Some @nogc text conversion in Phobos?

[bearophile via Digitalmars-d]

Dicebot:

> Benefits: no arbitrary message length limit, no string 
> construction unless toString is actually called.

A nothrow @nogc function like the bufferText I've suggested is 
also useful in situations like this (currently this can't 
compile):


struct Foo {
     int[3] data;

     ref int opIndex(in size_t i) pure nothrow @safe @nogc
     in {
         import std.string: format;
         assert(i < data.length,
                format("opIndex, %d >= %d", i, data.length));
     } body {
         return data[i];
     }
}

void main() {
     Foo f;
     auto r = f[10];
}


Bye,
bearophile