Type sniffing at runtime

[Alex]

On Saturday, 16 May 2020 at 05:22:49 UTC, n0den1te wrote:
> [...]

For example, like this:

´´´
import std;

alias types = AliasSeq!(
     bool, byte, ubyte, short, ushort, int, uint, long, ulong, 
float, double, real, char, wchar, dchar
);

void main()
{
	static foreach(type; types)
     {
         sniffType!type;
     }
}


void sniffType(T)() {
     writeln("Type           : ", T.stringof);
     writeln("Length in bytes: ", T.sizeof);
     static if(__traits(compiles, T.min))
         writeln("Minimum value  : ", T.min);
     writeln("Maximum value  : ", T.max);
     writeln("Initial value  : ", T.init);
}

´´´

However, for the char, wchar and dchar types the results of min, 
max and init are somewhat cumbersome. And T.min does not compile 
for the floating point types.