SDLCALL SDL_fmod(double x, double y);
*/
extern SDL_DECLSPEC float SDLCALL SDL_fmodf(float x, float y);
/**
* Return whether the value is infinity.
*
* \param x double-precision floating point value.
* \returns non-zero if the value is infinity, 0 otherwise.
*
* \threadsafety It is safe to call this function from any thread.
*
* \since This function is available since SDL 3.0.0.
*
* \sa SDL_isinff
*/
extern SDL_DECLSPEC int SDLCALL SDL_isinf(double x);
/**
* Return whether the value is infinity.
*
* \param x floating point value.
* \returns non-zero if the value is infinity, 0 otherwise.
*
* \threadsafety It is safe to call this function from any thread.
*
* \since This function is available since SDL 3.0.0.
*
* \sa SDL_isinf
*/
extern SDL_DECLSPEC int SDLCALL SDL_isinff(float x);
/**
* Return whether the value is NaN.
*
* \param x double-precision floating point value.
* \returns non-zero if the value is NaN, 0 otherwise.
*
* \threadsafety It is safe to call this function from any thread.
*
* \since This function is available since SDL 3.0.0.
*
* \sa SDL_isnanf
*/
extern SDL_DECLSPEC int SDLCALL SDL_isnan(double x);
/**
* Return whether the value is NaN.
*
* \param x floating point value.
* \returns non-zero if the value is NaN, 0 otherwise.
*
* \threadsafety It is safe to call this function from any thread.
*
* \since This function is available since SDL 3.0.0.
*
* \sa SDL_isnan
*/
extern SDL_DECLSPEC int SDLCALL SDL_isnanf(float x);
/**
* Compute the natural logarithm of `x`.
*

4
include/build_config/SDL_build_config.h.cmake
View File

@ -152,6 +152,10 @@
#cmakedefine HAVE_FLOORF 1
#cmakedefine HAVE_FMOD 1
#cmakedefine HAVE_FMODF 1
#cmakedefine HAVE_ISINF 1
#cmakedefine HAVE_ISINFF 1
#cmakedefine HAVE_ISNAN 1
#cmakedefine HAVE_ISNANF 1
#cmakedefine HAVE_LOG 1
#cmakedefine HAVE_LOGF 1
#cmakedefine HAVE_LOG10 1

4
include/build_config/SDL_build_config_android.h
View File

@ -109,6 +109,10 @@
#define HAVE_FLOORF 1
#define HAVE_FMOD 1
#define HAVE_FMODF 1
#define HAVE_ISINF 1
#define HAVE_ISINF_FLOAT_MACRO 1
#define HAVE_ISNAN 1
#define HAVE_ISNAN_FLOAT_MACRO 1
#define HAVE_LOG 1
#define HAVE_LOGF 1
#define HAVE_LOG10 1

4
include/build_config/SDL_build_config_ios.h
View File

@ -101,6 +101,10 @@
#define HAVE_FLOORF 1
#define HAVE_FMOD 1
#define HAVE_FMODF 1
#define HAVE_ISINF 1
#define HAVE_ISINF_FLOAT_MACRO 1
#define HAVE_ISNAN 1
#define HAVE_ISNAN_FLOAT_MACRO 1
#define HAVE_LOG 1
#define HAVE_LOGF 1
#define HAVE_LOG10 1

4
include/build_config/SDL_build_config_macos.h
View File

@ -105,6 +105,10 @@
#define HAVE_FLOORF 1
#define HAVE_FMOD 1
#define HAVE_FMODF 1
#define HAVE_ISINF 1
#define HAVE_ISINF_FLOAT_MACRO 1
#define HAVE_ISNAN 1
#define HAVE_ISNAN_FLOAT_MACRO 1
#define HAVE_LOG 1
#define HAVE_LOGF 1
#define HAVE_LOG10 1

4
include/build_config/SDL_build_config_windows.h
View File

@ -175,6 +175,10 @@ typedef unsigned int uintptr_t;
#define HAVE_FABS 1
#define HAVE_FLOOR 1
#define HAVE_FMOD 1
#define HAVE_ISINF 1
#define HAVE_ISINF_FLOAT_MACRO 1
#define HAVE_ISNAN 1
#define HAVE_ISNAN_FLOAT_MACRO 1
#define HAVE_LOG 1
#define HAVE_LOG10 1
#define HAVE_POW 1

4
include/build_config/SDL_build_config_wingdk.h
View File

@ -111,6 +111,10 @@
#define HAVE_FABS 1
#define HAVE_FLOOR 1
#define HAVE_FMOD 1
#define HAVE_ISINF 1
#define HAVE_ISINF_FLOAT_MACRO 1
#define HAVE_ISNAN 1
#define HAVE_ISNAN_FLOAT_MACRO 1
#define HAVE_LOG 1
#define HAVE_LOG10 1
#define HAVE_POW 1

4
include/build_config/SDL_build_config_winrt.h
View File

@ -123,6 +123,10 @@
#define HAVE_FLOORF 1
#define HAVE_FMOD 1
#define HAVE_FMODF 1
#define HAVE_ISINF 1
#define HAVE_ISINF_FLOAT_MACRO 1
#define HAVE_ISNAN 1
#define HAVE_ISNAN_FLOAT_MACRO 1
#define HAVE_LOG 1
#define HAVE_LOGF 1
#define HAVE_LOG10 1

4
include/build_config/SDL_build_config_xbox.h
View File

@ -110,6 +110,10 @@
#define HAVE_FABS 1
#define HAVE_FLOOR 1
#define HAVE_FMOD 1
#define HAVE_ISINF 1
#define HAVE_ISINF_FLOAT_MACRO 1
#define HAVE_ISNAN 1
#define HAVE_ISNAN_FLOAT_MACRO 1
#define HAVE_LOG 1
#define HAVE_LOG10 1
#define HAVE_POW 1

4
src/dynapi/SDL_dynapi.sym
View File

@ -930,7 +930,11 @@ SDL3_0.0.0 {
SDL_iscntrl;
SDL_isdigit;
SDL_isgraph;
SDL_isinf;
SDL_isinff;
SDL_islower;
SDL_isnan;
SDL_isnanf;
SDL_isprint;
SDL_ispunct;
SDL_isspace;

4
src/dynapi/SDL_dynapi_overrides.h
View File

@ -955,7 +955,11 @@
#define SDL_iscntrl SDL_iscntrl_REAL
#define SDL_isdigit SDL_isdigit_REAL
#define SDL_isgraph SDL_isgraph_REAL
#define SDL_isinf SDL_isinf_REAL
#define SDL_isinff SDL_isinff_REAL
#define SDL_islower SDL_islower_REAL
#define SDL_isnan SDL_isnan_REAL
#define SDL_isnanf SDL_isnanf_REAL
#define SDL_isprint SDL_isprint_REAL
#define SDL_ispunct SDL_ispunct_REAL
#define SDL_isspace SDL_isspace_REAL

4
src/dynapi/SDL_dynapi_procs.h
View File

@ -964,7 +964,11 @@ SDL_DYNAPI_PROC(int,SDL_isblank,(int a),(a),return)
SDL_DYNAPI_PROC(int,SDL_iscntrl,(int a),(a),return)
SDL_DYNAPI_PROC(int,SDL_isdigit,(int a),(a),return)
SDL_DYNAPI_PROC(int,SDL_isgraph,(int a),(a),return)
SDL_DYNAPI_PROC(int,SDL_isinf,(double a),(a),return)
SDL_DYNAPI_PROC(int,SDL_isinff,(float a),(a),return)
SDL_DYNAPI_PROC(int,SDL_islower,(int a),(a),return)
SDL_DYNAPI_PROC(int,SDL_isnan,(double a),(a),return)
SDL_DYNAPI_PROC(int,SDL_isnanf,(float a),(a),return)
SDL_DYNAPI_PROC(int,SDL_isprint,(int a),(a),return)
SDL_DYNAPI_PROC(int,SDL_ispunct,(int a),(a),return)
SDL_DYNAPI_PROC(int,SDL_isspace,(int a),(a),return)

36
src/libm/math_libm.h
View File

@ -26,21 +26,25 @@
/* Math routines from uClibc: http://www.uclibc.org */
double SDL_uclibc_atan(double x);
double SDL_uclibc_atan2(double y, double x);
double SDL_uclibc_copysign(double x, double y);
double SDL_uclibc_cos(double x);
double SDL_uclibc_exp(double x);
double SDL_uclibc_fabs(double x);
double SDL_uclibc_floor(double x);
double SDL_uclibc_fmod(double x, double y);
double SDL_uclibc_log(double x);
double SDL_uclibc_log10(double x);
double SDL_uclibc_modf(double x, double *y);
double SDL_uclibc_pow(double x, double y);
double SDL_uclibc_scalbn(double x, int n);
double SDL_uclibc_sin(double x);
double SDL_uclibc_sqrt(double x);
double SDL_uclibc_tan(double x);
extern double SDL_uclibc_atan(double x);
extern double SDL_uclibc_atan2(double y, double x);
extern double SDL_uclibc_copysign(double x, double y);
extern double SDL_uclibc_cos(double x);
extern double SDL_uclibc_exp(double x);
extern double SDL_uclibc_fabs(double x);
extern double SDL_uclibc_floor(double x);
extern double SDL_uclibc_fmod(double x, double y);
extern int SDL_uclibc_isinf(double x);
extern int SDL_uclibc_isinff(float x);
extern int SDL_uclibc_isnan(double x);
extern int SDL_uclibc_isnanf(float x);
extern double SDL_uclibc_log(double x);
extern double SDL_uclibc_log10(double x);
extern double SDL_uclibc_modf(double x, double *y);
extern double SDL_uclibc_pow(double x, double y);
extern double SDL_uclibc_scalbn(double x, int n);
extern double SDL_uclibc_sin(double x);
extern double SDL_uclibc_sqrt(double x);
extern double SDL_uclibc_tan(double x);
#endif /* math_libm_h_ */

78
src/libm/math_private.h
View File

@ -25,6 +25,7 @@
#define libm_hidden_proto(x)
#define libm_hidden_def(x)
#define strong_alias(x, y)
#define weak_alias(x, y)
#if !defined(SDL_PLATFORM_HAIKU) && !defined(SDL_PLATFORM_PSP) && !defined(SDL_PLATFORM_3DS) && !defined(SDL_PLATFORM_PS2) /* already defined in a system header. */
typedef unsigned int u_int32_t;
@ -38,6 +39,14 @@ typedef unsigned int u_int32_t;
#define fabs SDL_uclibc_fabs
#define floor SDL_uclibc_floor
#define __ieee754_fmod SDL_uclibc_fmod
#undef __isinf
#define __isinf SDL_uclibc_isinf
#undef __isinff
#define __isinff SDL_uclibc_isinff
#undef __isnan
#define __isnan SDL_uclibc_isnan
#undef __isnanf
#define __isnanf SDL_uclibc_isnanf
#define __ieee754_log SDL_uclibc_log
#define __ieee754_log10 SDL_uclibc_log10
#define modf SDL_uclibc_modf
@ -181,48 +190,45 @@ do { \
} while (0)
/* ieee style elementary functions */
extern double
__ieee754_sqrt(double)
attribute_hidden;
extern double __ieee754_acos(double) attribute_hidden;
extern double __ieee754_acosh(double) attribute_hidden;
extern double __ieee754_log(double) attribute_hidden;
extern double __ieee754_atanh(double) attribute_hidden;
extern double __ieee754_asin(double) attribute_hidden;
extern double __ieee754_atan2(double, double) attribute_hidden;
extern double __ieee754_exp(double) attribute_hidden;
extern double __ieee754_cosh(double) attribute_hidden;
extern double __ieee754_fmod(double, double) attribute_hidden;
extern double __ieee754_pow(double, double) attribute_hidden;
extern double __ieee754_lgamma_r(double, int *) attribute_hidden;
extern double __ieee754_gamma_r(double, int *) attribute_hidden;
extern double __ieee754_lgamma(double) attribute_hidden;
extern double __ieee754_gamma(double) attribute_hidden;
extern double __ieee754_log10(double) attribute_hidden;
extern double __ieee754_sinh(double) attribute_hidden;
extern double __ieee754_hypot(double, double) attribute_hidden;
extern double __ieee754_j0(double) attribute_hidden;
extern double __ieee754_j1(double) attribute_hidden;
extern double __ieee754_y0(double) attribute_hidden;
extern double __ieee754_y1(double) attribute_hidden;
extern double __ieee754_jn(int, double) attribute_hidden;
extern double __ieee754_yn(int, double) attribute_hidden;
extern double __ieee754_remainder(double, double) attribute_hidden;
extern int32_t __ieee754_rem_pio2(double, double *) attribute_hidden;
extern double __ieee754_sqrt(double) attribute_hidden;
extern double __ieee754_acos(double) attribute_hidden;
extern double __ieee754_acosh(double) attribute_hidden;
extern double __ieee754_log(double) attribute_hidden;
extern double __ieee754_atanh(double) attribute_hidden;
extern double __ieee754_asin(double) attribute_hidden;
extern double __ieee754_atan2(double, double) attribute_hidden;
extern double __ieee754_exp(double) attribute_hidden;
extern double __ieee754_cosh(double) attribute_hidden;
extern double __ieee754_fmod(double, double) attribute_hidden;
extern double __ieee754_pow(double, double) attribute_hidden;
extern double __ieee754_lgamma_r(double, int *) attribute_hidden;
extern double __ieee754_gamma_r(double, int *) attribute_hidden;
extern double __ieee754_lgamma(double) attribute_hidden;
extern double __ieee754_gamma(double) attribute_hidden;
extern double __ieee754_log10(double) attribute_hidden;
extern double __ieee754_sinh(double) attribute_hidden;
extern double __ieee754_hypot(double, double) attribute_hidden;
extern double __ieee754_j0(double) attribute_hidden;
extern double __ieee754_j1(double) attribute_hidden;
extern double __ieee754_y0(double) attribute_hidden;
extern double __ieee754_y1(double) attribute_hidden;
extern double __ieee754_jn(int, double) attribute_hidden;
extern double __ieee754_yn(int, double) attribute_hidden;
extern double __ieee754_remainder(double, double) attribute_hidden;
extern int32_t __ieee754_rem_pio2(double, double *) attribute_hidden;
#if defined(_SCALB_INT)
extern double __ieee754_scalb(double, int) attribute_hidden;
extern double __ieee754_scalb(double, int) attribute_hidden;
#else
extern double __ieee754_scalb(double, double) attribute_hidden;
extern double __ieee754_scalb(double, double) attribute_hidden;
#endif
/* fdlibm kernel function */
#ifndef _IEEE_LIBM
extern double __kernel_standard(double, double, int) attribute_hidden;
extern double __kernel_standard(double, double, int) attribute_hidden;
#endif
extern double __kernel_sin(double, double, int) attribute_hidden;
extern double __kernel_cos(double, double) attribute_hidden;
extern double __kernel_tan(double, double, int) attribute_hidden;
extern int32_t __kernel_rem_pio2(const double *, double *, int, int, const unsigned int,
const int32_t *) attribute_hidden;
extern double __kernel_sin(double, double, int) attribute_hidden;
extern double __kernel_cos(double, double) attribute_hidden;
extern double __kernel_tan(double, double, int) attribute_hidden;
extern int32_t __kernel_rem_pio2(const double *, double *, int, int, const unsigned int, const int32_t *) attribute_hidden;
#endif /* _MATH_PRIVATE_H_ */

24
src/libm/s_isinf.c Normal file
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@ -0,0 +1,24 @@
#include "SDL_internal.h"
/*
* Written by J.T. Conklin <jtc@netbsd.org>.
* Changed to return -1 for -Inf by Ulrich Drepper <drepper@cygnus.com>.
* Public domain.
*/
/*
* isinf(x) returns 1 is x is inf, -1 if x is -inf, else 0;
* no branching!
*/
#include "math.h"
#include "math_private.h"
int __isinf(double x)
{
int32_t hx,lx;
EXTRACT_WORDS(hx,lx,x);
lx |= (hx & 0x7fffffff) ^ 0x7ff00000;
lx |= -lx;
return ~(lx >> 31) & (hx >> 30);
}
libm_hidden_def(__isinf)

24
src/libm/s_isinff.c Normal file
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@ -0,0 +1,24 @@
#include "SDL_internal.h"
/*
* Written by J.T. Conklin <jtc@netbsd.org>.
* Public domain.
*/
/*
* isinff(x) returns 1 if x is inf, -1 if x is -inf, else 0;
* no branching!
*/
#include "math.h"
#include "math_private.h"
int __isinff (float x)
{
int32_t ix,t;
GET_FLOAT_WORD(ix,x);
t = ix & 0x7fffffff;
t ^= 0x7f800000;
t |= -t;
return ~(t >> 31) & (ix >> 30);
}
libm_hidden_def(__isinff)

31
src/libm/s_isnan.c Normal file
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@ -0,0 +1,31 @@
#include "SDL_internal.h"
/*
* ====================================================
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
*
* Developed at SunPro, a Sun Microsystems, Inc. business.
* Permission to use, copy, modify, and distribute this
* software is freely granted, provided that this notice
* is preserved.
* ====================================================
*/
/*
* isnan(x) returns 1 is x is nan, else 0;
* no branching!
*/
#include "math.h"
#include "math_private.h"
int __isnan(double x)
{
int32_t hx,lx;
EXTRACT_WORDS(hx,lx,x);
hx &= 0x7fffffff;
hx |= (u_int32_t)(lx|(-lx))>>31;
hx = 0x7ff00000 - hx;
return (int)(((u_int32_t)hx)>>31);
}
weak_alias(__isnan, isnan)
libm_hidden_def(__isnan)

33
src/libm/s_isnanf.c Normal file
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@ -0,0 +1,33 @@
#include "SDL_internal.h"
/* s_isnanf.c -- float version of s_isnan.c.
* Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
*/
/*
* ====================================================
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
*
* Developed at SunPro, a Sun Microsystems, Inc. business.
* Permission to use, copy, modify, and distribute this
* software is freely granted, provided that this notice
* is preserved.
* ====================================================
*/
/*
* isnanf(x) returns 1 is x is nan, else 0;
* no branching!
*/
#include "math.h"
#include "math_private.h"
int __isnanf(float x)
{
int32_t ix;
GET_FLOAT_WORD(ix,x);
ix &= 0x7fffffff;
ix = 0x7f800000 - ix;
return (int)(((u_int32_t)(ix))>>31);
}
libm_hidden_def(__isnanf)

40
src/stdlib/SDL_stdlib.c
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@ -272,6 +272,46 @@ float SDL_fmodf(float x, float y)
#endif
}
SDL_bool SDL_isinf(double x)
{
#ifdef HAVE_ISINF
return isinf(x);
#else
return SDL_uclibc_isinf(x);
#endif
}
SDL_bool SDL_isinff(float x)
{
#ifdef HAVE_ISINF_FLOAT_MACRO
return isinf(x);
#elif defined(HAVE_ISINFF)
return isinff(x);
#else
return SDL_uclibc_isinff(x);
#endif
}
SDL_bool SDL_isnan(double x)
{
#ifdef HAVE_ISNAN
return isnan(x);
#else
return SDL_uclibc_isnan(x);
#endif
}
SDL_bool SDL_isnanf(float x)
{
#ifdef HAVE_ISNAN_FLOAT_MACRO
return isnan(x);
#elif defined(HAVE_ISNANF)
return isnanf(x);
#else
return SDL_uclibc_isnanf(x);
#endif
}
double SDL_log(double x)
{
#ifdef HAVE_LOG