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author | Mattias Andrée <maandree@kth.se> | 2023-04-09 20:05:12 +0200 |
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committer | Mattias Andrée <maandree@kth.se> | 2023-04-09 20:05:12 +0200 |
commit | bbc81527ffbbb1cb26dfd145d492bdd613cd7ae2 (patch) | |
tree | 1bdaf0b894cf933f7d96951a516b037cde2f32c1 /strtou.c | |
parent | Improve makefile and fix a bug (diff) | |
download | libsimple-bbc81527ffbbb1cb26dfd145d492bdd613cd7ae2.tar.gz libsimple-bbc81527ffbbb1cb26dfd145d492bdd613cd7ae2.tar.bz2 libsimple-bbc81527ffbbb1cb26dfd145d492bdd613cd7ae2.tar.xz |
Add tests and man pages
Signed-off-by: Mattias Andrée <maandree@kth.se>
Diffstat (limited to 'strtou.c')
-rw-r--r-- | strtou.c | 36 |
1 files changed, 34 insertions, 2 deletions
@@ -4,10 +4,10 @@ unsigned int -libsimple_strtou(const char *restrict nptr, char **restrict end, int base) /* TODO test, man */ +libsimple_strtou(const char *restrict nptr, char **restrict end, int base) { unsigned long int r = strtoul(nptr, end, base); - if(r > UINT_MAX) { + if (r > UINT_MAX) { r = UINT_MAX; errno = ERANGE; } @@ -18,9 +18,41 @@ libsimple_strtou(const char *restrict nptr, char **restrict end, int base) /* TO #else #include "test.h" +static void +add_one(char *buf) +{ + char *p = strchr(buf, '\0'); + while (*--p == '9') + *p = '0'; + *p += 1; +} + int main(void) { + char str[128]; + char *e; + sprintf(str, "0x%x", UINT_MAX); + errno = 0; + assert(strtou(str, NULL, 0) == UINT_MAX && !errno); + assert(strtou(str, NULL, 16) == UINT_MAX && !errno); + assert(strtou(&str[2], NULL, 16) == UINT_MAX && !errno); + assert(strtou(str, NULL, 10) == 0 && !errno); + assert(strtou(str, &e, 0) == UINT_MAX && !*e && !errno); + assert(strtou(str, &e, 10) == 0 && *e == 'x' && !errno); + sprintf(str, "0x%x ", UINT_MAX); + assert(strtou(str, &e, 16) == UINT_MAX && *e == ' ' && !errno); + sprintf(str, "%u", UINT_MAX); + assert(strtou(str, &e, 10) == UINT_MAX && !*e && !errno); + assert(strtou("1234", &e, 10) == 1234 && !*e && !errno); + assert(strtou("1234", &e, 8) == 01234 && !*e && !errno); + assert(strtou("01234", &e, 0) == 01234 && !*e && !errno); + sprintf(str, "%u", UINT_MAX); + add_one(str); + assert(strtou(str, &e, 10) == UINT_MAX && !*e && errno == ERANGE); + errno = 0; + assert(!strtou("1", &e, -10000) && errno == EINVAL); + errno = 0; return 0; } |