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From: "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com>
Newsgroups: comp.lang.c
Subject: Re: No warning at implicit removal of const. Was: relearning C: why
 does an in-place change to a char* segfault?
Date: Fri, 2 Aug 2024 16:11:43 -0700
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On 8/2/2024 3:29 PM, Ben Bacarisse wrote:
> "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> writes:
> 
>> For some reason I had a sort of a habit wrt const pointers:
>>
>> (experimental code, no ads, raw text...)
>> https://pastebin.com/raw/f52a443b1
>>
>> ________________________________
>> /* Interfaces
>> ____________________________________________________________________*/
>> #include <stddef.h>
>>
>>
>> struct object_prv_vtable {
>>    int (*fp_destroy) (void* const);
>> };
>>
>>
>> struct device_prv_vtable {
>>    int (*fp_read) (void* const, void*, size_t);
>>    int (*fp_write) (void* const, void const*, size_t);
>> };
> 
> Why?  It seems like an arbitrary choice to const qualify some pointer
> types and some pointed-to types (but never both).

I just wanted to get the point across that the first parameter, aka, 
akin to "this" in C++ is a const pointer. Shall not be modified in any 
way shape or form. It is as it is, so to speak:

void foo(struct foobar const* const self);

constant pointer to a constant foobar, fair enough?

void
foo(struct foobar const* const self)
{
    //self is there... Do not mutate it!
    //Please for self is "special"?
}


> 
>> ;^)
> 
> Does the wink mean I should not take what you write seriously?  If so,
> please ignore my question.
> 

The wink was meant to show my habit in basically a jestful sort of way. 
Some people did not seem to like it very much, even though its was just 
me doing my thing. I can adapt rather quickly.