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Memory implications and runtime behaviour

Posted on 2002-03-29
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Last Modified: 2010-04-02
const char* strName="";
strName=getstr(var);
Func(strName);


const char* strName="none";
strName=getstr(var);
Func(strName);

What are the implications of this code w.r.t memory and runtime behaviour

Getting a runtime assertion.
Could this part be responsible?

Better way of doing it.
NOTE: Func cannot take a typecasted const char* as input.
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Question by:bitnal
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5 Comments
 
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Accepted Solution

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Axter earned 50 total points
ID: 6905818
If you which to modify the data that is being pointed to by strName, then try the following instead;

char strName[] = "none";


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Author Comment

by:bitnal
ID: 6905931
Wont that create a problem in calling the function func().
This is a 3-party function and I cannot change it.
secondly, Will this format not require any allocation and freeing of memory?

thanks.
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LVL 30

Expert Comment

by:Axter
ID: 6905968
>>Wont that create a problem in calling the function func().
What type does the Func take?

>>secondly, Will this format not require any allocation >>and freeing of memory?
No.
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LVL 30

Expert Comment

by:Axter
ID: 6905978
The code you posted is a little confusing.

What is "var"?  What type is it, and where is it coming from?

If var is a non-const variable, then you can change your code to the following:

char* strName=getstr(var);
Func(strName);


With out seeing the rest of your code, it's hard to tell what you really need.

Please post more code.
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LVL 11

Expert Comment

by:griessh
ID: 6956305
Dear bitnal

I think you forgot this question. I will ask Community Support to close it unless you finalize it within 7 days. You can always request to keep this question open. But remember, experts can only help you if you provide feedback to their questions.
Unless there is objection or further activity,  I will suggest to accept

     "Axter"

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