puts writes a string to the output, and follows it with a newline character.

Example: Program which uses gets and puts to double space typed input.

include <stdio.h main() { char line[256]; /* Define string sufficiently large to store a line of input */ while(gets(line) != NULL) /* Read line */ { puts(line); /* Print line */ printf(\n); /* Print blank line */ } }

Note that putchar, printf and puts can be freely used together. So can getchar, scanf and gets.