diff options
| -rw-r--r-- | src/uniq.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/src/uniq.c b/src/uniq.c index 7af6072f1..b17df336d 100644 --- a/src/uniq.c +++ b/src/uniq.c @@ -34,9 +34,15 @@ #define AUTHORS "Richard Stallman and David MacKenzie" -/* Undefine, to avoid warning about redefinition on some systems. */ -#undef min -#define min(x, y) ((x) < (y) ? (x) : (y)) +#define SWAP_LINES(A, B) \ + do \ + { \ + struct linebuffer *_tmp; \ + _tmp = (A); \ + (A) = (B); \ + (B) = _tmp; \ + } \ + while (0) /* The name this program was run with. */ char *program_name; @@ -256,11 +262,8 @@ check_file (const char *infile, const char *outfile) if (!match || mode == output_all_repeated) { - struct linebuffer *tmp; writeline (prevline, ostream, match_count); - tmp = prevline; - prevline = thisline; - thisline = tmp; + SWAP_LINES (prevline, thisline); prevfield = thisfield; prevlen = thislen; if (!match) |