isupper : isupper « ctype.h « C Tutorial

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C Tutorial » ctype.h » isupper   18. 11. 1. isupper Item Value Header file ctype.h Declaration int isupper(int ch); Return returns nonzero if ch is an uppercase letter; otherwise zero is returned. #include <ctype.h>   #include <stdio.h>   int main(void)   {     char ch;     for(;;) {       ch = getchar();       if(ch == '.'){           break;       }       if(isupper(ch)){           printf("%c is uppercase\n", ch);       }     }     return 0;   } d s a w C C is uppercase . 18. 11. isupper 18. 11. 1.  isupper

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