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-rw-r--r--libfonts_parse_uint32__.c38
1 files changed, 36 insertions, 2 deletions
diff --git a/libfonts_parse_uint32__.c b/libfonts_parse_uint32__.c
index f87f19e..d35ddd3 100644
--- a/libfonts_parse_uint32__.c
+++ b/libfonts_parse_uint32__.c
@@ -11,7 +11,7 @@ libfonts_parse_uint32__(uint32_t *outp, const char *value)
if (!*value)
return 0;
while (isdigit(*value)) {
- digit = (*value & 15);
+ digit = (*value++ & 15);
if (out > (UINT32_C(0xFFFFFFFF) - digit) / 10)
return 0;
out = out * 10 + digit;
@@ -29,7 +29,41 @@ libfonts_parse_uint32__(uint32_t *outp, const char *value)
int
main(void)
{
- return 0; /* TODO add test */
+ uint32_t res;
+
+#define F(S)\
+ do {\
+ res = 999;\
+ ASSERT(libfonts_parse_uint32__(&res, S) == 0);\
+ ASSERT(res == 999);\
+ } while (0)
+
+#define T(N)\
+ do {\
+ res = (uint32_t)(UINT32_C(N) ^ UINT32_C(0x87654321));\
+ ASSERT(libfonts_parse_uint32__(&res, #N) == 1);\
+ ASSERT(res == UINT32_C(N));\
+ res ^= UINT32_C(0x87654321);\
+ ASSERT(libfonts_parse_uint32__(&res, "+"#N) == 1);\
+ ASSERT(res == UINT32_C(N));\
+ F("-"#N);\
+ } while (0)
+
+ T(0);
+ T(10);
+ T(12);
+ T(1235);
+ T(53251);
+ T(4294967294);
+ T(4294967295);
+
+ F("4294967296");
+ F("11111111111");
+ F("+");
+ F("100x");
+ F("a");
+
+ return 0;
}