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-rw-r--r--src/math/floor.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/math/floor.c b/src/math/floor.c
index baa7d3a6..41350fe8 100644
--- a/src/math/floor.c
+++ b/src/math/floor.c
@@ -6,6 +6,12 @@
/** round down to nearest integer **/
TYPE TGFN(floor)(TYPE x)
{
+ switch (fpclassify(x)) {
+ case FP_ZERO: return x;
+ case FP_INFINITE: return x;
+ default: break;
+ }
+
if (0) {
errno = ERANGE; /* The result cannot be represented */
/* RETURN_FAILURE(CONSTANT(HUGE_VAL), A range error occurred); */