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/*
math.h - mathematical functions
Author : Michael Stumpf
Michael.Stumpf@t-online.de
__ATTR_CONST__ added by marekm@linux.org.pl for functions
that "do not examine any values except their arguments, and have
no effects except the return value", for better optimization by gcc.
*/
#ifndef __MATH_H
#define __MATH_H
#define M_PI 3.141592653589793238462643
#define M_SQRT2 1.4142135623730950488016887
#ifndef __ATTR_CONST__
#define __ATTR_CONST__ __attribute__((__const__))
#endif
#ifdef __cplusplus
extern "C" {
#endif
extern double cos(double) __ATTR_CONST__;
extern double fabs(double) __ATTR_CONST__;
#if 0
/* fabs seems to be built in already */
extern inline double fabs( double __x )
{ double __res;
__asm__ __volatile__ ("andi %D0,0x7F \n\t"
: "=d" (__res) : "0" (__x) );
return __res;
}
#endif
extern double fmod(double, double) __ATTR_CONST__;
extern double modf(double, double *);
extern double sin(double) __ATTR_CONST__;
extern double sqrt(double) __ATTR_CONST__;
extern double tan(double) __ATTR_CONST__;
extern double floor(double) __ATTR_CONST__;
extern double ceil(double) __ATTR_CONST__;
extern double frexp(double, int *);
extern double ldexp(double,int) __ATTR_CONST__;
extern double exp(double) __ATTR_CONST__;
extern double cosh(double) __ATTR_CONST__;
extern double sinh(double) __ATTR_CONST__;
extern double tanh(double) __ATTR_CONST__;
extern double acos(double) __ATTR_CONST__;
extern double asin(double) __ATTR_CONST__;
extern double atan(double) __ATTR_CONST__;
extern double atan2(double, double) __ATTR_CONST__;
extern double log(double) __ATTR_CONST__;
extern double log10(double) __ATTR_CONST__;
extern double pow(double, double) __ATTR_CONST__;
extern double strtod(const char *s, char **endptr);
/* non-standard functions */
extern double square(double) __ATTR_CONST__;
extern double inverse(double) __ATTR_CONST__;
#ifdef __cplusplus
}
#endif
#endif /* _MATH_H */
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