strcat in C Post: 302672115

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Top Forums Programming strcat in C Post 302672115 by hergp on Monday 16th of July 2012 02:41:22 AM

07-16-2012

Registered User

There is also a problem with how you use strcat. This function "appends" the second argument (tab) to the first (outname) modifying outname. But since outname is a pointer to a const string, there is no room to do the concatenation. You also call strcat twice, so tab is appended twice.

This should work:

Code:

#include <stdio.h>
#include <string.h>
void main()
{
char tab[3]={"12"};
FILE *outfile;
char outname[80] = "/home/dir/";
strcat(outname,tab);
printf("%s\n",outname);
outfile = fopen(outname, "w");
 if (!outfile) {
  printf("There was a problem opening %s for writing\n", outname);
 }
 else {

 }
}

hergp

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pstopdf

pstopdf(1)						    BSD General Commands Manual 						pstopdf(1)

NAME

     pstopdf -- convert PostScript input into a PDF document.

SYNOPSIS

     pstopdf [inputfile] [-o outname] [-l] [-p] [-i]

DESCRIPTION

     pstopdf is a tool to convert PostScript input data into a PDF document. The input data may come from a file or may be read from stdin. The
     PDF document is always written to a file. The name of the output PDF file is derived from the name of the input file or may be explicitly
     named using the -o option.

     Flags:

     -o outname
	     The name of the output file to create. If an explicit file name is not supplied, the output file will be created in the current
	     directory and named foo.pdf for an input file named foo.ps

     -i      Reads from stdin rather than a named input file. If the output file is not explicitly named and the input data comes from stdin the
	     named output file will be stdin.pdf

     -l      Specifies that any messages generated during file conversion be written to a log file. For an output file named foo.pdf the generated
	     log file is foo.pdf.log rather than generated to stdout. If there are no messages, the log file is not generated.

     -p      Generates a simple progress message to stdout at the end of each page. Because conversion of complex or lengthy PostScript input can
	     take time, it is sometimes useful to see that progress is being made. Progress messages are always written to stdout even when the -l
	     (log file) option is specified.

EXAMPLES

     pstopdf inputfile.ps	   Creates a PDF file named inputfile.pdf from the PostScript data in the input file inputfile.ps

     pstopdf -i -o outputfilename  Creates a PDF file named outputfilename from the PostScript data read from stdin.

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