Code review changes: Renamed function and added some documentation about what the function does and why

1 files changed, 16 insertions, 3 deletions

diff --git a/lllc/main.cpp b/lllc/main.cpp
index ed91c0a2..ecd0de99 100644
--- a/lllc/main.cpp
+++ b/lllc/main.cpp
@@ -53,9 +53,22 @@ void version()
 	exit(0);
 }
 
-void setEnv()
+/*
+The equivalent of setlocale(LC_ALL, “C”) is called before any user code is run.
+If the user has an invalid environment setting then it is possible for the call
+to set locale to fail, so there are only two possible actions, the first is to
+throw a runtime exception and cause the program to quit (default behaviour),
+or the second is to modify the environment to something sensible (least
+surprising behaviour).
+
+The follow code produces the least surprising behaviour. It will use the user
+specified default locale if it is valid, and if not then it will modify the
+environment the process is running in to use a sensible default. This also means
+that users do not need to install language packs for their OS.
+*/
+void setDefaultOrCLocale()
 {
-#if !defined(WIN32) && !defined(MAC_OSX) && !defined(__FreeBSD__) && !defined(__OpenBSD__)
+#if __unix__
 	if (!std::setlocale(LC_ALL, ""))
 	{
 		setenv("LC_ALL", "C", 1);
@@ -67,7 +80,7 @@ enum Mode { Binary, Hex, Assembly, ParseTree, Disassemble };
 
 int main(int argc, char** argv)
 {
-	setEnv();
+	setDefaultOrCLocale();
 	unsigned optimise = 1;
 	string infile;
 	Mode mode = Hex;