dev-cpp-users

[Dev-C++] Multidimensional arrays and memory leaks

[<tay...@dd...>]

Hi,

Since I tried to use a 2D array "number[50000][2]" I started to have random 
crashes at run time and debugging. 

I guess this is a memory handling problem (what do you think?). Thus, I tried
to put the array in the heap (would that help?). However I tried many way to do 
it without success. 

I declared the array in the header of a class as:

float number[][];

Then I tried to put it in the heap using GlobalAlloc in the constructor. 


Could anybody give me a hand? Thanks a lot.

Jorge 


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Re: [Dev-C++] Multidimensional arrays and memory leaks

[Jorge A. <jor...@ep...>]

First, allocate the "pointers" array, and then allocate the arrays=20
inside. In C:

number=3D(float **)malloc(2*sizeof(float *));
...
int i;
for(i=3D0;i<50000;i++){
    *(number+i)=3D(float *)malloc(sizeof(float));
    ...
}

and so on.

tay...@dd... escribi=F3:

>Hi,
>
>Since I tried to use a 2D array "number[50000][2]" I started to have ran=
dom=20
>crashes at run time and debugging.=20
>
>I guess this is a memory handling problem (what do you think?). Thus, I =
tried
>to put the array in the heap (would that help?). However I tried many wa=
y to do=20
>it without success.=20
>
>I declared the array in the header of a class as:
>
>float number[][];
>
>Then I tried to put it in the heap using GlobalAlloc in the constructor.=
=20
>
>
>Could anybody give me a hand? Thanks a lot.
>
>Jorge=20
>
>
>---------------------------------------------
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>
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>
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