libs/libnotimpl/src/math.c

   1 /* vi: set sw=4 ts=4: */
   2
   3 #include <math.h>
   4
   5
   6 /* cosf for uClibc
   7  *
   8  * wrapper for cos(x)
   9  */
  10
  11 #ifdef __STDC__
  12         float cosf(float x)
  13 #else
  14         float cosf(x)
  15         float x;
  16 #endif
  17 {
  18         return (float) cos( (double)x );
  19 }
  20
  21
  22 /* sinf for uClibc
  23  *
  24  * wrapper for sin(x)
  25  */
  26
  27 #ifdef __STDC__
  28         float sinf(float x)
  29 #else
  30         float sinf(x)
  31         float x;
  32 #endif
  33 {
  34         return (float) sin( (double)x );
  35 }
  36
  37
  38 /* ceilf for uClibc
  39  *
  40  * wrapper for ceil(x)
  41  */
  42
  43 #ifdef __STDC__
  44         float ceilf(float x)
  45 #else
  46         float ceilf(x)
  47         float x;
  48 #endif
  49 {
  50         return (float) ceil( (double)x );
  51 }
  52
  53
  54 /* rintf for uClibc
  55  *
  56  * wrapper for rint(x)
  57  */
  58
  59 #ifdef __STDC__
  60         float rintf(float x)
  61 #else
  62         float rintf(x)
  63         float x;
  64 #endif
  65 {
  66         return (float) rint( (double)x );
  67 }
  68
  69 /* logf for uClibc
  70  *
  71  * wrapper for logf(x)
  72  */
  73
  74 #ifdef __STDC__
  75         float logf(float x)
  76 #else
  77         float logf(x)
  78         float x;
  79 #endif
  80 {
  81         return (float) logf( (double)x );
  82 }
  83
  84 /* expf for uClibc
  85  *
  86  * wrapper for expf(x)
  87  */
  88
  89 #ifdef __STDC__
  90     float expf(float x)
  91 #else
  92     float expf(x)
  93     float x;
  94 #endif
  95 {
  96     return (float) expf( (double)x );
  97 }
  98
  99 /* lround for uClibc
 100  *
 101  * wrapper for lround(x)
 102  */
 103
 104 #ifdef __STDC__
 105     long lround(double x)
 106 #else
 107     long lround(x)
 108     double x;
 109 #endif
 110 {
 111     return (long) ((x - ((long)x) >= 0.5f) ? (((long)x) + 1) : ((long)x));
 112 }
 113
 114 /* lround for uClibc
 115  *
 116  * wrapper for roundf(x)
 117  */
 118
 119 #ifdef __STDC__
 120     float roundf(float x)
 121 #else
 122     float roundf(x)
 123         float x;
 124 #endif
 125 {
 126         return (float) ((x - ((long)x) >= 0.5f) ? (((long)x) + 1) : ((long)x));
 127 }
 128