Article View: comp.os.os2.programmer
Article #1380gcc/emx library
From: Bill Pearson
Date: Thu, 03 Sep 1992 18:42
Date: Thu, 03 Sep 1992 18:42
42 lines
1186 bytes
1186 bytes
The ftell()/fseek() functions in the emx library seem to be
broken. The following program and dataset demonstrate this:
gcc -o ftest.exe ftest.c
ftest test.dat
================ ftest.c ================
#include <stdio.h>
main(argc,argv)
int argc; char **argv;
{
FILE *fin;
long pos[10], ftell();
int i,n;
char line[512];
i=n=0;
fin=fopen(argv[1],"r");
pos[i++]=ftell(fin);
while (fgets(line,sizeof(line),fin)) {
printf("%d %d %s\n",i-1,pos[i-1],line);
pos[i++]=ftell(fin);
}
n=i-1;
for (i=n-1; i>=0; i--) {
fseek(fin,pos[i],0);
fgets(line,sizeof(line),fin);
printf("%d: %s\n",i,line);
}
}
================ test.dat ================
line 1
line 2
line 3
line 4
line 5
line 6
Technical Details
Message-ID:
<1992Sep3.184233.13637@murdoch.acc.Virginia.EDU>Path:
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Complete Article Headers
Newsgroups: comp.os.os2.programmer Path: arc1-ca.pugleaf.net!sparky!uunet!gatech!darwin.sura.net!uvaarpa!murdoch!cyclops.micr.Virginia.EDU!wrp From: wrp@cyclops.micr.Virginia.EDU (Bill Pearson) Subject: gcc/emx library Message-ID: <1992Sep3.184233.13637@murdoch.acc.Virginia.EDU> Originator: wrp@cyclops.micr.Virginia.EDU Sender: usenet@murdoch.acc.Virginia.EDU Organization: University of Virginia Date: Thu, 3 Sep 1992 18:42:33 GMT Lines: 42