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Diffstat (limited to 'lib/mlibc/options/ansi/musl-generic-math/tanhf.c')
-rw-r--r--lib/mlibc/options/ansi/musl-generic-math/tanhf.c39
1 files changed, 0 insertions, 39 deletions
diff --git a/lib/mlibc/options/ansi/musl-generic-math/tanhf.c b/lib/mlibc/options/ansi/musl-generic-math/tanhf.c
deleted file mode 100644
index 10636fb..0000000
--- a/lib/mlibc/options/ansi/musl-generic-math/tanhf.c
+++ /dev/null
@@ -1,39 +0,0 @@
-#include "libm.h"
-
-float tanhf(float x)
-{
- union {float f; uint32_t i;} u = {.f = x};
- uint32_t w;
- int sign;
- float t;
-
- /* x = |x| */
- sign = u.i >> 31;
- u.i &= 0x7fffffff;
- x = u.f;
- w = u.i;
-
- if (w > 0x3f0c9f54) {
- /* |x| > log(3)/2 ~= 0.5493 or nan */
- if (w > 0x41200000) {
- /* |x| > 10 */
- t = 1 + 0/x;
- } else {
- t = expm1f(2*x);
- t = 1 - 2/(t+2);
- }
- } else if (w > 0x3e82c578) {
- /* |x| > log(5/3)/2 ~= 0.2554 */
- t = expm1f(2*x);
- t = t/(t+2);
- } else if (w >= 0x00800000) {
- /* |x| >= 0x1p-126 */
- t = expm1f(-2*x);
- t = -t/(t+2);
- } else {
- /* |x| is subnormal */
- FORCE_EVAL(x*x);
- t = x;
- }
- return sign ? -t : t;
-}