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/Frontend/CacheTokens.cpp b/clang/lib/Frontend/CacheTokens.cpp
index 72e8f68..851ea25 100644
--- a/clang/lib/Frontend/CacheTokens.cpp
+++ b/clang/lib/Frontend/CacheTokens.cpp
@@ -662,7 +662,8 @@
// (2) a map from (IdentifierInfo*, Offset)* -> persistent IDs
// Note that we use 'calloc', so all the bytes are 0.
- PTHIdKey *IIDMap = (PTHIdKey*)calloc(idcount, sizeof(PTHIdKey));
+ PTHIdKey *IIDMap = static_cast<PTHIdKey*>(
+ llvm::safe_calloc(idcount, sizeof(PTHIdKey)));
// Create the hashtable.
llvm::OnDiskChainedHashTableGenerator<PTHIdentifierTableTrait> IIOffMap;