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How do malloc() and free() work?
I want to know how malloc and free work.
13 Answers
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How does free know how much to free?
...C programming, you can pass any kind of pointer you like as an argument to free, how does it know the size of the allocated memory to free? Whenever I pass a pointer to some function, I have to also pass the size (ie an array of 10 elements needs to receive 10 as a parameter to know the size of the ...
Setting variable to NULL after free
In my company there is a coding rule that says, after freeing any memory, reset the variable to NULL . For example ...
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How to track down a “double free or corruption” error
...lloc, which will cause your program to abort at the point where the double free is done.
You can set this from gdb by using the set environment MALLOC_CHECK_ 2 command before running your program; the program should abort, with the free() call visible in the backtrace.
see the man page for malloc(...
C++, Free-Store vs Heap
Dynamic allocations with new/delete are said to take place on the free-store , while malloc/free operations use the heap .
I'd like to know if there is an actual difference, in practice.
Do compilers make a distinction between the two terms? ( Free store and Heap , not new/malloc )
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What is the difference between new/delete and malloc/free?
What is the difference between new / delete and malloc / free ?
15 Answers
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TLSF源码及算法介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
... *, size_t, void *);
extern void *malloc_ex(size_t, void *);
extern void free_ex(void *, void *);
extern void *realloc_ex(void *, size_t, void *);
extern void *calloc_ex(size_t, size_t, void *);
extern void *tlsf_malloc(size_t size);
extern void tlsf_free(void *ptr);
extern void *tlsf_reall...
How can I record a Video in my Android App.?
...h();
}
}
It's from my book: Pro Android Media: Developing Graphics, Music, Video, and Rich Media Apps for Smartphones and Tablets
Also, do not forget to include these permissions in manifest:
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission androi...
Free space in a CMD shell
Is there a way to get the amount of free diskspace of a disk or a folder in a CMD
without having to install some thirdparty applications?
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Check free disk space for current partition in bash
...report all file systems, but I was wondering if there was a way to get the free space just for the partition that the target directory is on.
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