Validates whether a string represents a valid long long integer.
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#include "ft_check.h"
Include dependency graph for ft_is_valid_integer.c:
Functions | |
| bool | ft_is_valid_integer (const char *str) |
| Validates C-style signed integer string format. | |
| static bool | is_in_longlong_range (const char *str, bool negative) |
Checks if a numeric string fits within the long long range. | |
Detailed Description
Validates whether a string represents a valid long long integer.
- Date
- 2025/01/31
This module implements a utility function that determines whether a string is a valid signed decimal integer fitting within the long long range. It supports an optional '+' or '-' sign, followed by digits only.
The check is purely lexical and does not convert the string unless valid.
