Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.c > #161975

Re: Allocate length of word vs fixed length

Show all headers | View raw

On 2021-07-19, dfs <nospam@dfs.com> wrote:
> 		//different memory allocations
> 		if(memoption==1)
> 		{memlen=strlen(word);}

/* allocate one extra for the terminating null character */
                 memlen = strlen(word) + 1;

> 		else
> 		{memlen=maxlen;}
> 		
> 		words[i] = malloc(sizeof(char*) * memlen);

/* words[i] contains memlen chars, not memlen pointers to char */
  		words[i] = malloc(sizeof(char) * memlen);
       /* or */ words[i] = malloc(memlen); /* sizeof(char) == 1 by definition */
       /* or */ words[i] = malloc(memlen * sizeof *words[i]); /* clc idiom */

> 		memtotal += memlen;
> 		
> 		strcpy(words[i],word);
> 		
> 		//printf("%d. '%s' ",i,words[i]);
> 		i++;
> 	}
> 		
> 	fclose(fwords);
> 	printf("\nloaded %d words\n",i-1);

/* the number of words is i (numbered from 0 to i-1) */
  	printf("\nloaded %d words\n",i);

> 	printf("\nFirst and Last words = '%s', '%s'\n",words[0],words[i-1]);

Back to comp.lang.c | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Allocate length of word vs fixed length dfs <nospam@dfs.com> - 2021-07-19 12:50 -0400
  Re: Allocate length of word vs fixed length Bart <bc@freeuk.com> - 2021-07-19 19:01 +0100
    Re: Allocate length of word vs fixed length dfs <nospam@dfs.com> - 2021-07-19 14:29 -0400
      Re: Allocate length of word vs fixed length Bart <bc@freeuk.com> - 2021-07-19 19:49 +0100
        Re: Allocate length of word vs fixed length dfs <nospam@dfs.com> - 2021-07-19 18:01 -0400
          Re: Allocate length of word vs fixed length Bart <bc@freeuk.com> - 2021-07-19 23:25 +0100
      Re: Allocate length of word vs fixed length scott@slp53.sl.home (Scott Lurndal) - 2021-07-19 20:00 +0000
        Re: Allocate length of word vs fixed length Branimir Maksimovic <branimir.maksimovic@gmail.com> - 2021-07-19 23:29 +0000
      Re: Allocate length of word vs fixed length Real Troll <real.troll@trolls.com> - 2021-07-20 00:30 +0100
        Re: Allocate length of word vs fixed length DFS <nospam@dfs.com> - 2021-07-19 20:40 -0400
          Re: Allocate length of word vs fixed length Real Troll <real.troll@trolls.com> - 2021-07-20 17:00 +0000
      Re: Allocate length of word vs fixed length Kaz Kylheku <563-365-8930@kylheku.com> - 2021-07-24 01:07 +0000
  Re: Allocate length of word vs fixed length David Brown <david.brown@hesbynett.no> - 2021-07-19 21:35 +0200
    Re: Allocate length of word vs fixed length dfs <nospam@dfs.com> - 2021-07-19 18:02 -0400
  Re: Allocate length of word vs fixed length Ike Naar <ike@rie.sdf.org> - 2021-07-19 21:11 +0000
    Re: Allocate length of word vs fixed length dfs <nospam@dfs.com> - 2021-07-19 18:03 -0400
      Re: Allocate length of word vs fixed length Ike Naar <ike@sdf.org> - 2021-07-20 05:28 +0000
  Re: Allocate length of word vs fixed length dfs <nospam@dfs.com> - 2021-07-19 18:21 -0400
    Re: Allocate length of word vs fixed length Bart <bc@freeuk.com> - 2021-07-19 23:29 +0100
      Re: Allocate length of word vs fixed length dfs <nospam@dfs.com> - 2021-07-19 18:40 -0400
  Re: Allocate length of word vs fixed length Peter 'Shaggy' Haywood <phaywood@alphalink.com.au> - 2021-07-20 11:44 +1000
  Re: Allocate length of word vs fixed length Real Troll <real.troll@trolls.com> - 2021-07-20 22:15 +0000
    Re: Allocate length of word vs fixed length dfs <nospam@dfs.com> - 2021-07-20 20:22 -0400
      Re: Allocate length of word vs fixed length dfs <nospam@dfs.com> - 2021-07-21 23:23 -0400

csiph-web