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From: Keith Thompson <kst-u@mib.org>
Newsgroups: comp.lang.c
Subject: Re: sizeof(x) / sizeof(x[0])
Date: Sun, 15 Jan 2017 12:55:58 -0800
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Lőrinczy Zsigmond <nospam@for.me> writes:
> This snippet from gdb might be relevant:
>
> (gdb) print sizeof("ABCDEF")
> $5 = 7
>
> (gdb) print sizeof((char *)"ABCDEF")
> $6 = 4

A snippet of output from a C program would be more relevant.
gdb's evaluation of C expression isn't necessarily 100% reliable,
though it's correct in this case.

#include <stdio.h>
int main(void) {
    printf("%zu\n", sizeof "ABCDEF");
    printf("%zu\n", sizeof ((char*)"ABCDEF"));
}

output:
7
8

-- 
Keith Thompson (The_Other_Keith) kst-u@mib.org  <http://www.ghoti.net/~kst>
Working, but not speaking, for JetHead Development, Inc.
"We must do something.  This is something.  Therefore, we must do this."
    -- Antony Jay and Jonathan Lynn, "Yes Minister"