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ck_pr_fas(3)             BSD Library Functions Manual             ck_pr_fas(3)

NAME
     ck_pr_fas_ptr, ck_pr_fas_double, ck_pr_fas_char, ck_pr_fas_uint,
     ck_pr_fas_int, ck_pr_fas_64, ck_pr_fas_32, ck_pr_fas_16, ck_pr_fas_8 --
     atomic swap operations

LIBRARY
     Concurrency Kit (libck, -lck)

SYNOPSIS
     #include <ck_pr.h>

     void *
     ck_pr_fas_ptr(void *target, void *new_value);

     double
     ck_pr_fas_double(double *target, double new_value);

     char
     ck_pr_fas_char(char *target, char new_value);

     unsigned int
     ck_pr_fas_uint(unsigned int *target, unsigned int new_value);

     int
     ck_pr_fas_int(int *target, int new_value);

     uint64_t
     ck_pr_fas_64(uint64_t *target, uint64_t new_value);

     uint32_t
     ck_pr_fas_32(uint32_t *target, uint32_t new_value);

     uint16_t
     ck_pr_fas_16(uint16_t *target, uint16_t new_value);

     uint8_t
     ck_pr_fas_8(uint8_t *target, uint8_t new_value);

DESCRIPTION
     The ck_pr_fas(3) family of functions atomically fetch the value pointed
     to by target and replace the value pointed to by target with the value
     specified by new_value.

RETURN VALUES
     This function returns the value pointed to by target at the time of oper-
     ation invocation before it was atomically replaced with new_value.

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_faa(3),
     ck_pr_inc(3), ck_pr_dec(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