Is char a letter : Char Validation « Data Type « C / ANSI-C

1. C / ANSI-C
2. Data Type
3. Char Validation

Is char a letter

#include <ctype.h>
#include <stdio.h>

int main(void)
{
  char ch;

  for(;;) {
  ch = getchar();
  if(ch == '.') break;
  if(isalpha(ch)) printf("%c is a letter\n", ch);
  }

  return 0;
}

           
       

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