• Chopin (8/8) Dec 11 2012 Is this the fastest way to append a char to string?
• monarch_dodra (4/12) Dec 11 2012 This may or may not be the fastest way.
• bearophile (8/15) Dec 11 2012 Try the appender from std.array. It's supposed to be faster, but

"Chopin" <robert.bue gmail.com> writes:

Is this the fastest way to append a char to string?

char c = 'a';
string s;
s ~= c;

?

I have a program that does this many many times... and it's slow. 
So I was wondering it it could be it.

Thanks for tips!

"monarch_dodra" <monarchdodra gmail.com> writes:

On Tuesday, 11 December 2012 at 15:52:31 UTC, Chopin wrote:
 Is this the fastest way to append a char to string?

 char c = 'a';
 string s;
 s ~= c;

 ?

 I have a program that does this many many times... and it's 
 slow. So I was wondering it it could be it.

 Thanks for tips!

This may or may not be the fastest way.

This should give you a good idea of what's going on:
http://dlang.org/d-array-article.html

"bearophile" <bearophileHUGS lycos.com> writes:

Chopin:

 Is this the fastest way to append a char to string?

 char c = 'a';
 string s;
 s ~= c;

 ?

 I have a program that does this many many times... and it's 
 slow. So I was wondering it it could be it.

Try the appender from std.array. It's supposed to be faster, but 
sometimes it's not faster. There was a patch to make it actually 
faster, but I don't know if it was already merged.

But if your program is "slow", then first of all profile it with 
-profile. Then define what you mean by "slow".

Bye,
bearophile