[llvm] r369396 - Regex: Add isValid() with no parameter

[Jan Kratochvil via llvm-commits]

Author: jankratochvil
Date: Tue Aug 20 09:05:23 2019
New Revision: 369396

URL: http://llvm.org/viewvc/llvm-project?rev=369396&view=rev
Log:
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

Modified:
    llvm/trunk/include/llvm/Support/Regex.h

Modified: llvm/trunk/include/llvm/Support/Regex.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Support/Regex.h?rev=369396&r1=369395&r2=369396&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Support/Regex.h (original)
+++ llvm/trunk/include/llvm/Support/Regex.h Tue Aug 20 09:05:23 2019
@@ -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