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#include<stdio.h>
#include<assert.h>
int main(int argc, char **argv) {
const int ARRSIZE = 80;
char arr[ARRSIZE];
if(argc != 3) {
fprintf(stderr, "%s <input file> <output file>\n", argv[0]);
return 1;
}
char *ifilename = argv[1];
char *ofilename = argv[2];
printf("%s\n", ifilename);
FILE *ifile = fopen(ifilename, "r");
if(!ifile) {
fprintf(stderr, "Could not open source file %s.\n", ifilename);
return 1;
}
FILE *ofile = fopen(ofilename, "w");
if(!ofile) {
fprintf(stderr, "Could not open target file %s\n", ofilename);
return 1;
}
size_t bytes;
bytes = fread(arr, 1, ARRSIZE, ifile);
assert(bytes < 80);
assert(bytes > 0);
fwrite(arr, 1, bytes, ofile);
fclose(ifile);
fclose(ofile);
return 0;
}
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