#include <ctype.h>
Include dependency graph for isdigit.c:
Functions | |
| int | isdigit (int c) |
| Checks if the given character is a numeric character. More... | |
Function Documentation
◆ isdigit()
| int isdigit | ( | int | ch | ) |
Checks if the given character is a numeric character.
Checks if the given character is a numeric character (0123456789).
The behavior is undefined if the value of ch is not representable as unsigned char and is not equal to EOF.
- Parameters
-
ch The character to classify
- Returns
- Non-zero value if the character is a numeric character, zero otherwise.
Referenced by atoi(), atol(), atoll(), bad_input(), good_input(), isalnum(), isxdigit(), strtol(), strtoll(), and strtoul().
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