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-rw-r--r--strtoi32.c27
1 files changed, 24 insertions, 3 deletions
diff --git a/strtoi32.c b/strtoi32.c
index a19cc73..4a768e8 100644
--- a/strtoi32.c
+++ b/strtoi32.c
@@ -7,13 +7,13 @@
int_least32_t
-libsimple_strtoi32(const char *restrict nptr, char **restrict end, int base) /* TODO test, man */
+libsimple_strtoi32(const char *restrict nptr, char **restrict end, int base)
{
intmax_t r = strtoimax(nptr, end, base);
- if(r < RET_MIN) {
+ if (r < RET_MIN) {
r = RET_MIN;
errno = ERANGE;
- } else if(r > RET_MAX) {
+ } else if (r > RET_MAX) {
r = RET_MAX;
errno = ERANGE;
}
@@ -27,6 +27,27 @@ libsimple_strtoi32(const char *restrict nptr, char **restrict end, int base) /*
int
main(void)
{
+ char *e;
+ errno = 0;
+ assert(strtoi32("0x7FFFFFFF", NULL, 0) == INT32_C(0x7FFFFFFF) && !errno);
+ assert(strtoi32("0x7FFFFFFF", NULL, 16) == INT32_C(0x7FFFFFFF) && !errno);
+ assert(strtoi32("7FFFFFFF", NULL, 16) == INT32_C(0x7FFFFFFF) && !errno);
+ assert(strtoi32("0x7FFFFFFF", NULL, 10) == 0 && !errno);
+ assert(strtoi32("0x7FFFFFFF", &e, 0) == INT32_C(0x7FFFFFFF) && !*e && !errno);
+ assert(strtoi32("0x7FFFFFFF ", &e, 16) == INT32_C(0x7FFFFFFF) && *e == ' ' && !errno);
+ assert(strtoi32("0x7FFFFFFF", &e, 10) == 0 && *e == 'x' && !errno);
+ assert(strtoi32("2147483647", &e, 10) == INT32_C(0x7FFFFFFF) && !*e && !errno);
+ assert(strtoi32("-2147483647", &e, 10) == INT32_C(-2147483647) && !*e && !errno);
+ assert(strtoi32("-2147483648", &e, 10) == INT32_C(-2147483648) && !*e && !errno);
+ assert(strtoi32("1234", &e, 10) == 1234 && !*e && !errno);
+ assert(strtoi32("1234", &e, 8) == 01234 && !*e && !errno);
+ assert(strtoi32("01234", &e, 0) == 01234 && !*e && !errno);
+ assert(strtoi32("2147483648", &e, 10) == INT32_C(2147483647) && !*e && errno == ERANGE);
+ errno = 0;
+ assert(strtoi32("-2147483649", &e, 10) == INT32_C(-2147483648) && !*e && errno == ERANGE);
+ errno = 0;
+ assert(!strtoi32("1", &e, -10000) && errno == EINVAL);
+ errno = 0;
return 0;
}