c - Printing the value of a 0-initialized array element prints nothing, why? -

i have initialize char array 0's. did like

char array[256] = {0};

i wanted check if worked tried testing it

#include <stdio.h>  int main() {     char s[256] = {0};     printf("%c\n", s[10]);     return 0; }

after compile , run it, command line output shows nothing.

what missing ? perhaps initialized array in wrong manner ?

tl;dr -- %c character representation. use %d see decimal 0 value.

related , c11, chapter §7.21.6.1, (emphasis mine)

c if no l length modifier present, int argument converted unsigned char, and resulting character written.

fyi, see list of printable values.

that said, hosted environment, int main() should int main(void), @ least conform standard.

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