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-rw-r--r--strtouhh.c36
1 files changed, 34 insertions, 2 deletions
diff --git a/strtouhh.c b/strtouhh.c
index c6ec130..b163b7f 100644
--- a/strtouhh.c
+++ b/strtouhh.c
@@ -4,10 +4,10 @@
unsigned char
-libsimple_strtouhh(const char *restrict nptr, char **restrict end, int base) /* TODO test, man */
+libsimple_strtouhh(const char *restrict nptr, char **restrict end, int base)
{
unsigned long int r = strtoul(nptr, end, base);
- if(r > UCHAR_MAX) {
+ if (r > UCHAR_MAX) {
r = UCHAR_MAX;
errno = ERANGE;
}
@@ -18,9 +18,41 @@ libsimple_strtouhh(const char *restrict nptr, char **restrict end, int base) /*
#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", (unsigned int)UCHAR_MAX);
+ errno = 0;
+ assert(strtouhh(str, NULL, 0) == UCHAR_MAX && !errno);
+ assert(strtouhh(str, NULL, 16) == UCHAR_MAX && !errno);
+ assert(strtouhh(&str[2], NULL, 16) == UCHAR_MAX && !errno);
+ assert(strtouhh(str, NULL, 10) == 0 && !errno);
+ assert(strtouhh(str, &e, 0) == UCHAR_MAX && !*e && !errno);
+ assert(strtouhh(str, &e, 10) == 0 && *e == 'x' && !errno);
+ sprintf(str, "0x%x ", (unsigned int)UCHAR_MAX);
+ assert(strtouhh(str, &e, 16) == UCHAR_MAX && *e == ' ' && !errno);
+ sprintf(str, "%u", (unsigned int)UCHAR_MAX);
+ assert(strtouhh(str, &e, 10) == UCHAR_MAX && !*e && !errno);
+ assert(strtouhh("12", &e, 10) == 12 && !*e && !errno);
+ assert(strtouhh("12", &e, 8) == 012 && !*e && !errno);
+ assert(strtouhh("012", &e, 0) == 012 && !*e && !errno);
+ sprintf(str, "%u", (unsigned int)UCHAR_MAX);
+ add_one(str);
+ assert(strtouhh(str, &e, 10) == UCHAR_MAX && !*e && errno == ERANGE);
+ errno = 0;
+ assert(!strtouhh("1", &e, -10000) && errno == EINVAL);
+ errno = 0;
return 0;
}