jurjen.ladeniusandClaude Opus 4.8
f3340e86c6
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
109 lines
4.0 KiB
C
109 lines
4.0 KiB
C
/*-------------------------------------------------------------------------
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math.h: Floating point math function declarations
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Copyright (C) 2001, Jesus Calvino-Fraga, jesusc@ieee.org
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This library is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2, or (at your option) any
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later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this library; see the file COPYING. If not, write to the
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Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA.
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As a special exception, if you link this library with other files,
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some of which are compiled with SDCC, to produce an executable,
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this library does not by itself cause the resulting executable to
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be covered by the GNU General Public License. This exception does
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not however invalidate any other reasons why the executable file
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might be covered by the GNU General Public License.
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-------------------------------------------------------------------------*/
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/* Version 1.0 - Initial release */
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#ifndef _INC_MATH
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#define _INC_MATH
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#define HUGE_VALF 3.402823466e+38
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#define PI 3.1415926536
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#define TWO_PI 6.2831853071
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#define HALF_PI 1.5707963268
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#define QUART_PI 0.7853981634
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#define iPI 0.3183098862
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#define iTWO_PI 0.1591549431
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#define TWO_O_PI 0.6366197724
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/* EPS=B**(-t/2), where B is the radix of the floating-point representation
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and there are t base-B digits in the significand. Therefore, for floats
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EPS=2**(-12). Also define EPS2=EPS*EPS. */
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#define EPS 244.14062E-6
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#define EPS2 59.6046E-9
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union float_long
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{
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float f;
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long l;
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};
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#if defined(__SDCC_MATH_LIB) && defined(__SDCC_mcs51) && !defined(__SDCC_USE_XSTACK) && !defined(__SDCC_STACK_AUTO) && !defined(_SDCC_NO_ASM_LIB_FUNCS)
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/* Compile the mcs51 assembly version only when all these
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conditions are met. Since not all the functions are
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reentrant, do not compile with --stack-auto is used. */
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#define MATH_ASM_MCS51
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#endif
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/* Functions on the z80 and related are always reentrant and so the "reentrant" */
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/* keyword is not defined. */
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#if defined(__SDCC_z80) || defined(__SDCC_z180) || defined(__SDCC_r2k) || defined(__SDCC_r2ka) || defined(__SDCC_r3ka) || defined(__SDCC_tlcs90) || defined(__SDCC_sm83) || defined(__SDCC_ez80_z80) || defined(__SDCC_z80n) || defined(__SDCC_stm8)
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#define _FLOAT_FUNC_REENTRANT
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#else
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#define _FLOAT_FUNC_REENTRANT __reentrant
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#endif
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/**********************************************
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* Prototypes for float ANSI C math functions *
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**********************************************/
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/* Trigonometric functions */
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float sinf(float x) _FLOAT_FUNC_REENTRANT;
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float cosf(float x) _FLOAT_FUNC_REENTRANT;
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float tanf(float x) _FLOAT_FUNC_REENTRANT;
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float cotf(float x) _FLOAT_FUNC_REENTRANT;
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float asinf(float x) _FLOAT_FUNC_REENTRANT;
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float acosf(float x) _FLOAT_FUNC_REENTRANT;
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float atanf(float x) _FLOAT_FUNC_REENTRANT;
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float atan2f(float x, float y);
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/* Hyperbolic functions */
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float sinhf(float x) _FLOAT_FUNC_REENTRANT;
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float coshf(float x) _FLOAT_FUNC_REENTRANT;
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float tanhf(float x) _FLOAT_FUNC_REENTRANT;
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/* Exponential, logarithmic and power functions */
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float expf(float x) _FLOAT_FUNC_REENTRANT;
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float logf(float x) _FLOAT_FUNC_REENTRANT;
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float log10f(float x) _FLOAT_FUNC_REENTRANT;
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float powf(float x, float y);
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float sqrtf(float a) _FLOAT_FUNC_REENTRANT;
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/* Nearest integer, absolute value, and remainder functions */
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float fabsf(float x) _FLOAT_FUNC_REENTRANT;
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float frexpf(float x, int *pw2);
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float ldexpf(float x, int pw2);
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float ceilf(float x) _FLOAT_FUNC_REENTRANT;
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float floorf(float x) _FLOAT_FUNC_REENTRANT;
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float modff(float x, float * y);
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int isnan(float f);
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int isinf(float f);
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#endif /* _INC_MATH */
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