Add tests and man pages

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

1 files changed, 19 insertions, 2 deletions

diff --git a/strtou16.c b/strtou16.c
index c64488b..33fbffa 100644
--- a/strtou16.c
+++ b/strtou16.c
@@ -6,10 +6,10 @@
 
 
 uint_least16_t
-libsimple_strtou16(const char *restrict nptr, char **restrict end, int base) /* TODO test, man */
+libsimple_strtou16(const char *restrict nptr, char **restrict end, int base)
 {
 	uintmax_t r = strtoumax(nptr, end, base);
-	if(r > RET_MAX) {
+	if (r > RET_MAX) {
 		r = RET_MAX;
 		errno = ERANGE;
 	}
@@ -23,6 +23,23 @@ libsimple_strtou16(const char *restrict nptr, char **restrict end, int base) /*
 int
 main(void)
 {
+	char *e;
+	errno = 0;
+	assert(strtou16("0xFFFF", NULL, 0) == UINT16_C(0xFFFF) && !errno);
+	assert(strtou16("0xFFFF", NULL, 16) == UINT16_C(0xFFFF) && !errno);
+	assert(strtou16("FFFF", NULL, 16) == UINT16_C(0xFFFF) && !errno);
+	assert(strtou16("0xFFFF", NULL, 10) == 0 && !errno);
+	assert(strtou16("0xFFFF", &e, 0) == UINT16_C(0xFFFF) && !*e && !errno);
+	assert(strtou16("0xFFFF ", &e, 16) == UINT16_C(0xFFFF) && *e == ' ' && !errno);
+	assert(strtou16("0xFFFF", &e, 10) == 0 && *e == 'x' && !errno);
+	assert(strtou16("65535", &e, 10) == UINT16_C(0xFFFF) && !*e && !errno);
+	assert(strtou16("1234", &e, 10) == 1234 && !*e && !errno);
+	assert(strtou16("1234", &e, 8) == 01234 && !*e && !errno);
+	assert(strtou16("01234", &e, 0) == 01234 && !*e && !errno);
+	assert(strtou16("65536", &e, 10) == UINT16_C(65535) && !*e && errno == ERANGE);
+	errno = 0;
+	assert(!strtou16("1", &e, -10000) && errno == EINVAL);
+	errno = 0;
 	return 0;
 }