ascii - %c and other symbols (e.g. " ° ") not displayed after compiling -


i started learn c , want proceed learn c++. using textbook , write examples in order bit more familiar programming language , procedure.

since example given in book didn't work, tried find other similar codes. problem after compiling code, program not show , of symbols represented %c. symbols numbers 33-126 else either nothing @ or white block...

also, on previous example wanted write °c temperature , couldn't display symbol °

the example found on web not display %c symbols 

#include <stdio.h> #include <ctype.h>  int main() {     int i;     i=0;         {         printf("%i %c \n",i,i);         i++;     }     while(i<=255); }

is familiar this? why can not output %c or e.g. ° well???

anything outside range 33-126 isn't visible ascii character. 0-32 stuff backspace (8), "device control 2" (18), , space (32). 127 del, , past isn't ascii; knows how terminal handle that.


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