In the nightly Rust it is no longer possible to designate a string literal as String with a "~" character.

In C++, for example, I'm using user-defined literals to concatenate string literals without the crust of mentioning std::string every time:

inline std::string operator"" _s (const char* str, size_t size) {return std::string (str, size);}
foo ("Hello, "_s + "world!");


Is there a similar feature existing or planned in Rust to make string literal concatenation less painful than String::from_str ("Hello, ") + "world!"?


Question: Layman's guide to getting started with Forex (foreign exchange trading)?
Answer: I definitely can recommend you a site called babypips. Their beginner course section is great to get a good overview what you "could" do in FOREX trading. For starting out I definitely recommend a dummy account! (NEVER use real money in the beginning!)