isdigit
isdigit
Defined in header <ctype.h> | ||
|---|---|---|
int isdigit( int ch ); |
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 | - | character to classify |
Return value
Non-zero value if the character is a numeric character, zero otherwise.
Notes
