Phillip Johnston

https://embeddedartistry.com [email protected]

@embeddedartistry Mt. Shasta, CA I build embedded systems.

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Phillip Johnston

Break with the standard: strnstr, strtok return const char *

In strtok: ``` spanp = (char*)(uintptr_t)delim; ```

Break with the standard: strnstr, strtok return const char *

strstr is guilty: ``` return (char*)(uintptr_t)string; ``` (two places)

Break with the standard: strnstr, strtok return const char *

__memrchr: ``` return (void*)(uintptr_t)(s + n); ```

Break with the standard: strnstr, strtok return const char *

__strchrnul

Break with the standard: strnstr, strtok return const char *

strtol ``` *endptr = (char*)(uintptr_t)(any ? s - 1 : nptr); *endptr = (char*)(uintptr_t)nptr; ``` and others

Break with the standard: strnstr, strtok return const char *

memmem... ``` return (void*)(uintptr_t)cur; ```

Break with the standard: strnstr, strtok return const char *

bsearch: ``` return ((void*)(uintptr_t)p); ```

Break with the standard: strnstr, strtok return const char *

strtoll: ``` *endptr = (char*)(uintptr_t)(any ? s - 1 : nptr); *endptr = (char*)(uintptr_t)nptr; ```

Break with the standard: strnstr, strtok return const char *

strtoull: ``` *endptr = (char*)(uintptr_t)(any ? s - 1 : nptr); ```

Break with the standard: strnstr, strtok return const char *

Just referring to the standard libc. I'd like to provide safe equivalents for these functions which don't cast. The unsafe variants (standard implementation) can then call the safe variants and...