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

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On Sun, 29 Aug 2021 19:04:18 +0000, Lew Pitcher wrote:

> FWIW
> 
> On Sun, 29 Aug 2021 11:44:40 -0700, Barry Schwarz wrote:
> 
>> strdup is non-standard but common extension. 
> 
> strdup() is defined in the Open Group (POSIX) Base Specifications Issue 6,
> circa 2004. The Open Group's Base Specifications define the minimum standards
> for the Unix operating system, including standardized extensions to the C
> library.


If the complaint is that strdup() is not a C standard function, then I submit
that a competent  C programmer would find it trivial to create a function that
duplicates the POSIX strdup() function as documented at 
  https://pubs.opengroup.org/onlinepubs/009696899/functions/strdup.html

I believe that, outside of the function name itself, this C99-compliant code ...
  #include <stdlib.h>
  #include <string.h>

  char *dupstr(const char *string)
  {
    char *temp;

    if ((temp = malloc(strlen(string)+1))) strcpy(temp,string);
    return temp;
  }
satisfies the POSIX requirement.

> [snip]
>> strsep appears to be a function you wrote. 
> 
> strsep() comes from the 4.4 BSD Unix standard C library extensions.
> 
> [snip]

As for strsep(), my personal opinion is that the OP's program would be
better served if the OP had used the C standard function strtok().

-- 
Lew Pitcher
"In Skills, We Trust"

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Thread

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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