Re: [PATCH] Fix Solaris compiler warnings

[Alex Riesen <raa.lkml@gmail.com>]

Junio C Hamano, Fri, Nov 16, 2007 00:16:25 +0100:
> Alex Riesen <raa.lkml@gmail.com> writes:
> 
> > Guido Ostkamp, Thu, Nov 15, 2007 23:19:11 +0100:
> >> Hello,
> >>
> >> the below patch fixes some compiler warnings returned by Solaris Workshop 
> >> Compilers.
> >>
> >>     CC builtin-apply.o
> >> "builtin-apply.c", line 686: warning: statement not reached
> >>     CC utf8.o
> >> "utf8.c", line 287: warning: statement not reached
> >>     CC xdiff/xdiffi.o
> >> "xdiff/xdiffi.c", line 261: warning: statement not reached
> >
> > All these are wrong. That's a fantastically broken piece of compiler
> 
> Eh?
> 
> I've looked at builtin-apply and utf8 cases but these returns
> are after an endless loop whose exit paths always return
> directly, so these return statements are in fact never reached.
> 
> Dumber compilers may not notice and if you remove these returns
> they may start complaining, though. 

Hmm... Guido, I owe you an appology. Still, consider this patch
instead (it does not fix the return in xdiff/xdiffi.c though):


diff --git a/builtin-apply.c b/builtin-apply.c
index 8edcc08..6267396 100644
--- a/builtin-apply.c
+++ b/builtin-apply.c
@@ -668,13 +668,13 @@ static char *git_header_name(char *line, int llen)
 		default:
 			continue;
 		case '\n':
-			return NULL;
+			goto eol;
 		case '\t': case ' ':
 			second = name+len;
 			for (;;) {
 				char c = *second++;
 				if (c == '\n')
-					return NULL;
+					goto eol;
 				if (c == '/')
 					break;
 			}
@@ -683,6 +683,7 @@ static char *git_header_name(char *line, int llen)
 			}
 		}
 	}
+eol:
 	return NULL;
 }
 
diff --git a/utf8.c b/utf8.c
index 8095a71..50c46af 100644
--- a/utf8.c
+++ b/utf8.c
@@ -262,7 +262,7 @@ int print_wrapped_text(const char *text, int indent, int indent2, int width)
 					print_spaces(indent);
 				fwrite(start, text - start, 1, stdout);
 				if (!c)
-					return w;
+					break;
 				else if (c == '\t')
 					w |= 0x07;
 				space = text;
diff --git a/xdiff/xutils.c b/xdiff/xutils.c
index 2ade97b..533ff76 100644
--- a/xdiff/xutils.c
+++ b/xdiff/xutils.c
@@ -230,10 +230,9 @@ int xdl_recmatch(const char *l1, long s1, const char *l2, long s2, long flags)
 			i2++;
 		}
 		return i1 >= s1 && i2 >= s2;
-	} else
-		return s1 == s2 && !memcmp(l1, l2, s1);
+	}
 
-	return 0;
+	return s1 == s2 && !memcmp(l1, l2, s1);
 }
 
 static unsigned long xdl_hash_record_with_whitespace(char const **data,