1 files changed, 30 insertions, 0 deletions
diff --git a/std/str.c b/std/str.c
new file mode 100644
index 0000000..16f756b
--- /dev/null
+++ b/std/str.c
@@ -0,0 +1,30 @@
+#include <string.h>
+#include <stdlib.h>
+#include "../api/vm.h"
+#include "../api/str.h"
+
+UwUVMValue uwu_cat(UwUVMArgs *args)
+{
+	size_t total_len = 0;
+	size_t lengths[args->num];
+	char  *substrs[args->num];
+
+	for (size_t i = 0; i < args->num; i++) {
+		substrs[i] = uwustr_get(uwuvm_get_arg(args, i));
+		lengths[i] = strlen(substrs[i]);
+		total_len += lengths[i];
+	}
+
+	char result[total_len + 1];
+	char *result_ptr = result;
+
+	for (size_t i = 0; i < args->num; i++) {
+		strcpy(result_ptr, substrs[i]);
+		free(substrs[i]);
+		result_ptr += lengths[i];
+	}
+
+	*result_ptr = 0;
+
+	return uwustr_create(result);
+}