forked from rpms/glibc
50 lines
1.5 KiB
Diff
50 lines
1.5 KiB
Diff
commit 207d64feb26279e152c50744e3c37e68491aca99
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Author: Joseph Myers <josmyers@redhat.com>
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Date: Wed Aug 14 17:15:46 2024 +0000
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Test errno setting on strtod overflow in tst-strtod-round
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We have no tests that errno is set to ERANGE on overflow of
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strtod-family functions (we do have some tests for underflow, in
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tst-strtod-underflow). Add such tests to tst-strtod-round.
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Tested for x86_64.
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diff --git a/stdlib/tst-strtod-round-skeleton.c b/stdlib/tst-strtod-round-skeleton.c
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index f60b9a00e9e8d262..1ff1977112bda7a8 100644
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--- a/stdlib/tst-strtod-round-skeleton.c
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+++ b/stdlib/tst-strtod-round-skeleton.c
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@@ -21,6 +21,7 @@
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declared in the headers. */
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#define _LIBC_TEST 1
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#define __STDC_WANT_IEC_60559_TYPES_EXT__
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+#include <errno.h>
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#include <fenv.h>
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#include <float.h>
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#include <math.h>
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@@ -205,7 +206,9 @@ struct test {
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#define GEN_ONE_TEST(FSUF, FTYPE, FTOSTR, LSUF, CSUF) \
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{ \
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feclearexcept (FE_ALL_EXCEPT); \
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+ errno = 0; \
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FTYPE f = STRTO (FSUF) (s, NULL); \
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+ int new_errno = errno; \
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if (f != expected->FSUF \
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|| (copysign ## CSUF) (1.0 ## LSUF, f) \
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!= (copysign ## CSUF) (1.0 ## LSUF, expected->FSUF)) \
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@@ -254,6 +257,14 @@ struct test {
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printf ("ignoring this exception error\n"); \
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} \
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} \
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+ if (overflow->FSUF && new_errno != ERANGE) \
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+ { \
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+ printf (FNPFXS "to" #FSUF \
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+ " (" STRM ") left errno == %d," \
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+ " not %d (ERANGE)\n", \
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+ s, new_errno, ERANGE); \
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+ result = 1; \
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+ } \
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} \
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}
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