Re: Can [] be made to work outside contexts of binary operators?

[Dmitry Olshansky via Digitalmars-d]

On 22-Oct-2015 18:57, Shriramana Sharma wrote:
I tried:
import std.stdio;
void main()
{
        int [5] vals = [1, 2, 3, 4, 5];
        writefln("A = %d, B = %d, C = %d, D = %d, E = %d", vals []);
}

but got thrown an exception that "%d is not a valid specifier for a range".

The Python equivalent to flatten a list works:

vals = [1, 2, 3, 4, 5]
print("A = {}, B = {}, C = {}, D = {}, E = {}".format(*vals))

Output:

A = 1, B = 2, C = 3, D = 4, E = 5

Question:

Can D's [] be made to work that way? I recently had to write custom
functions since I had an array representing numerical fields and wanted to
print them out with individual labels but I wasn't able to use a single
writefln with sufficient specifiers for that purpose because of this
limitation.


Hm writeln supportы cool printing of any range might be not quite what 
you want though.

e.g.

auto arr = [1.23, 5.46, 6.21, 7.7711, 9.81121];
writeln("%(%.2f, %)", arr); // would print coma separated list



--
Dmitry Olshansky