TOFIX historycopy

.vscode/launch.json

@@ -55,6 +55,33 @@
 				}
 			],
 			"preLaunchTask": "make_build"
+		},
+		{
+			"name": "(gdb) debug tests histo",
+			"type": "cppdbg",
+			"request": "launch",
+			"program": "${workspaceFolder}/build/history_test",
+			"args": [
+				"history_copy"
+			],
+			"stopAtEntry": false,
+			"cwd": "${fileDirname}",
+			"environment": [],
+			"externalConsole": false,
+			"MIMode": "gdb",
+			"setupCommands": [
+				{
+					"description": "Enable pretty-printing for gdb",
+					"text": "-enable-pretty-printing",
+					"ignoreFailures": true
+				},
+				{
+					"description": "Set Disassembly Flavor to Intel",
+					"text": "-gdb-set disassembly-flavor intel",
+					"ignoreFailures": true
+				}
+			],
+			"preLaunchTask": "make_build"
 		}
 	]
 }

CMakeLists.txt

@@ -77,4 +77,5 @@ add_test(test_history_insert_before ./history_test history_insert_before)
 add_test(test_history_delete_before ./history_test history_delete_before)
 add_test(test_history_last ./history_test history_last)
 add_test(test_history_first ./history_test history_first)
-add_test(test_history_append ./history_test history_append)
+add_test(test_history_append ./history_test history_append)
+add_test(test_history_copy ./history_test history_copy)

history.c

@@ -188,4 +188,28 @@ void history_delete_entire_history(history h) {
 	if (history_is_empty(history_prev(h)))
 		return history_free(history_delete_all_after(h, h));
 	return history_delete_entire_history(history_prev(h));
+}
+
+history history_copy(history h) {
+	history tmp = h;
+	if (history_is_empty(h)) {
+		return h;
+	}
+	h = history_first(h);
+	uint cpt = 0;
+	while (h != tmp) {
+		h = history_next(h);
+		cpt++;
+	}
+	history h2 = history_insert_first(history_create_empty(), h->state, h->i, h->j);
+	while (!history_is_empty(history_next(h))) {
+		h = history_next(h);
+		h2 = history_insert_after(h2, h2, h->state, h->i, h->j);
+		h2 = history_next(h2);
+	}
+	h2 = history_first(h2);
+	for (uint i = 0; i < cpt; i++) {
+		h2 = history_next(h2);
+	}
+	return h2;
 }

history_test.c

@@ -165,6 +165,18 @@ bool test_history_append(void) {
 	return true;
 }
 
+bool test_history_copy(void) {
+	history new = history_insert_first(history_create_empty(), S_LIGHTBULB, 4, 3);
+	assert(new);
+	new = history_insert_after(new, new, S_BLANK, 5, 8);
+	history h2 = history_copy(new);
+	assert(history_state(h2) != history_state(new));
+	assert(history_state(history_next(h2)) == history_state(history_next(new)));
+	history_delete_entire_history(h2);
+	history_delete_entire_history(new);
+	return true;
+}
+
 int usage(int argc, char* argv[]) {
 	fprintf(stderr, "Usage: %s <testname> [<...>]\n", argv[0]);
 	exit(EXIT_FAILURE);
@@ -206,6 +218,8 @@ int main(int argc, char* argv[]) {
 		ok = test_history_first();
 	else if (strcmp("history_append", argv[1]) == 0)
 		ok = test_history_append();
+	else if (strcmp("history_copy", argv[1]) == 0)
+		ok = test_history_copy();
 	else {
 		fprintf(stderr, "Error: test \"%s\" not found!\n", argv[1]);
 		exit(EXIT_FAILURE);