1 #include "pmath.h"

     2 #include <math.h>

     3 #include <stdlib.h>

     4 #include <stdint.h>

     5 

     6 /*

     7  * power raises base to the power power.

     8  * This is equivalent to exp(power*ln(base)). Therefore base should be non-negative.

     9  */

    10 float fpcrtl_power(float base, float exponent)

    11 {

    12     return exp(exponent * log(base));

    13 }

    14 

    15 /* Currently the games only uses sign of an integer */

    16 int fpcrtl_signi(int x)

    17 {

    18     if(x > 0){

    19         return 1;

    20     }

    21     else if(x < 0){

    22         return -1;

    23     }

    24     else{

    25         return 0;

    26     }

    27 }

    28 

    29 float fpcrtl_csc(float x)

    30 {

    31     return 1 / sin(x);

    32 }

    33 

    34 float __attribute__((overloadable)) fpcrtl_abs(float x)

    35 {

    36     return fabs(x);

    37 }

    38 double __attribute__((overloadable)) fpcrtl_abs(double x)

    39 {

    40     return fabs(x);

    41 }

    42 int __attribute__((overloadable)) fpcrtl_abs(int x)

    43 {

    44     return abs(x);

    45 }

    46 

    47 int64_t __attribute__((overloadable)) fpcrtl_abs(int64_t x)

    48 {

    49     return x < 0 ? -x : x;

    50 }