Allow new and delete to be replaced (#44)

Author: BrennanConroy

CMakeLists.txt

@@ -22,6 +22,10 @@ if(USE_CPPRESTSDK)
   string(APPEND EXTRA_FLAGS " -DUSE_CPPRESTSDK")
 endif()
 
+if(INJECT_HEADER_AFTER_STDAFX)
+  string(APPEND EXTRA_FLAGS " -DINJECT_HEADER_AFTER_STDAFX=${INJECT_HEADER_AFTER_STDAFX}")
+endif()
+
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${EXTRA_FLAGS}")
 set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${CMAKE_LDFLAGS}")
 

README.md

@@ -23,6 +23,7 @@ Below are instructions to build on different OS's. You can also use the followin
 | -DUSE_CPPRESTSDK | Includes the CppRestSDK (default http stack) | false |
 | -DWERROR | Enables warnings as errors | true |
 | -DWALL | Enables all warnings | true |
+| -DINJECT_HEADER_AFTER_STDAFX=`<header path>` | Adds the provided header to the library compilation in stdafx.cpp, intended to allow "new" and "delete" to be replaced. | `<none>` |
 
 ### Build on Windows ###
 ```powershell

src/signalrclient/stdafx.cpp

@@ -2,4 +2,8 @@
 // The .NET Foundation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
-#include "stdafx.h"
+#include "stdafx.h"
+
+#ifdef INJECT_HEADER_AFTER_STDAFX
+#include STRINGIFY(INJECT_HEADER_AFTER_STDAFX)
+#endif

src/signalrclient/stdafx.h

@@ -4,6 +4,9 @@
 
 #pragma once
 
+#define STRINGIFY_2(s) #s
+#define STRINGIFY(s) STRINGIFY_2(s)
+
 #ifdef _WIN32 // used in the default log writer and to build the dll
 
 // prevents from defining min/max macros that conflict with std::min()/std::max() functions