NAME

       ck_pr_dec_ptr,   ck_pr_dec_ptr_zero,   ck_pr_dec_ptr_is_zero,   ck_pr_dec_double,  ck_pr_dec_double_zero,
       ck_pr_dec_double_is_zero, ck_pr_dec_char,  ck_pr_dec_char_zero,  ck_pr_dec_char_is_zero,  ck_pr_dec_uint,
       ck_pr_dec_uint_zero,  ck_pr_dec_char_is_zero,  ck_pr_dec_int,  ck_pr_dec_int_zero, ck_pr_dec_int_is_zero,
       ck_pr_dec_64,     ck_pr_dec_64_zero,     ck_pr_dec_64_is_zero,      ck_pr_dec_32,      ck_pr_dec_32_zero,
       ck_pr_dec_32_is_zero,     ck_pr_dec_16,     ck_pr_dec_16_zero,     ck_pr_dec_32_is_zero,     ck_pr_dec_8,
       ck_pr_dec_8_zero, ck_pr_dec_8_is_zero — atomic decrement operations

LIBRARY

       Concurrency Kit (libck, -lck)

SYNOPSIS

       #include <ck_pr.h>

       void
       ck_pr_dec_ptr(void *target);

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

       bool
       ck_pr_dec_ptr_is_zero(void *target);

       void
       ck_pr_dec_double(double *target);

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

       bool
       ck_pr_dec_double_is_zero(double *target);

       void
       ck_pr_dec_char(char *target);

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

       bool
       ck_pr_dec_char_is_zero(char *target);

       void
       ck_pr_dec_uint(unsigned int *target);

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

       bool
       ck_pr_dec_uint_is_zero(unsigned int *target);

       void
       ck_pr_dec_int(int *target);

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

       bool
       ck_pr_dec_int_is_zero(int *target);

       void
       ck_pr_dec_64(uint64_t *target);

       void
       ck_pr_dec_64_zero(uint64_t *target, bool *z);

       bool
       ck_pr_dec_64_is_zero(uint64_t *target);

       void
       ck_pr_dec_32(uint32_t *target);

       void
       ck_pr_dec_32_zero(uint32_t *target, bool *z);

       bool
       ck_pr_dec_32_is_zero(uint32_t *target);

       void
       ck_pr_dec_16(uint16_t *target);

       void
       ck_pr_dec_16_zero(uint16_t *target, bool *z);

       bool
       ck_pr_dec_16_is_zero(uint16_t *target);

       void
       ck_pr_dec_8(uint8_t *target);

       void
       ck_pr_dec_8_zero(uint8_t *target, bool *z);

       bool
       ck_pr_dec_8_is_zero(uint8_t *target);

DESCRIPTION

       The ck_pr_dec(3) family of functions atomically decrement the value pointed to by target.

RETURN VALUES

       The ck_pr_dec_zero family of functions set the value pointed to by  z  to  true  if  the  result  of  the
       decrement  operation was 0. They set the value pointed to by z to false otherwise.  The ck_pr_dec_is_zero
       family of function return true if the result of the decrement operation was 0 and 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_neg(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_dec(3)