Mac Developer Library Developer


This manual page is part of Xcode Tools version 5.0

To obtain these tools:

If you are running a version of Xcode Tools other than 5.0, view the documentation locally:

  • In Xcode

  • In Terminal, using the man(1) command

Reading manual pages

Manual pages are intended as a quick reference for people who already understand a technology.

  • To learn how the manual is organized or to learn about command syntax, read the manual page for manpages(5).

  • For more information about this technology, look for other documentation in the Apple Developer Library.

  • For general information about writing shell scripts, read Shell Scripting Primer.

MALLOC_SIZE(3)           BSD Library Functions Manual           MALLOC_SIZE(3)

     malloc_good_size, malloc_size -- memory allocation information

     #include <malloc/malloc.h>

     malloc_good_size(size_t size);

     malloc_size(const void *ptr);

     The malloc_size() function returns the size of the memory block that backs the allocation pointed to by
     ptr.  The memory block size is always at least as large as the allocation it backs, and may be larger.

     The malloc_good_size() function rounds size up to a value that the allocator implementation can allo-cate allocate
     cate without adding any padding; it then returns that rounded-up value.


BSD                              May 23, 2006                              BSD

Reporting Problems

The way to report a problem with this manual page depends on the type of problem:

Content errors
Report errors in the content of this documentation with the feedback links below.
Bug reports
Report bugs in the functionality of the described tool or API through Bug Reporter.
Formatting problems
Report formatting mistakes in the online version of these pages with the feedback links below.