Fix PR 23525 - Separate header mass propagation in irregular loops.

[oota-llvm.git] / include / llvm / Support / Regex.h

diff --git a/include/llvm/Support/Regex.h b/include/llvm/Support/Regex.h
index 21677dcfa16c29b39586bd141c5ab27596574ea9..31b35ed0cad61f86712bb30b1f0a60559d6c7ea6 100644 (file)
--- a/include/llvm/Support/Regex.h
+++ b/include/llvm/Support/Regex.h
@@ -45,6 +45,17 @@ namespace llvm {
 
     /// Compiles the given regular expression \p Regex.
     Regex(StringRef Regex, unsigned Flags = NoFlags);
+    Regex(const Regex &) = delete;
+    Regex &operator=(Regex regex) {
+      std::swap(preg, regex.preg);
+      std::swap(error, regex.error);
+      return *this;
+    }
+    Regex(Regex &&regex) {
+      preg = regex.preg;
+      error = regex.error;
+      regex.preg = nullptr;
+    }
     ~Regex();
 
     /// isValid - returns the error encountered during regex compilation, or
@@ -63,7 +74,7 @@ namespace llvm {
     /// the first group is always the entire pattern.
     ///
     /// This returns true on a successful match.
-    bool match(StringRef String, SmallVectorImpl<StringRef> *Matches = 0);
+    bool match(StringRef String, SmallVectorImpl<StringRef> *Matches = nullptr);
 
     /// sub - Return the result of replacing the first match of the regex in
     /// \p String with the \p Repl string. Backreferences like "\0" in the
@@ -75,7 +86,8 @@ namespace llvm {
     /// \param Error If non-null, any errors in the substitution (invalid
     /// backreferences, trailing backslashes) will be recorded as a non-empty
     /// string.
-    std::string sub(StringRef Repl, StringRef String, std::string *Error = 0);
+    std::string sub(StringRef Repl, StringRef String,
+                    std::string *Error = nullptr);
 
     /// \brief If this function returns true, ^Str$ is an extended regular
     /// expression that matches Str and only Str.