Provided by: libwget0_0.0.20170806-1_amd64 bug

NAME

       libwget-xalloc

SYNOPSIS

   Functions
       void wget_set_oomfunc (void(*oom_callback)(void))
       void * wget_malloc (size_t size)
       void * wget_calloc (size_t nmemb, size_t size)
       void * wget_realloc (void *ptr, size_t size)
       void wget_free (void *ptr)

Detailed Description

       The provided memory allocation functions are used by explicit libwget memory allocations.
       They differ from the standard ones in that they exit the program in an out-of-memory
       situation with EXIT_FAILURE. That means, you don't have to check the returned value
       against NULL.

       You can provide a out-of-memory function that will be called before exit(), e.g. to print
       out a 'No memory' message.

       To work around this behavior, provide your own allocation routines, namely malloc(),
       calloc(), realloc().

Function Documentation

   void wget_set_oomfunc (void(*)(void) oom_callback)
       Parameters:
           oom_callback Pointer to your custom out-of-memory function

       Set a custom out-of-memory function.

   void* wget_malloc (size_t size)
       Parameters:
           size Number of bytes to allocate

       Returns:
           A pointer to the allocated (uninitialized) memory

       Like the standard malloc(), except that it doesn't return NULL values. If an out-of-memory
       condition occurs the oom callback function is called (if set). Thereafter the application
       is terminated by exit(EXIT_FAILURE);

   void* wget_calloc (size_t nmemb, size_t size)
       Parameters:
           nmemb Number of elements (each of size size) to allocate
           size Size of element

       Returns:
           A pointer to the allocated (initialized) memory

       Like the standard calloc(), except that it doesn't return NULL values. If an out-of-memory
       condition occurs the oom callback function is called (if set). Thereafter the application
       is terminated by exit(EXIT_FAILURE);

   void* wget_realloc (void * ptr, size_t size)
       Parameters:
           ptr Pointer to old memory area
           size Number of bytes to allocate for the new memory area

       Returns:
           A pointer to the new memory area

       Like the standard realloc(), except that it doesn't return NULL values. If an out-of-
       memory condition occurs or size is 0, the oom callback function is called (if set).
       Thereafter the application is terminated by exit(EXIT_FAILURE);

   void wget_free (void * ptr)
       Parameters:
           ptr Pointer to memory-pointer to be freed

       This function is like free().

       It is basically needed on systems where the library malloc heap is different from the
       caller's malloc heap, which happens on Windows when the library is a separate DLL.

       To prevent typical use-after-free issues, use the macro wget_xfree().

Author

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