isdigit function >> ctype.h >> header files in c Programming
isdigit function > ctype.h > header files in c Programming
Syntax | int isdigit (int c) |
Header File | ctype.h |
Return Value |
|
Live Example :
void main()
{
char ch = '1';
if( isdigit (ch))
printf("nThis is Digit");
else
printf("nThis is not a Digit");
}
Output :
This is Digit
Explanation of statement :
if(isdigit(ch))
- character ch is passed to function isdigit
- if ch belongs to the set of digits[0-9] then it returns non-zero value
- otherwise it returns zero .
Note :
- Positive non-zero value given to if block , will result in TRUE condition
- Zero value given to if block , will result in FALSE condition