check is character is int code example

Example 1: test if character is number python string

>>> 'A'.isdigit()
False
>>> '1'.isdigit()
True

Example 2: c check if char is number

char c = 'a'; // or whatever

if (isalpha(c)) {
    puts("it's a letter");
} else if (isdigit(c)) {
    puts("it's a digit");
} else {
    puts("something else?");
}