Use more [[nodiscard]]

src/CSFML/Char32.hpp

@@ -46,7 +46,7 @@ static_assert(alignof(sfChar32) == alignof(char32_t));
 ////////////////////////////////////////////////////////////
 // Define utils to copy from / to sfChar32 and sf::String
 ////////////////////////////////////////////////////////////
-inline sfChar32* copyToChar32(const sf::String& str)
+[[nodiscard]] inline sfChar32* copyToChar32(const sf::String& str)
 {
     std::size_t byteCount = sizeof(sfChar32) * str.getSize();
     auto*       utf32     = static_cast<sfChar32*>(malloc(byteCount + sizeof(sfChar32)));

src/CSFML/Network/IpAddress.cpp

@@ -35,7 +35,7 @@
 namespace
 {
 // Helper function for converting a SFML address to a CSFML one
-sfIpAddress fromSFMLAddress(std::optional<sf::IpAddress> address)
+[[nodiscard]] sfIpAddress fromSFMLAddress(std::optional<sf::IpAddress> address)
 {
     sfIpAddress result = {0};
 
@@ -48,7 +48,7 @@ sfIpAddress fromSFMLAddress(std::optional<sf::IpAddress> address)
 }
 
 // Helper function for converting a CSFML address to a SFML one
-std::optional<sf::IpAddress> toSFMLAddress(sfIpAddress address)
+[[nodiscard]] std::optional<sf::IpAddress> toSFMLAddress(sfIpAddress address)
 {
     return sf::IpAddress::resolve(address.address);
 }