From d34142ebf7bb4b9ced2ad950662d5b90678f1d0d Mon Sep 17 00:00:00 2001
From: Peter Zotov <whitequark@whitequark.org>
Date: Thu, 4 Jun 2015 09:09:53 +0000
Subject: [PATCH] [C API] Add LLVMStructGetTypeAtIndex.

Patch by deadalnix (Amaury SECHET).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239029 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm-c/Core.h | 7 +++++++
 lib/IR/Core.cpp       | 5 +++++
 2 files changed, 12 insertions(+)

diff --git a/include/llvm-c/Core.h b/include/llvm-c/Core.h
index effbd15c10d..73bff0b7ec4 100644
--- a/include/llvm-c/Core.h
+++ b/include/llvm-c/Core.h
@@ -997,6 +997,13 @@ unsigned LLVMCountStructElementTypes(LLVMTypeRef StructTy);
  */
 void LLVMGetStructElementTypes(LLVMTypeRef StructTy, LLVMTypeRef *Dest);
 
+/**
+ * Get the type of the element at a given index in the structure.
+ *
+ * @see llvm::StructType::getTypeAtIndex()
+ */
+LLVMTypeRef LLVMStructGetTypeAtIndex(LLVMTypeRef StructTy, unsigned i);
+
 /**
  * Determine whether a structure is packed.
  *
diff --git a/lib/IR/Core.cpp b/lib/IR/Core.cpp
index 9557cda5a9c..d476434542e 100644
--- a/lib/IR/Core.cpp
+++ b/lib/IR/Core.cpp
@@ -461,6 +461,11 @@ void LLVMGetStructElementTypes(LLVMTypeRef StructTy, LLVMTypeRef *Dest) {
     *Dest++ = wrap(*I);
 }
 
+LLVMTypeRef LLVMStructGetTypeAtIndex(LLVMTypeRef StructTy, unsigned i) {
+  StructType *Ty = unwrap<StructType>(StructTy);
+  return wrap(Ty->getTypeAtIndex(i));
+}
+
 LLVMBool LLVMIsPackedStruct(LLVMTypeRef StructTy) {
   return unwrap<StructType>(StructTy)->isPacked();
 }