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Diffstat (limited to 'sysdeps/ieee754/ldbl-128ibm/s_logbl.c')
-rw-r--r--sysdeps/ieee754/ldbl-128ibm/s_logbl.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/sysdeps/ieee754/ldbl-128ibm/s_logbl.c b/sysdeps/ieee754/ldbl-128ibm/s_logbl.c
index 22e5fc2..3c07c5e 100644
--- a/sysdeps/ieee754/ldbl-128ibm/s_logbl.c
+++ b/sysdeps/ieee754/ldbl-128ibm/s_logbl.c
@@ -22,6 +22,7 @@
#include <math.h>
#include <math_private.h>
#include <math_ldbl_opt.h>
+#include <fix-int-fp-convert-zero.h>
long double
__logbl (long double x)
@@ -53,6 +54,8 @@ __logbl (long double x)
if ((hxs ^ lx) < 0 && (lx & 0x7fffffffffffffffLL) != 0)
rhx--;
}
+ if (FIX_INT_FP_CONVERT_ZERO && rhx == 1023)
+ return 0.0L;
return (long double) (rhx - 1023);
}
#ifndef __logbl