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Jul - Computers and Technology - Having a problem with a C++ function New poll - New thread - New reply
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Sukasa

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Since: 07-07-07


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Posted on 06-06-09 06:14:20 PM Link | Quote
Me PM
Apparently this function in SDL_Mixer keeps dying, and I'm not sure why. Does anyone have any ideas? (For the record, It's not my function, it's just where the crash is occuring)

static void add_music_decoder(const char *decoder)
{
void *ptr = realloc(music_decoders, num_decoders * sizeof (const char **));
if (ptr == NULL) {
return; /* oh well, go on without it. */
}
music_decoders = (const char **) ptr;
music_decoders[num_decoders++] = decoder;
}

I'm using Visual Studio 2008, and music_decoders and num_decoders are both correct. ptr is 0x00000000, and the best I can tell, the crash seems to be in the realloc() function. Does anyone have any idea how I could handle this crash problem?

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paulguy

Green Birdo
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From: Buffalo, NY

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Posted on 06-06-09 09:53:53 PM Link | Quote
I think I can see why it's crashing, but as far as dealing with it... update SDL or just make your own DLL with the fixes and ship your program with that.

As for why, it's only allocating enough space for the original size of the array. it's not enlarging it at all. If the function began with num_decoders++, then removed the one later on, it would probably work. Unless I'm completely missing something, which is usually the case!
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Jul - Computers and Technology - Having a problem with a C++ function New poll - New thread - New reply


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