I come across a problem when using the "malloc" function to allocate memory for loading a texture image, mainly because ''malloc'' returns no value. I have heard that the problem only occurs in C++. Is there an alternative way to allocate memory for texture images? Thanks, -brian *keep it real* -Brian

there are many ways to allocate memory. however, if you are getting a "NULL" from the "malloc" function then there is probably a reason. try using "new" or "GlobalAlloc".

hmm, that''s unusual, it should return void* (void pointer). my compiler MSVS6 doesn''t seem to have this problem (even with C++) so i''d assume it some sort of software problem. try getting another copy of stdlib.h it may just be a typo in the declaration.

malloc is used like this
[source]
myTextureStructure* myTexture;

malloc(myTexture, amountOfMemoryYouWant);



"Now go away or I shall taunt you a second time"
- Monty Python and the Holy Grail
themGames Productions

nothing? malloc returns a pointer. If it returns nothing, it failed.

myPtr = (CMob*) malloc(sizeof(CMob));

Thanks guys, I''ve solved the problem by using "new" instead of "malloc". Who started the rumor that malloc returned NULL in my case? I said "no value", meaning i had an error from the compiler complaining that it can''t read a value from a "void" or something similar. Normally i use MingW, but i refer to the helpfile of Borland Turbo C++ 2.1 when saying "i''ve heard that it only occurs in C++". =) Thanks again-

*keep it real*
-Brian

most likely the reason you were getting a compile error using malloc is because you probably forgot to type cast the "void *" to whatever pointer type you were using.

int *p = malloc(4);

will cause an error because in cannot resolve the pointer type: you would need to explicitly type cast.

int *p = (int *)malloc(4);

will work correctly.

most likely the reason you were getting a compile error using malloc is because you probably forgot to type cast the "void *" to whatever pointer type you were using.

int *p = malloc(4);

will cause an error because in cannot resolve the pointer type: you would need to explicitly type cast.

int *p = (int *)malloc(4);

will work correctly.

Im using MSVS 6, and i can always get by without casting. I always do it like int *p = malloc(40 * sizeof(int)); Remember to have that * sizeof(int) in there, or it will allocate 40 bytes, and not space for 40 ints. Strangely though, with GlobalAlloc() Ive always had to cast the pointer.

~demosh

Some of the posters in this thread need to go to remedial C school!