openrc/src/strlist.h

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/*
strlist.h
String list macros for making char ** arrays
Copyright 2007 Gentoo Foundation
Based on a previous implementation by Martin Schlemmer
Released under the GPLv2
*/
#ifndef __STRLIST_H__
#define __STRLIST_H__
/* FIXME: We should replace the macro with an rc_strlist_foreach
function, but I'm unsure how to go about this. */
/* Step through each entry in the string list, setting '_pos' to the
beginning of the entry. '_counter' is used by the macro as index,
but should not be used by code as index (or if really needed, then
it should usually by +1 from what you expect, and should only be
used in the scope of the macro) */
#define STRLIST_FOREACH(_list, _pos, _counter) \
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if ((_list) && _list[0] && ! (_counter = 0)) \
while ((_pos = _list[_counter++]))
#endif /* __STRLIST_H__ */