C compilation errors on using stdprn

My OS is: Windows 8

IDE: VS 2012

Here is my C program. (from book)

/* print_it.c—This program prints a listing with line numbers! */ #include <stdlib.h> #include <stdio.h> void do_heading(char *filename); int line = 0, page = 0; int main( int argv, char *argc[] ) { char buffer[256]; FILE *fp; if( argv < 2 ) { fprintf(stderr, "\nProper Usage is: " ); fprintf(stderr, "\n\nprint_it filename.ext\n" ); return(1); } if (( fp = fopen( argc[1], "r" )) == NULL ) { fprintf( stderr, "Error opening file, %s!", argc[1]); return(1); } page = 0; line = 1; do_heading( argc[1]); while( fgets( buffer, 256, fp ) != NULL ) { if( line % 55 == 0 ) do_heading( argc[1] ); fprintf( stdprn, "%4d:\t%s", line++, buffer ); } fprintf( stdprn, "\f" ); fclose(fp); return 0; } void do_heading( char *filename ) { page++; if ( page > 1) fprintf( stdprn, "\f" ); fprintf( stdprn, "Page: %d, %s\n\n", page, filename ); } 

Trying to compile. Opened Developer Command Prompt, and typed

cl print_it.c 

Got this screen (bunch of errors and warnings)

What am I missing?

2 Answers

stdprn isn't part of standard C. stdprn is a stream DOS compilers provided. Should probably be avoided.

You could try turning off ANSI compatibility to get stdprn to work. (Reference)

you can type "stdout" instead of "stdprn"