Clean up use of C allocation functions
If the value returned by `malloc`, `calloc` or `realloc` is not checked
for null pointer, this change replaces them for `safe_malloc`,
`safe_calloc` or `safe_realloc`, which are defined in the namespace `llvm`.
These function report fatal error on out of memory.
In the plain C files, assertion statements are added to ensure that memory
is successfully allocated.
The aim of this change is to get better diagnostics of OOM on Windows.
Differential Revision: https://reviews.llvm.org/D43017
llvm-svn: 325661
diff --git a/clang/lib/AST/NestedNameSpecifier.cpp b/clang/lib/AST/NestedNameSpecifier.cpp
index 889f830..f46552e 100644
--- a/clang/lib/AST/NestedNameSpecifier.cpp
+++ b/clang/lib/AST/NestedNameSpecifier.cpp
@@ -466,7 +466,7 @@
unsigned NewCapacity = std::max(
(unsigned)(BufferCapacity ? BufferCapacity * 2 : sizeof(void *) * 2),
(unsigned)(BufferSize + (End - Start)));
- char *NewBuffer = static_cast<char *>(malloc(NewCapacity));
+ char *NewBuffer = static_cast<char *>(llvm::safe_malloc(NewCapacity));
if (BufferCapacity) {
memcpy(NewBuffer, Buffer, BufferSize);
free(Buffer);