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Add more tests of strtod end pointer

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Although there are some tests in tst-strtod2 and tst-strtod3 for the
end pointer provided by strtod when it doesn't parse the whole string,
they aren't very thorough.  Add tests of more such cases to
tst-strtod2.

Tested for x86_64.
This commit is contained in:
Joseph Myers 2024-09-20 23:24:02 +00:00
parent 8de031bcb9
commit b5d3737b30
1 changed files with 39 additions and 2 deletions
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41
stdlib/tst-strtod2.c
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@ -1,3 +1,4 @@
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
@ -17,10 +18,46 @@ struct test_strto ## FSUF \
{ "0x.0y", 0.0 ## LSUF, 4 }, \
{ ".y", 0.0 ## LSUF, 0 }, \
{ "0.y", 0.0 ## LSUF, 2 }, \
{ ".0y", 0.0 ## LSUF, 2 } \
{ ".0y", 0.0 ## LSUF, 2 }, \
{ "1.0e", 1.0 ## LSUF, 3 }, \
{ "1.0e+", 1.0 ## LSUF, 3 }, \
{ "1.0e-", 1.0 ## LSUF, 3 }, \
{ "1.0ex", 1.0 ## LSUF, 3 }, \
{ "1.0e+x", 1.0 ## LSUF, 3 }, \
{ "1.0e-x", 1.0 ## LSUF, 3 }, \
{ "0x1p", 1.0 ## LSUF, 3 }, \
{ "0x1p+", 1.0 ## LSUF, 3 }, \
{ "0x1p-", 1.0 ## LSUF, 3 }, \
{ "0x1px", 1.0 ## LSUF, 3 }, \
{ "0x1p+x", 1.0 ## LSUF, 3 }, \
{ "0x1p-x", 1.0 ## LSUF, 3 }, \
{ "INFx", INFINITY, 3 }, \
{ "infx", INFINITY, 3 }, \
{ "INFINITx", INFINITY, 3 }, \
{ "infinitx", INFINITY, 3 }, \
{ "INFINITYY", INFINITY, 8 }, \
{ "infinityy", INFINITY, 8 }, \
{ "NANx", NAN, 3 }, \
{ "nanx", NAN, 3 }, \
{ "NAN(", NAN, 3 }, \
{ "nan(", NAN, 3 }, \
{ "NAN(x", NAN, 3 }, \
{ "nan(x", NAN, 3 }, \
{ "NAN(x)y", NAN, 6 }, \
{ "nan(x)y", NAN, 6 }, \
{ "NAN(*)y", NAN, 3 }, \
{ "nan(*)y", NAN, 3 } \
}; \
\
static int \
compare_strto ## FSUF (FTYPE x, FTYPE y) \
{ \
if (isnan (x) && isnan (y)) \
return 1; \
return x == y; \
} \
\
static int \
test_strto ## FSUF (void) \
{ \
int status = 0; \
@ -30,7 +67,7 @@ test_strto ## FSUF (void) \
{ \
char *ep; \
FTYPE r = strto ## FSUF (tests_strto ## FSUF[i].str, &ep); \
if (r != tests_strto ## FSUF[i].result) \
if (!compare_strto ## FSUF (r, tests_strto ## FSUF[i].result)) \
{ \
char buf1[FSTRLENMAX], buf2[FSTRLENMAX]; \
FTOSTR (buf1, sizeof (buf1), "%g", r); \