Check if a string representing float/unsigned int is too big...

Does strtoull always return a valid number or set errno?...

strtoull() Availbility in C89...

stroll, strol functions not giving correct output for long_min...

How to parse a string containing an integer and check if greater than a maximum in c++...

Output of strtoull() loses precision when converted to double and then back to uint64_t...

Surprising behavior of strtoull("-1", NULL, 0) and other negative values...

C: Convert string to unsigned long long Error...

strtoull use properly in C...

strtoul() not working as expected?...

token to unsigned printing odd values...

strtoull "seems" to return a wrong value...