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From: Tim Rentsch <tr.17687@z991.linuxsc.com>
Newsgroups: comp.lang.c
Subject: Re: is it possible to point to a slice of an array without malloc or VLAs?
Date: Wed, 28 Aug 2024 08:33:32 -0700
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Blue-Maned_Hawk <bluemanedhawk@invalid.invalid> writes:

> Mark Summerfield wrote:
>
>> I'm using getopt_long() to process a command line.
>> So after a typical call I might have:
>>
>> argv == {"./efind", "-D", "-x", "one", "two", "three", "four"}
>> optind == 3
>>
>> What I'd like to do (without copying or mallocing and without
>> using a VLA)
>> is to get a pointer to a slice of argv, specifically,
>> {"one", "two", "three", "four"}.
>> In Python terms argv[optind:argc].
>>
>> Is this possible in C?
>
> Yes.
>
> const char * argv_slice[argc - optind] = &argv[optind];

Presumably the declaration that was intended is something more
like

  const char *(*argv_slice)[argc - optind] = (void*) &argv[optind];

It should be noted that this solution satisfies the stated
requirement of not using a VLA, but it does rely on using
a variably modified type.