1 /*===- count.c - The 'count' testing tool ---------------------------------===*\
3 * The LLVM Compiler Infrastructure
5 * This file is distributed under the University of Illinois Open Source
6 * License. See LICENSE.TXT for details.
8 \*===----------------------------------------------------------------------===*/
13 int main(int argc, char **argv) {
14 unsigned Count, NumLines, NumRead;
15 char Buffer[4096], *End;
18 fprintf(stderr, "usage: %s <expected line count>\n", argv[0]);
22 Count = strtol(argv[1], &End, 10);
23 if (*End != '\0' && End != argv[1]) {
24 fprintf(stderr, "%s: invalid count argument '%s'\n", argv[0], argv[1]);
32 NumRead = fread(Buffer, 1, sizeof(Buffer), stdin);
34 for (i = 0; i != NumRead; ++i)
35 if (Buffer[i] == '\n')
37 } while (NumRead == sizeof(Buffer));
40 fprintf(stderr, "%s: error reading stdin\n", argv[0]);
44 if (Count != NumLines) {
45 fprintf(stderr, "Expected %d lines, got %d.\n", Count, NumLines);