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16.9. Dynamic Memory Management

Many programs, including those that work with dynamic data structures for example, depend on the ability to allocate and release blocks of memory at runtime. C programs can do that by means of the four dynamic memory management functions declared in the header stdlib.h, which are listed in Table 16-22. The use of these functions is described in detail in Chapter 12.

Table 16-22. Dynamic memory management functions



Allocate a block of memory

malloc( )

Allocate a memory block and fill it with null bytes

calloc( )

Resize an allocated memory block

realloc( )

Release a memory block

free( )

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