06-28-2013
Yes, but off to a bad start, never use a dynamic command like printf() in a tight loop when fputs() is what you want.
Man Page for fputs (all Section 3) - The UNIX and Linux Forums Consider the buffer settings on stdout, if you are using FILE* i/o, might best be matched to the output media for throughput, like 1-2^^n blocks if disk subsystems are well buffered.
Man Page for setvbuf (all Section 3) - The UNIX and Linux Forums Code for this has to be like Lucy on the bakery assembly line: count the cycles, almost. Consider that every call to printf involves parsing this template string for meta characters like '%' and dividing it into segments for different sorts of formatting. Now printf( "%.*s", 11, "----------\n" ) would be closer, as you are telling it the string length, but it still loses to fwrite( "----------\n", 11, 1, stdout ), although I always hate the forced multiply in fread()/fwrite().
Man Page for fwrite (all Section 3) - The UNIX and Linux Forums But at least the call only has to memcpy() the N bytes into the buffer if space is available.
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PUTS(3) Linux Programmer's Manual PUTS(3)
NAME
fputc, fputs, putc, putchar, puts - output of characters and strings
SYNOPSIS
#include <stdio.h>
int fputc(int c, FILE *stream);
int fputs(const char *s, FILE *stream);
int putc(int c, FILE *stream);
int putchar(int c);
int puts(const char *s);
DESCRIPTION
fputc() writes the character c, cast to an unsigned char, to stream.
fputs() writes the string s to stream, without its trailing '