I have this program that compiles and runs in microsoft C++ but when I try to compile with GNU either no output is produced or the output file is put somewhere and I don't know where it is! I am using the gcc command to compile. Should that put the output file in the same directory as my .c file? Or is my problem of a different nature?
First off, thank you very much for the help!
There is an fprintf in the .c file. So it should be printing to that file right? Also, if I open the a.out file there's a bunch of unreadable stuff in the file.
Code:#include <stdio.h> #define max 5000 int main (void) { char data [max]; int j = 0, i=0; FILE* input; FILE* output; input = fopen ("input_40x10x300_nohead.cor", "r"); //open the input file output = fopen ("input_new_40x10x300.cor", "w"); for(j=1; j<max && fscanf(input, "%c", &data[j]) != EOF; j++) { if (data[j] == ' ') { i++; } if(i < 4 || i >= 7) { fputc (data[j], output); } if (data[j] == '\n') { j=0; i=0; } } fclose (input); fclose(output); return 0; }
Also, previously this:
was in the place of:Code:fprintf (output, "%c", data[j]);
but that did not work either.Code:fputc (data[j], output);
I added the code above. I am not familiar with perror but I assume that if that condition was true it would have reported that error during compiling. The program compiled fine and when I added fprintf (output, "Outside") and another one that should print "inside" in the loop just to see if I could write to the file at all. This did not print to the file either. This leads me to believe I have some error in opening the file or in my syntax in writing to the file. Thanks again for the help, it is very appreciated.
The code again, for reference:
*edit: code was only half there.Code:#include <stdio.h> #define max 5000 int main (void) { char data [max]; int j = 0, i=0; FILE* input; FILE* output; input = fopen ("input_40x10x300_nohead.cor", "r"); //open the input file output = fopen ("input_new_40x10x300.cor", "w"); if ( input == NULL ) { perror( "Can't open input file" ); exit( 1 ); } fprintf (output, "outside"); for(j=1; j<max && fscanf(input, "%c", &data[j]) != EOF; j++) { if (data[j] == ' ') { i++; } if(i < 4 || i >= 7) { fprintf (output, "%c", data[j]); fprintf (output, "inside"); } if (data[j] == '\n') { j=0; i=0; } } fclose (input); fclose(output); return 0;
Last edited by PunkyBunny300; 04-07-2003 at 11:52 PM.
