catch_debugger.h - implement break into debugger assembler instructions for iOS

Fixes #1820

include/internal/benchmark/catch_constructor.hpp

@@ -55,11 +55,15 @@ namespace Catch {
                 template <typename U>
                 void destruct_on_exit(typename std::enable_if<!Destruct, U>::type* = 0) { }
 
-                T& stored_object()
-                {
+                T& stored_object() {
                     return *static_cast<T*>(static_cast<void*>(&data));
                 }
 
+                T const& stored_object() const {
+                    return *static_cast<T*>(static_cast<void*>(&data));
+                }
+
+
                 TStorage data;
             };
         }

include/internal/catch_console_colour.cpp

@@ -167,7 +167,7 @@ namespace {
 
     bool useColourOnPlatform() {
         return
-#ifdef CATCH_PLATFORM_MAC
+#if defined(CATCH_PLATFORM_MAC) || defined(CATCH_PLATFORM_IPHONE)
             !isDebuggerActive() &&
 #endif
 #if !(defined(__DJGPP__) && defined(__STRICT_ANSI__))

include/internal/catch_debugger.cpp

@@ -12,7 +12,7 @@
 #include "catch_stream.h"
 #include "catch_platform.h"
 
-#ifdef CATCH_PLATFORM_MAC
+#if defined(CATCH_PLATFORM_MAC) || defined(CATCH_PLATFORM_IPHONE)
 
 #  include <assert.h>
 #  include <stdbool.h>

include/internal/catch_debugger.h

@@ -19,6 +19,17 @@ namespace Catch {
 
     #define CATCH_TRAP() __asm__("int $3\n" : : ) /* NOLINT */
 
+#elif defined(CATCH_PLATFORM_IPHONE)
+
+    // use inline assembler
+    #if defined(__i386__) || defined(__x86_64__)
+        #define CATCH_TRAP()  __asm__("int $3")
+    #elif defined(__aarch64__)
+        #define CATCH_TRAP()  __asm__(".inst 0xd4200000")
+    #elif defined(__arm__)
+        #define CATCH_TRAP()  __asm__(".inst 0xe7f001f0")
+    #endif
+
 #elif defined(CATCH_PLATFORM_LINUX)
     // If we can use inline assembler, do it because this allows us to break
     // directly at the location of the failing check instead of breaking inside