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 otherwise.

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)