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[PATCH 4/4] transport: drop "int cmp = cmp" hack

From
Jeff King <peff@peff.net>
Date
Mar 21, 2013, 11:13 UTC
Message-ID
<20130321111333.GD18819@sigill.intra.peff.net>
In-Reply-To
<20130321110338.GA18552@sigill.intra.peff.net>

According to 47ec794, this initialization is meant to squelch an erroneous uninitialized variable warning from gcc 4.0.1. That version is quite old at this point, and gcc 4.1 and up handle it fine, with one exception. There seems to be a regression in gcc 4.6.3, which produces the warning; however, gcc versions 4.4.7 and 4.7.2 do not.

Signed-off-by: Jeff King <peff@peff.net>
---
We probably _don't_ want to apply this one right now. The regression in
4.6 means some people on reasonably modern systems probably would still
see the warning. Debian stable ships with 4.4, and testing/unstable
defaults to 4.7 (though you can install a gcc-4.6 compatibility
package). But I have no clue if other distros made releases with 4.6.
 transport.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/transport.c b/transport.c
index 886ffd8..87b8f14 100644
--- a/transport.c
+++ b/transport.c
@@ -106,7 +106,7 @@ static void insert_packed_refs(const char *packed_refs, struct ref **list)
 		return;
 
 	for (;;) {
-		int cmp = cmp, len;
+		int cmp, len;
 
 		if (!fgets(buffer, sizeof(buffer), f)) {
 			fclose(f);
-- 
1.8.2.rc2.8.g2161951
Previous: Torsten BögershausenNext: Jonathan Nieder
Message 13 of 42 in “drop some "int x = x" hacks to silence gcc warnings”
  1. 0/4 drop some "int x = x" hacks to silence gcc warningsJeff King, Mar 21, 2013
  2. 1/4 wt-status: fix possible use of uninitialized variableJeff King, Mar 21, 2013
  3. Jonathan NiederMar 21, 2013
  4. Junio C HamanoMar 21, 2013
  5. Jonathan NiederMar 21, 2013
  6. Jeff KingMar 22, 2013
  7. 2/4 fast-import: use pointer-to-pointer to keep list tailJeff King, Mar 21, 2013
  8. Jonathan NiederMar 21, 2013
  9. 3/4 drop some obsolete "x = x" compiler warning hacksJeff King, Mar 21, 2013
  10. Erik Faye-LundMar 21, 2013
  11. Jonathan NiederMar 21, 2013
  12. Torsten BögershausenMar 24, 2013
  13. 4/4 transport: drop "int cmp = cmp" hackJeff King, Mar 21, 2013
  14. Jonathan NiederMar 21, 2013
  15. Junio C HamanoMar 24, 2013
  16. Jeff KingMar 24, 2013
  17. Torsten BögershausenMar 24, 2013
  18. Junio C HamanoMar 25, 2013
  19. Jeff KingMar 25, 2013
  20. Junio C HamanoMar 25, 2013
  21. Johannes SixtMar 21, 2013
  22. Jeff KingMar 21, 2013
  23. Junio C HamanoMar 21, 2013
  24. Junio C HamanoMar 21, 2013
  25. Jeff KingMar 21, 2013
  26. 5/4 fast-import: clarify "inline" logic in file_change_mJeff King, Mar 21, 2013
  27. 6/4 run-command: always set failed_errno in start_commandJeff King, Mar 21, 2013
  28. Jonathan NiederMar 21, 2013
  29. Jeff KingMar 22, 2013
  30. 7/4 submodule: clarify logic in show_submodule_summaryJeff King, Mar 22, 2013
  31. Junio C HamanoMar 22, 2013
  32. 8/4 match-trees: drop "x = x" initializationsJeff King, Mar 22, 2013
  33. Junio C HamanoMar 22, 2013
  34. Junio C HamanoMar 22, 2013
  35. Jeff KingMar 22, 2013
  36. René ScharfeMar 23, 2013
  37. Junio C HamanoMar 24, 2013
  38. Jeff KingMar 24, 2013
  39. René ScharfeMar 24, 2013
  40. Junio C HamanoMar 25, 2013
  41. Joachim SchmitzMar 21, 2013
  42. Joachim SchmitzMar 21, 2013

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