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Forum Topic - gf_cursor_t cursor shape const declaration: (3 Items)

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Mike Gorchak

03/24/2009 3:12 AM

post25067

gf_cursor_t cursor shape const declaration

gf_cursor_t has the following declaration:
const _uint8	*image0;
const _uint8	*image1;

This "const" declares non-constant pointer to constant data.

when I use this construction:

image0=malloc(size);

compiler will be happy, but when I will try to free this memory, compiler will emit warning about "const qualifier 
discarding".

Misha Nefedov

03/24/2009 8:30 AM

post25087

Re: gf_cursor_t cursor shape const declaration

The API promises that it won't change the contents of these pointers. You allocate these structures, so you can just 
cast (void*) them when you call the free().
-Misha.

Mike Gorchak

03/24/2009 8:58 AM

post25091

Re: gf_cursor_t cursor shape const declaration

I can understand your position, but anyway I disagree with this const in its place :)

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