It's filed as enhancement 12418 [2]:
C-strings processing is a special and common case so:
1. C-strings should be supported with both performance and usability.
2. There should be a dedicated module for C-strings (instead of adding
such functions here and there in other modules).
Current state: there is no good support for C-strings in Phobos, there
is slow and broken `toStringz` (Issue 12417 [3]), and no standard way to
make many common operations, like converting returned C-string to string
and releasing its memory or creating a C-string from string using an
allocation function.
So I propose to add `unstd.c.string` [1] module to Phobos which include
all use-cases I have seen implementing (correct and fast in contrast to
existing ones like GtkD (yes, it's both incorrect and slow because of
tons of GC allocations)) C library wrappers.
[1] http://denis-sh.bitbucket.org/unstandard/unstd.c.string.html
[2] https://d.puremagic.com/issues/show_bug.cgi?id=12418
[3] https://d.puremagic.com/issues/show_bug.cgi?id=12417
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Денис В. Шеломовский
Denis V. Shelomovskij