c if it is a decimal digit, -1 otherwiseasciiDigitValue
fn
int asciiDigitValue(char c)Determines the numeric value of a character as a decimal digit. If the character is not a decimal digit according to funcGLib.ascii_isdigit, -1 is returned.
Differs from funcGLib.unichar_digit_value because it takes a char, so there's no worry about sign extension if characters are signed.
Parameters
c | an ASCII character |
Returns
the numerical value of