[cfe-commits] r38587 - in /cfe/cfe/trunk: Basic/SourceBuffer.cpp include/clang/Basic/SourceBuffer.h

[sabre at cs.uiuc.edu]

Author: sabre
Date: Wed Jul 11 11:22:58 2007
New Revision: 38587

URL: http://llvm.org/viewvc/llvm-project?rev=38587&view=rev
Log:
Add a new SourceBuffer::getNewMemBuffer method.

Modified:
    cfe/cfe/trunk/Basic/SourceBuffer.cpp
    cfe/cfe/trunk/include/clang/Basic/SourceBuffer.h

Modified: cfe/cfe/trunk/Basic/SourceBuffer.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/cfe/trunk/Basic/SourceBuffer.cpp?rev=38587&r1=38586&r2=38587&view=diff

==============================================================================
--- cfe/cfe/trunk/Basic/SourceBuffer.cpp (original)
+++ cfe/cfe/trunk/Basic/SourceBuffer.cpp Wed Jul 11 11:22:58 2007
@@ -77,6 +77,20 @@
   return new SourceBufferMem(StartPtr, EndPtr, BufferName);
 }
 
+/// getNewMemBuffer - Allocate a new SourceBuffer of the specified size that
+/// is completely initialized to zeros.  Note that the caller should
+/// initialize the memory allocated by this method.  The memory is owned by
+/// the SourceBuffer object.
+SourceBuffer *SourceBuffer::getNewMemBuffer(unsigned Size,
+                                            const char *BufferName) {
+  char *Buf = new char[Size+1];
+  memset(Buf, 0, Size+1);
+  SourceBufferMem *SB = new SourceBufferMem(Buf, Buf+Size, BufferName);
+  // The memory for this buffer is owned by the SourceBuffer.
+  SB->MustDeleteBuffer = true;
+  return SB;
+}
+
 
 //===----------------------------------------------------------------------===//
 // SourceBufferFile implementation.

Modified: cfe/cfe/trunk/include/clang/Basic/SourceBuffer.h
URL: http://llvm.org/viewvc/llvm-project/cfe/cfe/trunk/include/clang/Basic/SourceBuffer.h?rev=38587&r1=38586&r2=38587&view=diff

==============================================================================
--- cfe/cfe/trunk/include/clang/Basic/SourceBuffer.h (original)
+++ cfe/cfe/trunk/include/clang/Basic/SourceBuffer.h Wed Jul 11 11:22:58 2007
@@ -57,6 +57,13 @@
   static SourceBuffer *getMemBuffer(const char *StartPtr, const char *EndPtr,
                                     const char *BufferName = "");
   
+  /// getNewMemBuffer - Allocate a new SourceBuffer of the specified size that
+  /// is completely initialized to zeros.  Note that the caller should
+  /// initialize the memory allocated by this method.  The memory is owned by
+  /// the SourceBuffer object.
+  static SourceBuffer *getNewMemBuffer(unsigned Size,
+                                       const char *BufferName = "");
+  
   /// getSTDIN - Read all of stdin into a file buffer, and return it.  This
   /// fails if stdin is empty.
   static SourceBuffer *getSTDIN();