File: tan.inc

package info (click to toggle)
libclc 0.2.0%2Bgit20160907-4
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 2,540 kB
  • ctags: 968
  • sloc: lisp: 7,842; ansic: 1,787; python: 623; cpp: 74; makefile: 10; pascal: 7; sh: 1
file content (17 lines) | stat: -rw-r--r-- 420 bytes parent folder | download | duplicates (2) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
 
/*
 * Note: tan(x) = sin(x)/cos(x) also, but the final assembly ends up being
 *       twice as long for R600 (maybe for others as well).
 */

#if __CLC_FPSIZE == 32
#define __CLC_CONST(x) x ## f
#else
#define __CLC_CONST(x) x
#endif

_CLC_OVERLOAD _CLC_DEF __CLC_GENTYPE tan(__CLC_GENTYPE x) {
  __CLC_GENTYPE sinx = sin(x);
  return sinx / sqrt( (__CLC_GENTYPE) __CLC_CONST(1.0) - (sinx*sinx) );
}

#undef __CLC_CONST