The Linux Kernel API
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atomic_dec_and_test

Name

atomic_dec_and_test -- decrement and test

Synopsis

int atomic_dec_and_test (atomic_t * v);

Arguments

v: pointer of type atomic_t

Description

Atomically decrements v by 1 and returns true if the result is 0, or false for all other cases. Note that the guaranteed useful range of an atomic_t is only 24 bits.

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