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Correct return type of strlen function #4

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Merged
merged 1 commit into from
Jun 29, 2025
Merged

Correct return type of strlen function #4

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6 changes: 3 additions & 3 deletions lib/libc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -20,14 +20,14 @@ static inline int byte_is_match(uint32_t w, uint32_t pat)
}

/* strlen that scans by words whenever possible for efficiency. */
int32_t strlen(const char *s)
size_t strlen(const char *s)
{
const char *p = s;

/* Align pointer to word boundary (4 bytes) */
while ((uint32_t) p & 3) {
if (!*p) /* If null terminator is found byte-by-byte */
return (int32_t) (p - s);
return (size_t) (p - s);
p++;
}

Expand All @@ -42,7 +42,7 @@ int32_t strlen(const char *s)
p = (const char *) w;
while (*p) /* Scan byte-by-byte until the null terminator. */
p++;
return (int32_t) (p - s); /* Return total length. */
return (size_t) (p - s); /* Return total length. */
}

void *memcpy(void *dst, const void *src, uint32_t len)
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