[lld] r230770 - PECOFF: Use StringRef::find_first_of instead of a hand-written loop.

[Rui Ueyama]

Author: ruiu
Date: Fri Feb 27 12:06:41 2015
New Revision: 230770

URL: http://llvm.org/viewvc/llvm-project?rev=230770&view=rev
Log:
PECOFF: Use StringRef::find_first_of instead of a hand-written loop.

Modified:
    lld/trunk/lib/ReaderWriter/PECOFF/ReaderCOFF.cpp

Modified: lld/trunk/lib/ReaderWriter/PECOFF/ReaderCOFF.cpp
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/lib/ReaderWriter/PECOFF/ReaderCOFF.cpp?rev=230770&r1=230769&r2=230770&view=diff
==============================================================================
--- lld/trunk/lib/ReaderWriter/PECOFF/ReaderCOFF.cpp (original)
+++ lld/trunk/lib/ReaderWriter/PECOFF/ReaderCOFF.cpp Fri Feb 27 12:06:41 2015
@@ -1052,19 +1052,11 @@ StringRef FileCOFF::ArrayRefToString(Arr
       array[2] == 0xBF) {
     array = array.slice(3);
   }
-
   if (array.empty())
     return "";
-
-  // This is equivalent to strnlen, but we don't use the function because
-  // it only exists in recent POSIX standards.
-  size_t len = 0;
-  size_t e = array.size();
-  while (len < e && array[len] != '\0')
-    ++len;
-
-  std::string *contents =
-      new (_alloc) std::string(reinterpret_cast<const char *>(&array[0]), len);
+  StringRef s((char *)array.data(), array.size());
+  s = s.substr(0, s.find_first_of('\0'));
+  std::string *contents = new (_alloc) std::string(s.data(), s.size());
   return StringRef(*contents).trim();
 }