[ox/std] Add move constructor and set null terminator for String

deps/ox/src/ox/std/string.cpp

@@ -12,15 +12,24 @@
 namespace ox {
 
 String::String() noexcept {
-	m_buff.push_back(0);
+	if (m_buff.size()) {
+		m_buff[0] = 0;;
+	} else {
+		m_buff.push_back(0);
+	}
 }
 
 String::String(std::size_t cap) noexcept {
 	m_buff.resize(cap + 1);
+	m_buff[0] = 0;;
 }
 
 String::String(const char *str) noexcept {
-	m_buff.push_back(0);
+	if (m_buff.size()) {
+		m_buff[0] = 0;;
+	} else {
+		m_buff.push_back(0);
+	}
 	*this = str;
 }
 
@@ -28,6 +37,10 @@ String::String(String &other) noexcept {
 	m_buff = other.m_buff;
 }
 
+String::String(String &&other) noexcept {
+	m_buff = ox::move(other.m_buff);
+}
+
 const String &String::operator=(const char *str) noexcept {
 	std::size_t strLen = ox_strlen(str) + 1;
 	m_buff.resize(strLen + 1);

deps/ox/src/ox/std/string.hpp

@@ -29,6 +29,8 @@ class String {
 
 		String(String&) noexcept;
 
+		String(String&&) noexcept;
+
 		const String &operator=(const char *str) noexcept;
 
 		const String &operator=(char *str) noexcept;