Using a char value >= 128
Per Nordlöw
per.nordlow at gmail.com
Sun Oct 27 12:44:05 UTC 2019
In which circumstances can a `char` be initialized a non-7-bit
value (>= 128)? Is it possible only in non- at safe code?
And, if so, what will be the result of casting such a value to
`dchar`? Will that result in an exception or will it interpret
the `char` using a 8-bit character encoding?
I'm asking because I'm pondering about how to specialize the
non-7-bit `needle`-case of the following array-overload of
`startsWith` when `T` is `char`:
bool startsWith(T)(scope const(T)[] haystack,
scope const T needle)
{
static if (is(T : char)) { assert(needle < 128); } // TODO
convert needle to `char[]` and call itself
if (haystack.length >= 1)
{
return haystack[0] == needle;
}
return false;
}
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