update comment.

llvm-svn: 64939
This commit is contained in:
Chris Lattner 2009-02-18 18:56:29 +00:00
parent f68490a3f7
commit 57a09cfcbc
1 changed files with 1 additions and 5 deletions

View File

@ -291,11 +291,7 @@ void Preprocessor::CreateString(const char *Buf, unsigned Len, Token &Tok,
/// token, return a new location that specifies a character within the token.
SourceLocation Preprocessor::AdvanceToTokenCharacter(SourceLocation TokStart,
unsigned CharNo) {
// If they request the first char of the token, we're trivially done. If this
// is a macro expansion, it doesn't make sense to point to a character within
// the instantiation point (the name). We could point to the source
// character, but without also pointing to instantiation info, this is
// confusing.
// If they request the first char of the token, we're trivially done.
if (CharNo == 0) return TokStart;
// Figure out how many physical characters away the specified instantiation