From: Jan Kratochvil <jan.kratochvil@redhat.com>
Date: Tue, 20 Aug 2019 16:05:23 +0000 (+0000)
Subject: Regex: Add isValid() with no parameter
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=453d973267b62435a1ae1c59f0cc0ad38f441696;p=llvm

Regex: Add isValid() with no parameter

There will be some performance (only a little) improvement for LLDB's
RegularExpression::Execute.

Differential Revision: https://reviews.llvm.org/D66463


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@369396 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/Support/Regex.h b/include/llvm/Support/Regex.h
index b05349dee88..ca5e8cd79a6 100644
--- a/include/llvm/Support/Regex.h
+++ b/include/llvm/Support/Regex.h
@@ -60,6 +60,7 @@ namespace llvm {
     /// isValid - returns the error encountered during regex compilation, or
     /// matching, if any.
     bool isValid(std::string &Error) const;
+    bool isValid() const { return !error; }
 
     /// getNumMatches - In a valid regex, return the number of parenthesized
     /// matches it contains.  The number filled in by match will include this