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author | das <das@FreeBSD.org> | 2007-01-03 21:28:26 +0000 |
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committer | das <das@FreeBSD.org> | 2007-01-03 21:28:26 +0000 |
commit | 269e2dc4928188503ec9fd04ee00cb8405ba6446 (patch) | |
tree | ef63a9f9fe10f450ecb9251a894e0dd5f08e9c01 /tools | |
parent | e2797fe01cc1151c85329056a387e4343995497a (diff) | |
download | FreeBSD-src-269e2dc4928188503ec9fd04ee00cb8405ba6446.zip FreeBSD-src-269e2dc4928188503ec9fd04ee00cb8405ba6446.tar.gz |
Remove the test that ensures that when the string "nan(...)" is converted
to floating-point, the result is a quiet NaN. The current implementation
may return a signaling NaN, and the vendor has no plans for changing this,
for reasons explained in the comment I added.
Diffstat (limited to 'tools')
-rw-r--r-- | tools/regression/lib/libc/stdio/test-scanfloat.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/regression/lib/libc/stdio/test-scanfloat.c b/tools/regression/lib/libc/stdio/test-scanfloat.c index 342fc73..ef6faae 100644 --- a/tools/regression/lib/libc/stdio/test-scanfloat.c +++ b/tools/regression/lib/libc/stdio/test-scanfloat.c @@ -190,7 +190,15 @@ main(int argc, char *argv[]) assert(f != f); assert(d != d); assert(ld != ld); +#if 0 + /* + * POSIX says we should only generate quiet NaNs, but the gdtoa + * author convincingly argues that if you ask for a NaN format + * based on some implementation-defined string, you should get + * what you asked for, even if it's a signaling NaN. + */ assert(fetestexcept(FE_INVALID) == 0); +#endif printf("ok 2 - scanfloat\n"); |