Add a function to MD5 a file's contents.
In doing so, clean up the MD5 interface a little. Most
existing users only care about the lower 8 bytes of an MD5,
but for some users that care about the upper and lower,
there wasn't a good interface. Furthermore, consumers
of the MD5 checksum were required to handle endianness
details on their own, so it seems reasonable to abstract
this into a nicer interface that just gives you the right
value.
Differential Revision: https://reviews.llvm.org/D31105
llvm-svn: 298322
diff --git a/clang/lib/Frontend/ASTUnit.cpp b/clang/lib/Frontend/ASTUnit.cpp
index 952992a..2acdc64 100644
--- a/clang/lib/Frontend/ASTUnit.cpp
+++ b/clang/lib/Frontend/ASTUnit.cpp
@@ -1252,7 +1252,7 @@
PreambleFileHash Result;
Result.Size = Size;
Result.ModTime = ModTime;
- memset(Result.MD5, 0, sizeof(Result.MD5));
+ Result.MD5 = {};
return Result;
}
@@ -1273,7 +1273,7 @@
bool operator==(const ASTUnit::PreambleFileHash &LHS,
const ASTUnit::PreambleFileHash &RHS) {
return LHS.Size == RHS.Size && LHS.ModTime == RHS.ModTime &&
- memcmp(LHS.MD5, RHS.MD5, sizeof(LHS.MD5)) == 0;
+ LHS.MD5 == RHS.MD5;
}
} // namespace clang