04/02/09 01:49
>>13をC言語で適当に書いたコード
おまいらこれをCleanに変換してくれよ
#include <stdio.h>
#define deref(x,i) *(int *)((x) + ((i)*4))
cvsref_fp(no, in, out) {
int c, column = 1;
while ((c = fgetc(in)) != EOF)
if (c == ',') ++column;
else if (c == '\n') fputc(c, out), column = 1;
else if (column == no) fputc(c, out);
}
cvsref(no, filename) {
int fp = fopen(filename, "r");
!fp ? printf("Error: File not found.\n"),exit(1) :
cvsref_fp(no, fp, stdout);
fclose(fp);
}
main(c,v) {
c != 3 ? printf("Usage: csvref <no> <filename>\n"),exit(1) :
cvsref(atoi(deref(v, 1)), deref(v, 2));
}