[llvm-commits] CVS: llvm/utils/fpcmp/fpcmp.cpp

[Chris Lattner]

Changes in directory llvm/utils/fpcmp:

fpcmp.cpp updated: 1.4 -> 1.5

---
Log message:

Use fileutilities instead of mmap directly


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Diffs of the changes:  (+2 -16)

Index: llvm/utils/fpcmp/fpcmp.cpp
diff -u llvm/utils/fpcmp/fpcmp.cpp:1.4 llvm/utils/fpcmp/fpcmp.cpp:1.5
--- llvm/utils/fpcmp/fpcmp.cpp:1.4	Fri Apr 23 12:38:17 2004
+++ llvm/utils/fpcmp/fpcmp.cpp	Thu May 27 19:31:36 2004
@@ -37,25 +37,11 @@
 /// OpenFile - mmap the specified file into the address space for reading, and
 /// return the length and address of the buffer.
 static void OpenFile(const std::string &Filename, unsigned &Len, char* &BufPtr){
-  int FD = open(Filename.c_str(), O_RDONLY);
-  if (FD == -1 || (Len = getFileSize(Filename)) == ~0U) {
+  BufPtr = (char*)ReadFileIntoAddressSpace(Filename, Len);
+  if (BufPtr == 0) {
     std::cerr << "Error: cannot open file '" << Filename << "'\n";
     exit(2);
   }
-
-  // mmap in the file all at once...
-  BufPtr = (char*)mmap(0, Len, PROT_READ, MAP_PRIVATE, FD, 0);
-  
-  if (BufPtr == (char*)MAP_FAILED) {
-    std::cerr << "Error: cannot open file '" << Filename << "'\n";
-    exit(2);
-  }
-
-  // If mmap decided that the files were empty, it might have returned a
-  // null pointer. If so, make a new, fake pointer -- it shouldn't matter
-  // what it contains, because Len is 0, and it should never be read.
-  if (BufPtr == 0 && Len == 0)
-    BufPtr = new char[1];
 }
 
 static bool isNumberChar(char C) {