From 5cc498f116cd76235c9c0a2ded46bc29f8fb35e0 Mon Sep 17 00:00:00 2001 From: Reid Spencer Date: Tue, 16 Nov 2004 06:50:36 +0000 Subject: [PATCH] Add a comment to some code that at first glance just doesn't look right. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17886 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Support/CommandLine.cpp | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/lib/Support/CommandLine.cpp b/lib/Support/CommandLine.cpp index 15fd19591a0..df321653e6d 100644 --- a/lib/Support/CommandLine.cpp +++ b/lib/Support/CommandLine.cpp @@ -972,5 +972,11 @@ VersOp("version", cl::desc("display the version"), // Utility function for printing the help message. void cl::PrintHelpMessage() { + // This looks weird, but it actually prints the help message. The + // NormalPrinter variable is a HelpPrinter and the help gets printed when + // its operator= is invoked. That's because the "normal" usages of the + // help printer is to be assigned true/false depending on whether the + // --help option was given or not. Since we're circumventing that we have + // to make it look like --help was given, so we assign true. NormalPrinter = true; }