path: root/src/math/expm1.c
diff options
authorSzabolcs Nagy <>2013-09-06 18:35:55 +0000
committerSzabolcs Nagy <>2013-09-06 18:35:55 +0000
commit9b0fcb441a44456c7b071c7cdaf90403f81ec05a (patch)
treeebb08b777b53c318dc8ba55cd2979a17689843d6 /src/math/expm1.c
parentf657fe4b9f734d7fdea515af8dffbf7c28ce4fbc (diff)
math: remove STRICT_ASSIGN macro
gcc did not always drop excess precision according to c99 at assignments before version 4.5 even if -std=c99 was requested which caused badly broken mathematical functions on i386 when FLT_EVAL_METHOD!=0 but STRICT_ASSIGN was not used consistently and it is worked around for old compilers with -ffloat-store so it is no longer needed the new convention is to get the compiler respect c99 semantics and when excess precision is not harmful use float_t or double_t or to specialize code using FLT_EVAL_METHOD
Diffstat (limited to 'src/math/expm1.c')
1 files changed, 1 insertions, 1 deletions
diff --git a/src/math/expm1.c b/src/math/expm1.c
index a7eb2c0b..ac1e61e4 100644
--- a/src/math/expm1.c
+++ b/src/math/expm1.c
@@ -155,7 +155,7 @@ double expm1(double x)
hi = x - t*ln2_hi; /* t*ln2_hi is exact here */
lo = t*ln2_lo;
- STRICT_ASSIGN(double, x, hi - lo);
+ x = hi-lo;
c = (hi-x)-lo;
} else if (hx < 0x3c900000) { /* |x| < 2**-54, return x */
if (hx < 0x00100000)