Type sniffing at runtime
n0den1te
somebody at theinternet.village
Sat May 16 05:22:49 UTC 2020
Hi,
I am working through the book 'Programming in D' and wanted
to take the sample program on
http://ddili.org/ders/d.en/types.html, one step further:
import std.stdio;
void main() {
writeln("Type : ", int.stringof);
writeln("Length in bytes: ", int.sizeof);
writeln("Minimum value : ", int.min);
writeln("Maximum value : ", int.max);
writeln("Initial value : ", int.init);
}
Say, I want to have a list of types and sniff each type as I go:
(this doesn't compile, yet)
auto types = [bool, byte, ubyte, short, ushort, int, uint,
long, ulong, float, double, real, char, wchar, dchar];
for (t; types) {
sniffType(t);
}
void sniffType(auto myType) {
writeln('Type : ', myType.stringof);
writeln('Length in bytes: ', myType.sizeof);
writeln('Minimum value : ', myType.min);
writeln('Maximum value : ', myType.max);
writeln('Initial value : ', myType.init);wri
}
How would I go about achieving this?
PS: Thanks for making this book online, Ali!
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