rob.s at telus.net
Mon Feb 28 23:15:33 PST 2005
Thank you for this tip. I've started using vim in X with syntax
highlighting turned on. I'm not sure how to phrase it, but my code looks
better, or simpler to understand, with this turned on.
Cade Cairns wrote:
>p.s. if you use an editor like vim with syntax highlighting turned on,
>it would have highlighted later code such as to indicate there was an
>error in your code. you might want to consider looking into using
>that, it is an invaluable tool to have!
>On Sun, 20 Feb 2005 09:43:39 -0700, Cade Cairns <cairnsc at gmail.com> wrote:
>>You are missing a closing ')' character in the second argument of the
>>first realloc() call. This affects the code for the rest of the file
>>(or until a matching ')' is found), which would have caused the second
>>error. You should hvae:
>> ptr = realloc(NULL, ((strlen(array) + 1) * sizeof(char)));
>>Alternatively you could remove the first '(' in the second argument
>>since it is not needed:
>> ptr = realloc(NULL, (strlen(array) + 1) * sizeof(char));
>>On Sat, 19 Feb 2005 20:03:28 -0700, Rob S <rob.s at telus.net> wrote:
>>>I've been learning C and I'm having a bit of trouble allocating memory
>>>with realloc() in two instances.
>>>gcc is rejecting each instance.
>>>I'd like to find out the correct useage of realloc() when allocating
>>>memory from a null pointer, and to free said memory with realloc() when
>>>its not needed anymore.
>>>Here's the code i've typed up. I was wondering if the members of the
>>>list could look at it and provide some advice?
>>> char *ptr, array = "This is a string.";
>>> int termination;
>>> /* this is where the first problem is. The code is used as its used
>>>in the book, but gcc isnt accepting it, and i dont know why. When i try
>>>to compile it, gcc spits out: parse error before ';' token. */
>>> ptr = realloc(NULL, ((strlen(array) + 1) * sizeof(char));
>>> if (ptr != NULL)
>>> termination = 0;
>>> strcpy(ptr, array);
>>> printf("%s\n", ptr);
>>> /* I think this is where the problem is, but gcc says there's a
>>>parse error before "else", two lines ahead. I'm not sure whats going on
>>>here either. In the manual i'm following, the code should compile as
>>>written. I really dont know whats going on */
>>> ptr = realloc(ptr, 0);
>>> printf("realloc() failed, exiting.\n");
>>> termination = 1;
>>> return termination;
>>>I havent had any problems with malloc(), calloc() or free(). I'll see if
>>>i can find some errata on the text, if there is any still on the net for
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