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Hobbyist Programmer
Join Date: Jan 2006
Location: Menidi, Athens, Greece
Posts: 243
Rep Power: 3
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Stadard C i/o problems with C++ classes
I am trying to write some code that saves the contents of a C++ class in a file. So, I am experimenting with some C and C++ i/o code, but I am stuck in some things...
Lets say I have the following code: cpp Syntax (Toggle Plain Text)
The error I get when I run this code is: SoulFramework(1211) malloc: *** Deallocation of a pointer not malloced: 0x3007d0; This could be a double free(), or free() called with the middle of an allocated block; Try setting environment variable MallocHelp to see tools to help debug SoulFramework(1211) malloc: *** Deallocation of a pointer not malloced: 0x300790; This could be a double free(), or free() called with the middle of an allocated block; Try setting environment variable MallocHelp to see tools to help debug However, if I use character arrays or something like integers in the struct, the code works just fine. 1)Why? Does that have something to do with classes like std::string and vector that are dynamic? 2)If I definitely want to use those classes with standard C i/o what should I do? 3)If I decide to use C++ i/o, what can I do to store the elements of a class like a vector<customStruct> inside a file? The contents of the customStruct could be integers, floats, or std::strings. EDIT: To make myself clear: I have a class, that occupies some memory. Is there any way to save this memory piece into a (binary?) file and then load it the same way? I suppose the file would be unreadable by a text editor, this way.
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Project::Soulstorm (personal homepage) Last edited by Soulstorm; Jul 13th, 2007 at 12:27 PM. |
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