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NAME
     ck_pr_neg_ptr, ck_pr_neg_ptr_zero, ck_pr_neg_double, ck_pr_neg_double_zero,
     ck_pr_neg_char,  ck_pr_neg_char_zero,  ck_pr_neg_uint, ck_pr_neg_uint_zero,
     ck_pr_neg_int,   ck_pr_neg_int_zero,    ck_pr_neg_64,    ck_pr_neg_64_zero,
     ck_pr_neg_32,     ck_pr_neg_32_zero,    ck_pr_neg_16,    ck_pr_neg_16_zero,
     ck_pr_neg_8, ck_pr_neg_8_zero -- atomic negation operations

LIBRARY
     Concurrency Kit (libck, -lck)

SYNOPSIS
     #include <ck_pr.h>

     void
     ck_pr_neg_ptr(void *target);

     void
     ck_pr_neg_ptr_zero(void *target, bool *z);

     void
     ck_pr_neg_double(double *target);

     void
     ck_pr_neg_double_zero(double *target, bool *z);

     void
     ck_pr_neg_char(char *target);

     void
     ck_pr_neg_char_zero(char *target, bool *z);

     void
     ck_pr_neg_uint(unsigned int *target);

     void
     ck_pr_neg_uint_zero(unsigned int *target, bool *z);

     void
     ck_pr_neg_int(int *target);

     void
     ck_pr_neg_int_zero(int *target, bool *z);

     void
     ck_pr_neg_64(uint64_t *target);

     void
     ck_pr_neg_64_zero(uint64_t *target, bool *z);

     void
     ck_pr_neg_32(uint32_t *target);

     void
     ck_pr_neg_32_zero(uint32_t *target, bool *z);

     void
     ck_pr_neg_16(uint16_t *target);

     void
     ck_pr_neg_16_zero(uint16_t *target, bool *z);

     void
     ck_pr_neg_8(uint8_t *target);

     void
     ck_pr_neg_8_zero(uint8_t *target, bool *z);

DESCRIPTION
     The ck_pr_neg(3) family of functions atomically negate the value pointed to
     by target.

RETURN VALUES
     The ck_pr_neg_zero functions set the value pointed to by z if the result of
     the negation operation was 0. They set the pointed to value to false other-
     wise.

SEE ALSO
     ck_pr_fence_load(3),   ck_pr_fence_load_depends(3),   ck_pr_fence_store(3),
     ck_pr_fence_memory(3),    ck_pr_load(3),	 ck_pr_store(3),   ck_pr_fas(3),
     ck_pr_faa(3),  ck_pr_inc(3),  ck_pr_dec(3),   ck_pr_not(3),   ck_pr_add(3),
     ck_pr_sub(3),   ck_pr_and(3),   ck_pr_or(3),   ck_pr_xor(3),  ck_pr_cas(3),
     ck_pr_btc(3), ck_pr_bts(3), ck_pr_btr(3)

     Additional information available at http://concurrencykit.org/

				  April 7, 2013 		    ck_pr_neg(3)

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<https://man.freebsd.org/cgi/man.cgi?query=ck_pr_neg&sektion=3&manpath=FreeBSD+Ports+15.1.quarterly>

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