This is not a bug.
In the man page of the isdigit:
These functions check whether c, which must have the value of an
unsigned char or EOF, falls into a certain character class according
to the current locale.
You should first test your value with a isascii if using isdigit.
Your code has a maj
dear maintainer:
the fallowing is a small sample of the code that contains all the info
to reproduce the problem.
the C library function isdigit() fails and causes segmention fault when
the input is is not numeric like xx.
COMPILE COMMAND : >> gcc -ansi --version -Wall -o ch2-13.out-lm
ch2-13
