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test_and_clear_bit(9) - phpMan TEST_AND_CLEAR_BIT(9) Basic C Library Functions TEST_AND_CLEAR_BIT(9) NAME test_and_clear_bit - Clear a bit and return its old value SYNOPSIS bool test_and_clear_bit(long nr, volatile unsigned long * addr); ARGUMENTS nr Bit to clear addr Address to count from DESCRIPTION This operation is atomic and cannot be reordered. It also implies a memory barrier. COPYRIGHT Kernel Hackers Manual 4.8. January 2017 TEST_AND_CLEAR_BIT(9) |