Started writing the macOS control errors file. We have a meson problem now... it's not respecting cpp_std for Objective-C++.

test/controls_darwin_errors.mm

@@ -0,0 +1,17 @@
+// 16 june 2019
+#import "test_darwin.h"
+
+const struct checkErrorCase controlOSVtableCases[] = {
+	{
+		"uiRegisterControlType() with OS vtable with wrong size",
+		[](void) {
+			uiControlOSVtable vtable;
+	
+			memset(&vtable, 0, sizeof (uiControlOSVtable));
+			vtable.Size = 1;
+			uiRegisterControlType("name", testVtable(), &vtable, 0);
+		},
+		"uiRegisterControlType(): wrong size 1 for uiControlOSVtable",
+	},
+	{ NULL, NULL, NULL },
+};

test/controls_errors.cpp

@@ -215,6 +215,6 @@ static const struct checkErrorCase casesAfterOSVtable[] = {
 testingTest(ControlErrors)
 {
 	checkProgrammerErrors(t, casesBeforeOSVtable);
-	// OS vtable sizes are tested per-OS
+	checkProgrammerErrors(t, controlOSVtableCases);
 	checkProgrammerErrors(t, casesAfterOSVtable);
 }

test/meson.build

@@ -16,8 +16,11 @@ if libui_OS == 'windows'
 		'controls_windows.c',
 	]
 elif libui_OS == 'darwin'
+	add_languages('objcpp',
+		required: true)
 	libui_test_sources += [
 		'controls_darwin.m',
+		'controls_darwin_errors.mm',
 	]
 else
 	libui_test_sources += [

test/test.h

@@ -57,6 +57,9 @@ extern size_t testImplDataSize(void);
 extern uint32_t testControlType;
 extern uint32_t testControlType2;
 
+// controls_errors.cpp
+extern const struct checkErrorCase controlOSVtableCases[];
+
 #ifdef __cplusplus
 }
 #endif