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==isspace==

Item
Value
Header file
ctype.h
Declaration
int isspace(int ch);
Return
returns nonzero if ch is a white-space character, including space, horizontal tab, vertical tab, formfeed, carriage return, or newline character; otherwise zero is returned.

   
<source lang="cpp">#include <ctype.h>
  #include <stdio.h>
  int main(void)
  {
    char ch;
    for(;;) {
        ch = getchar();
        if(isspace(ch)){
            printf("%c is white space\n", ch);
        }
        if(ch == "."){
            break;
        }
    }
    return 0;
  }</source>