use alternate formula for acos asm to avoid loss of precision

[oweals/musl.git] / src / math / exp2f.c

diff --git a/src/math/exp2f.c b/src/math/exp2f.c
index 211d1875ab52faf4620889cca90be5e888c5c697..55c22eac27dd8a456c65980b37dce0f3b5b5153a 100644 (file)
--- a/src/math/exp2f.c
+++ b/src/math/exp2f.c
@@ -38,7 +38,7 @@ P2    = 0x1.ebfbe0p-3f,
 P3    = 0x1.c6b348p-5f,
 P4    = 0x1.3b2c9cp-7f;
 
-static volatile float twom100 = 0x1p-100f;
+static const volatile float twom100 = 0x1p-100f;
 
 static const double exp2ft[TBLSIZE] = {
   0x1.6a09e667f3bcdp-1,