write_char
#define putchar(c) write_char(STD_OUT, (c))
int write_char(int fd, char c);
write_char(STD_OUT, c);
if (write_char(fd, *text++) == ERRORS)
if (write_char(fd, *textp) == ERRORS) {
write_char(c, fg_c, bg_c);
write_char(' ', fg_c, bg_c);
void write_char(int c, int fg, int bg);
if (!write_char (c))
if (!write_char (c))
static int write_char(int c);