Indicates if a character is a hexadecimal digit (0 to 9, A to F, or
a to f) in the program's current locale.
Format
#include <ctype.h>
int isxdigit (int character);
Argument
- character
- An object of type int. The value of character must be
representable as an unsigned char in the current locale, or must
equal the value of the macro EOF. If it has any other value, the
behavior is undefined.
Return Values
| nonzero | If a hexadecimal
digit. |
| 0 | If not a
hexadecimal digit. |
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