Add tests and man pages

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 24 insertions, 3 deletions

diff --git a/strtoi8.c b/strtoi8.c
index a5d59a3..01f783a 100644
--- a/strtoi8.c
+++ b/strtoi8.c
@@ -7,13 +7,13 @@
 
 
 int_least8_t
-libsimple_strtoi8(const char *restrict nptr, char **restrict end, int base) /* TODO test, man */
+libsimple_strtoi8(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_strtoi8(const char *restrict nptr, char **restrict end, int base) /* T
 int
 main(void)
 {
+	char *e;
+	errno = 0;
+	assert(strtoi8("0x7F", NULL, 0) == INT8_C(0x7F) && !errno);
+	assert(strtoi8("0x7F", NULL, 16) == INT8_C(0x7F) && !errno);
+	assert(strtoi8("7F", NULL, 16) == INT8_C(0x7F) && !errno);
+	assert(strtoi8("0x7F", NULL, 10) == 0 && !errno);
+	assert(strtoi8("0x7F", &e, 0) == INT8_C(0x7F) && !*e && !errno);
+	assert(strtoi8("0x7F ", &e, 16) == INT8_C(0x7F) && *e == ' ' && !errno);
+	assert(strtoi8("0x7F", &e, 10) == 0 && *e == 'x' && !errno);
+	assert(strtoi8("127", &e, 10) == INT8_C(0x7F) && !*e && !errno);
+	assert(strtoi8("-127", &e, 10) == INT8_C(-127) && !*e && !errno);
+	assert(strtoi8("-128", &e, 10) == INT8_C(-128) && !*e && !errno);
+	assert(strtoi8("12", &e, 10) == 12 && !*e && !errno);
+	assert(strtoi8("12", &e, 8) == 012 && !*e && !errno);
+	assert(strtoi8("012", &e, 0) == 012 && !*e && !errno);
+	assert(strtoi8("128", &e, 10) == INT8_C(127) && !*e && errno == ERANGE);
+	errno = 0;
+	assert(strtoi8("-129", &e, 10) == INT8_C(-128) && !*e && errno == ERANGE);
+	errno = 0;
+	assert(!strtoi8("1", &e, -10000) && errno == EINVAL);
+	errno = 0;
 	return 0;
 }