https://bugs.llvm.org/show_bug.cgi?id=35319
Bug ID: 35319
Summary: Warn on semicolons immediately following "else"
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: C++
Assignee: unassignedclangb...@nondot.org
Reporter: bre...@gmail.com
CC: dgre...@apple.com, llvm-bugs@lists.llvm.org
clang version 6.0.0 (trunk 317263)
This code:
int main(int argc, char** argv) {
if (argc > 4); // <-- Note semicolon!
return 0;
}
Gives:
eraseme.cc:2:16: warning: if statement has empty body [-Wempty-body]
if (argc > 4);
^
eraseme.cc:2:16: note: put the semicolon on a separate line to silence this
warning
1 warning generated.
This is good! And it also works for "else if" cases. But I just did the same
bug and put a semicolon after a bare else:
int main(int argc, char** argv) {
if (argc > 4)
return 1;
else; // <- Semicolon
return 2;
return 0;
}
And there is no warning. This was pretty tricky to find and it seems like the
same rule for "if" semicolons should just also be applied to "else".
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