#include <stdio.h>
#include <stdlib.h>
#include <assert.h>

/*
  gcc -o bin2mat -Wall -O3 bin2mat.c
*/

int main(int argc, char* argv[])
{
  char *fin,  *fout;
  FILE *fpin, *fpout;
  int   nrow, ncol, chk, c, r;
  int  *x;
  
  if (argc == 1) {
    fprintf(stderr, "usage: %s foo.bin foo.txt\n", argv[0]);
    exit(-1);
  }
  fin  = argv[1];
  fout = argv[2];
  
  fpin = fopen(fin,"r");                     assert(fpin);
  assert(fread(&nrow, sizeof(int),1,fpin));  assert(nrow>0);
  assert(fread(&ncol, sizeof(int),1,fpin));  assert(ncol>0);
  x = (int*)calloc(ncol,sizeof(int));        assert(x);
  fpout = fopen(fout,"w");                   assert(fpout);
  fprintf(fpout,"%d\n",nrow);
  fprintf(fpout,"%d\n",ncol);
  
  for (r = 0; r < nrow; r++) {
    chk = fread(x,sizeof(int),ncol,fpin);    assert(chk==ncol);
    for (c = 0; c < ncol; c++) fprintf(fpout,"%d\n", x[c]);
  }
  
  fclose(fpin);
  fclose(fpout);
  
  return 0;
}