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Re: Freeing a dynamically allocated array of structs within a struct in C

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On 8/30/2021 12:38 AM, Keith Thompson wrote:
> Barry Schwarz <schwarzb@delq.com> writes:
>> On Sun, 29 Aug 2021 08:34:56 -0700 (PDT), Bithov Vinu Student
>> <vinub@calday.co.uk> wrote:
> [...]
>>> deck_entry* parse_deck_entry(char* to_parse) {
>>> 	char* string_to_parse = strdup(to_parse);
>>
>> strdup is non-standard but common extension.  Most implementations use
>> malloc to allocate memory, copy the data pointed to by to_parse into
>> this allocated memory, and return the address of the allocated memory.
>> Does yours do this also?
> 
> strdup is standardized by POSIX.  Yes, as far as the C standard is
> concerned it's an extension, but it's unlikely that an implementation
> would provide a function by that name that *doesn't* allocate memory
> "as if by using malloc()".

And, in any case, "man strdup" would clarify this point. Documentation 
is written for a purpose.

> 
> It's also proposed for including in the next edition of the
> C standard.  See the N2596 draft.
> 
>>> 	char* a = strsep(&string_to_parse, ": ");
>>
>> strsep appears to be a function you wrote.  Was the standard strtok
>> function not adequate for your needs?
> 
> It's unlikely that the OP wrote strsep.  It's not defined by C or
> POSIX, but it was introduced in BSD and is provided by glibc (and
> probably other library implementations).
> 
> [...]
> 

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Freeing a dynamically allocated array of structs within a struct in C Bithov Vinu Student <vinub@calday.co.uk> - 2021-08-29 08:34 -0700
  Re: Freeing a dynamically allocated array of structs within a struct in C Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2021-08-29 15:43 +0000
    Re: Freeing a dynamically allocated array of structs within a struct in C Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2021-08-29 16:12 +0000
      Re: Freeing a dynamically allocated array of structs within a struct in C Tim Rentsch <tr.17687@z991.linuxsc.com> - 2021-09-06 05:46 -0700
  Re: Freeing a dynamically allocated array of structs within a struct in C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-08-29 17:17 +0100
  Re: Freeing a dynamically allocated array of structs within a struct in C Bonita Montero <Bonita.Montero@gmail.com> - 2021-08-29 20:01 +0200
    Re: Freeing a dynamically allocated array of structs within a struct in C Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2021-08-29 18:21 +0000
      Re: Freeing a dynamically allocated array of structs within a struct in C Bonita Montero <Bonita.Montero@gmail.com> - 2021-08-29 20:34 +0200
    Re: Freeing a dynamically allocated array of structs within a struct in C Bonita Montero <Bonita.Montero@gmail.com> - 2021-08-30 09:01 +0200
      Re: Freeing a dynamically allocated array of structs within a struct in C Robert Latest <boblatest@yahoo.com> - 2021-08-31 05:44 +0000
      Re: Freeing a dynamically allocated array of structs within a struct in C Kaz Kylheku <563-365-8930@kylheku.com> - 2021-08-31 07:50 +0000
        Re: Freeing a dynamically allocated array of structs within a struct in C Bonita Montero <Bonita.Montero@gmail.com> - 2021-08-31 10:59 +0200
    Re: Freeing a dynamically allocated array of structs within a struct in C Bonita Montero <Bonita.Montero@gmail.com> - 2021-08-30 09:45 +0200
      Re: Freeing a dynamically allocated array of structs within a struct in C Bonita Montero <Bonita.Montero@gmail.com> - 2021-08-30 10:15 +0200
  Re: Freeing a dynamically allocated array of structs within a struct in C Kaz Kylheku <563-365-8930@kylheku.com> - 2021-08-29 18:14 +0000
  Re: Freeing a dynamically allocated array of structs within a struct in C Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2021-08-29 18:18 +0000
  Re: Freeing a dynamically allocated array of structs within a struct in C Barry Schwarz <schwarzb@delq.com> - 2021-08-29 11:44 -0700
    Re: Freeing a dynamically allocated array of structs within a struct in C Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2021-08-29 19:04 +0000
      Re: Freeing a dynamically allocated array of structs within a struct in C Barry Schwarz <schwarzb@delq.com> - 2021-08-29 14:15 -0700
        Re: Freeing a dynamically allocated array of structs within a struct in C scott@slp53.sl.home (Scott Lurndal) - 2021-08-29 21:19 +0000
          Re: Freeing a dynamically allocated array of structs within a struct in C Barry Schwarz <schwarzb@delq.com> - 2021-08-29 18:14 -0700
        Re: Freeing a dynamically allocated array of structs within a struct in C Bonita Montero <Bonita.Montero@gmail.com> - 2021-08-30 18:27 +0200
      Re: Freeing a dynamically allocated array of structs within a struct in C Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2021-08-30 16:17 +0000
        Re: Freeing a dynamically allocated array of structs within a struct in C James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-08-30 14:14 -0400
          Re: Freeing a dynamically allocated array of structs within a struct in C Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2021-08-30 11:39 -0700
            Re: Freeing a dynamically allocated array of structs within a struct in C James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-08-31 10:08 -0400
            Re: Freeing a dynamically allocated array of structs within a struct in C Kaz Kylheku <563-365-8930@kylheku.com> - 2021-09-01 04:40 +0000
              Re: Freeing a dynamically allocated array of structs within a struct in C Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2021-09-01 00:57 -0700
          Re: Freeing a dynamically allocated array of structs within a struct in C Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2021-08-30 19:16 +0000
            Re: Freeing a dynamically allocated array of structs within a struct in C Manfred <noname@add.invalid> - 2021-08-30 21:49 +0200
          Re: Freeing a dynamically allocated array of structs within a struct in C "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-08-30 12:49 -0700
          Re: Freeing a dynamically allocated array of structs within a struct in C scott@slp53.sl.home (Scott Lurndal) - 2021-08-30 22:31 +0000
            Re: Freeing a dynamically allocated array of structs within a struct in C Tim Rentsch <tr.17687@z991.linuxsc.com> - 2021-09-30 07:04 -0700
    Re: Freeing a dynamically allocated array of structs within a struct in C Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2021-08-29 15:38 -0700
      Re: Freeing a dynamically allocated array of structs within a struct in C Manfred <noname@add.invalid> - 2021-08-30 14:21 +0200
      Re: Freeing a dynamically allocated array of structs within a struct in C Bonita Montero <Bonita.Montero@gmail.com> - 2021-08-30 18:29 +0200
        Re: Freeing a dynamically allocated array of structs within a struct in C Bart <bc@freeuk.com> - 2021-08-30 18:30 +0100
          Re: Freeing a dynamically allocated array of structs within a struct in C Bonita Montero <Bonita.Montero@gmail.com> - 2021-08-31 04:22 +0200

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