Printing a C "string" with write(f)ln

Daniel Kozak via Digitalmars-d-learn digitalmars-d-learn at puremagic.com
Tue Feb 9 08:58:03 PST 2016


On Tuesday, 9 February 2016 at 16:52:09 UTC, Gary Willoughby 
wrote:
> On Tuesday, 9 February 2016 at 12:50:27 UTC, Jakob Ovrum wrote:
>> writefln et al sensibly does *not* assume that a pointer to 
>> char is a C string, for memory safety purposes.
>>
>> Print the result of std.string.fromStringz[1] instead:
>>
>> writeln(fromStringz(pString));
>> writefln("%s", fromStringz(pString));
>>
>> [1] http://dlang.org/phobos/std_string#fromStringz
>
> Or use `to` like this:
>
> import std.conv;
> writefln("%s", pString.to!(string));

this will allocate new string which can be performance problem.
Maybe:

writefln("%s", pString.to!(char[]));

But I do not know if this works and does not allocate


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