Allow to construct CMIUtilString using std::string directly + cleanup CMIUtilString (MI)

Summary:
Allow to construct CMIUtilString using std::string directly + cleanup CMIUtilString (MI)

This patch cleans up lldb-mi code, and serves to simplify
the following case:
```
  std::string strGoodbye = "!Hello";
  CMIUtilString strHello(strGoodbye.substr(1).c_str());
```

With CMIUtilString(std::string) we can omit .c_str():
```
  std::string strGoodbye = "!Hello";
  CMIUtilString strHello(strGoodbye.substr(1));
```

Also, it removes 2 ctors because they aren't needed:
# CMIUtilString::CMIUtilString(const char *const *vpData)
# CMIUtilString::CMIUtilString(const char *vpData, size_t nLen)
and cleans up CMIUtilString::operator=(const std::string &vrRhs).

Reviewers: brucem, abidh

Subscribers: lldb-commits, brucem, abidh

Differential Revision: http://reviews.llvm.org/D13158

llvm-svn: 248566

1 files changed, 2 insertions, 2 deletions

diff --git a/lldb/tools/lldb-mi/MICmdArgValThreadGrp.cpp b/lldb/tools/lldb-mi/MICmdArgValThreadGrp.cpp
index 6b79fc84ee9..43e9c724dca 100644
--- a/lldb/tools/lldb-mi/MICmdArgValThreadGrp.cpp
+++ b/lldb/tools/lldb-mi/MICmdArgValThreadGrp.cpp
@@ -121,7 +121,7 @@ CMICmdArgValThreadGrp::IsArgThreadGrp(const CMIUtilString &vrTxt) const
     if (nPos != 0)
         return false;
 
-    const CMIUtilString strNum = vrTxt.substr(1).c_str();
+    const CMIUtilString strNum = vrTxt.substr(1);
     if (!strNum.IsNumber())
         return false;
 
@@ -139,7 +139,7 @@ CMICmdArgValThreadGrp::IsArgThreadGrp(const CMIUtilString &vrTxt) const
 bool
 CMICmdArgValThreadGrp::ExtractNumber(const CMIUtilString &vrTxt)
 {
-    const CMIUtilString strNum = vrTxt.substr(1).c_str();
+    const CMIUtilString strNum = vrTxt.substr(1);
     MIint64 nNumber = 0;
     bool bOk = strNum.ExtractNumber(nNumber);
     if (bOk)