diff options
Diffstat (limited to 'math/test-misc.c')
-rw-r--r-- | math/test-misc.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/math/test-misc.c b/math/test-misc.c index 862e11f..1dc4d90 100644 --- a/math/test-misc.c +++ b/math/test-misc.c @@ -1235,5 +1235,22 @@ main (void) } #endif +#if !defined NO_LONG_DOUBLE && LDBL_MANT_DIG >= DBL_MANT_DIG + 4 + volatile long double ld5 = nextafter (0.0, 1.0) / 16.0L; + volatile double d5; + (void) &ld5; + int i; + for (i = 0; i <= 32; i++) + { + d5 = ld5 * i; + (void) &d5; + if (d5 != (i <= 8 ? 0 : i < 24 ? 1 : 2) * nextafter (0.0, 1.0)) + { + printf ("%La incorrectly rounded to %a\n", ld5 * i, d5); + result = 1; + } + } +#endif + return result; } |