Output single character in C

Question

When printing a single character in a C program, must I use "%1s" in the format string? Can I use something like "%c"?

Answer 1

yes, %c will print a single char:

printf("%c", 'h'); 

also, putchar/putc will work too. From "man putchar":

#include <stdio.h>  int fputc(int c, FILE *stream); int putc(int c, FILE *stream); int putchar(int c);  * fputc() writes the character c, cast to an unsigned char, to stream. * putc() is equivalent to fputc() except that it may be implemented as a macro which evaluates stream more than once. * putchar(c); is equivalent to putc(c,stdout). 

EDIT:

Also note, that if you have a string, to output a single char, you need get the character in the string that you want to output. For example:

const char *h = "hello world"; printf("%c\n", h[4]); /* outputs an 'o' character */