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ne0h
Joined: 21 Feb 2008
Posts: 386
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 Posted: Thu Sep 18, 2008 12:50 am Post subject: Free memory allocated from a function |
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Hi,
I'm still working on Xplora, but I've see that the memory is not completely free when returning from the Text editor, so there's a solution to free all the memory allocated by this function or I can only try to improve the code to free the allocated memory?
Thanks in advance |
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Pirata Nervo
Joined: 09 Oct 2007
Posts: 409
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| Posted: Thu Sep 18, 2008 1:40 am Post subject: |
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Improve the code and free any pointers you have allocated. Don't forget to free images too.
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ne0h
Joined: 21 Feb 2008
Posts: 386
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| Posted: Thu Sep 18, 2008 4:57 am Post subject: |
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| Yes, I know that this is the best solution but I'll see if ther's another possibility... |
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ne0h
Joined: 21 Feb 2008
Posts: 386
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| Posted: Thu Sep 18, 2008 5:29 am Post subject: |
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| I've a newbie question, is better to do many if\else if or a switch\case loop? ( for execution speed performance ) |
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Pirata Nervo
Joined: 09 Oct 2007
Posts: 409
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| Posted: Thu Sep 18, 2008 5:57 am Post subject: |
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it is better to use switch (when you can) instead of many if's. It makes your code neat and clear. I don't know about speed but it might be the same.
Remember that if's can make things VERY slow. Example:
| Code: |
char charv[200];
sprintf(charv, "my name is blablabla");
if (strlen(charv) >= 100 && strcmp(charv, "my name is blablabla") == 0)
{
// etc
}
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It executes 2 functions:
strlen
strcmp
the actual if does not slow down but its conditions can slow down your program.
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ne0h
Joined: 21 Feb 2008
Posts: 386
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| Posted: Fri Sep 19, 2008 1:03 am Post subject: |
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Ok, thanks!
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Super Sheep
Joined: 23 Mar 2008
Posts: 31
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| Posted: Sat Sep 20, 2008 9:14 am Post subject: |
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| Pirata Nervo wrote: | it is better to use switch (when you can) instead of many if's. It makes your code neat and clear. I don't know about speed but it might be the same.
Remember that if's can make things VERY slow. Example:
| Code: |
char charv[200];
sprintf(charv, "my name is blablabla");
if (strlen(charv) >= 100 && strcmp(charv, "my name is blablabla") == 0)
{
// etc
}
|
It executes 2 functions:
strlen
strcmp
the actual if does not slow down but its conditions can slow down your program. |
Thats pretty much the same as running two if statements in the assembly. |
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Pirata Nervo
Joined: 09 Oct 2007
Posts: 409
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| Posted: Sat Sep 20, 2008 5:51 pm Post subject: |
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I know but we were not talking about that, we were talking about the "slow down".
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Super Sheep
Joined: 23 Mar 2008
Posts: 31
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| Posted: Sun Sep 21, 2008 12:58 am Post subject: |
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| Pirata Nervo wrote: | | I know but we were not talking about that, we were talking about the "slow down". |
Exactly...
The number of conditions (n) in a single if can also be represented as n if statements.
The actual if CAN cause slowdowns, as it is an instruction, but its so small.
Your example is terrible btw. |
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Pirata Nervo
Joined: 09 Oct 2007
Posts: 409
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| Posted: Sun Sep 21, 2008 2:45 am Post subject: |
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Then why is my example terrible?
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