template syntax

[H. S. Teoh]

On Wed, Jan 30, 2019 at 01:54:47PM -0800, Walter Bright via Digitalmars-d wrote:
> On 1/30/2019 12:12 PM, H. S. Teoh wrote:
> > Please, let's leave C++'s < > mistake in the dustbins of history.
> > Such suffering ought not be inflicted upon our future generations.
> 
> To pile it on, C++ iostreams overloads << and >> operators.

Sigh, you made me do it. Couldn't resist:

	#include <iostream>
	
	struct Sigh { };
	struct You {
		Sigh operator>>(std::string s) { return Sigh(); }
	} U;
	struct Me { };
	struct Do {
		Me operator<(Sigh m) { return Me(); }
	} traits;
	struct It { } T;
	
	struct Couldnt {
		void operator,(Me i) {
			std::cout << "Goodbye, earth" << std::endl;
		}
	};
	struct Resist {
		void operator()(std::string msg) {
			std::cout << msg << std::endl;
		}
		Couldnt operator<(It t) { return Couldnt(); }
	} fun;
	
	int main() {
		// What does this line do?
		fun<T, traits<U>>("Hello world");
	}

:-D


T

-- 
Never trust an operating system you don't have source for! -- Martin Schulze