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Ispunct

Item Value Header filectype.h Declarationint ispunct(int ch); Returnreturns nonzero if ch is a punctuation character; otherwise zero is returned. "punctuation" includes all printing characters that are neither alphanumeric nor a space. #include <ctype.h>   #include <stdio.h>   int main(void)   {     char ch;     for(;;) {       ch = getchar();       if(ispunct(ch)){          printf("%c is punctuation\n", ch);       }       if(ch == '.'){          break;       }     }     return 0;   } fd d w s d . . is punctuation