atomic_sub

Atomically subtracts a 32-bit value from the 32-bit value in the specified memory location.

Library:LibC

Classification:Other

Service:General C Services

Syntax

  #include <stdlib.h> 
   
  void   atomic_sub (
     unsigned long   *addr,
     unsigned long    value);

Parameters

addr: (IN) Points to the memory location for the operation.
value: (IN) Specifies the value to subtract.

Remarks

The memory location address is expected to be valid. If an invalid address is passed, the server will abend.

See Also