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-rw-r--r--lib/mlibc/options/ansi/musl-generic-math/acoshf.c26
1 files changed, 0 insertions, 26 deletions
diff --git a/lib/mlibc/options/ansi/musl-generic-math/acoshf.c b/lib/mlibc/options/ansi/musl-generic-math/acoshf.c
deleted file mode 100644
index 8a4ec4d..0000000
--- a/lib/mlibc/options/ansi/musl-generic-math/acoshf.c
+++ /dev/null
@@ -1,26 +0,0 @@
-#include "libm.h"
-
-#if FLT_EVAL_METHOD==2
-#undef sqrtf
-#define sqrtf sqrtl
-#elif FLT_EVAL_METHOD==1
-#undef sqrtf
-#define sqrtf sqrt
-#endif
-
-/* acosh(x) = log(x + sqrt(x*x-1)) */
-float acoshf(float x)
-{
- union {float f; uint32_t i;} u = {x};
- uint32_t a = u.i & 0x7fffffff;
-
- if (a < 0x3f800000+(1<<23))
- /* |x| < 2, invalid if x < 1 or nan */
- /* up to 2ulp error in [1,1.125] */
- return log1pf(x-1 + sqrtf((x-1)*(x-1)+2*(x-1)));
- if (a < 0x3f800000+(12<<23))
- /* |x| < 0x1p12 */
- return logf(2*x - 1/(x+sqrtf(x*x-1)));
- /* x >= 0x1p12 */
- return logf(x) + 0.693147180559945309417232121458176568f;
-}