mirror of https://github.com/mpv-player/mpv
50 lines
869 B
C
50 lines
869 B
C
|
// File written by Michael Niedermayer and its under GPL
|
||
|
|
// simple file compare program, it finds the number of rounding errors
|
||
|
|
// and dies if there is a larger error ( ABS(a-b)>1 )
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
|
||
|
|
// FIXME no checks but its just for debuging so who cares ;)
|
||
|
|
|
||
|
|
int main(int argc, char **argv)
|
||
|
|
{
|
||
|
|
FILE *f0, *f1;
|
||
|
|
int dif=0;
|
||
|
|
|
||
|
|
if(argc!=3)
|
||
|
|
{
|
||
|
|
printf("compare <file1> <file2>\n");
|
||
|
|
exit(2);
|
||
|
|
}
|
||
|
|
|
||
|
|
f0= fopen(argv[1], "rb");
|
||
|
|
f1= fopen(argv[2], "rb");
|
||
|
|
|
||
|
|
for(;;)
|
||
|
|
{
|
||
|
|
int c0= fgetc(f0);
|
||
|
|
int c1= fgetc(f1);
|
||
|
|
int d= c0-c1;
|
||
|
|
if(c0<0 && c1<0) break;
|
||
|
|
if(c0<0 || c1<0)
|
||
|
|
{
|
||
|
|
printf("FATAL error, files have different size!\n");
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
if(d<0) d=-d; // ABS
|
||
|
|
if(d>1)
|
||
|
|
{
|
||
|
|
printf("FATAL error, too large differnce found!\n");
|
||
|
|
exit(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
if(d) dif++;
|
||
|
|
}
|
||
|
|
|
||
|
|
fclose(f0);
|
||
|
|
fclose(f1);
|
||
|
|
|
||
|
|
printf("%d (+/-1)differences found\n", dif);
|
||
|
|
exit(0);
|
||
|
|
}
|