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.Dd April 7, 2013
.Dt ck_pr_faa 3
.Sh NAME
.Nm ck_pr_faa
.Nd atomic fetch-and-add operation
.Sh LIBRARY
Concurrency Kit (libck, \-lck)
.Sh SYNOPSIS
.In ck_pr.h
.Ft uintptr_t
.Fn ck_pr_faa_ptr "void *target" "uintptr_t delta"
.Ft double
.Fn ck_pr_faa_double "double *target" "double delta"
.Ft char
.Fn ck_pr_faa_char "char *target" "char delta"
.Ft unsigned int
.Fn ck_pr_faa_uint "unsigned int *target" "unsigned int delta"
.Ft int
.Fn ck_pr_faa_int "int *target" "int delta"
.Ft uint64_t
.Fn ck_pr_faa_64 "uint64_t *target" "uint64_t delta"
.Ft uint32_t
.Fn ck_pr_faa_32 "uint32_t *target" "uint32_t delta"
.Ft uint16_t
.Fn ck_pr_faa_16 "uint16_t *target" "uint16_t delta"
.Ft uint8_t
.Fn ck_pr_faa_8 "uint8_t *target" "uint8_t delta"
.Sh DESCRIPTION
The 
.Fn ck_pr_faa 3
family of functions will atomically fetch the value pointed to
by
.Fa target
and add the value specified by
.Fa delta
to the value pointed to by
.Fa target .
.Sh RETURN VALUES
This function will return the value pointed to by
.Fa target
at the time of operation invocation before the
addition operation is applied.
.Sh SEE ALSO
.Xr ck_pr_fence_load 3 ,
.Xr ck_pr_fence_load_depends 3 ,
.Xr ck_pr_fence_store 3 ,
.Xr ck_pr_fence_memory 3 ,
.Xr ck_pr_load 3 ,
.Xr ck_pr_store 3 ,
.Xr ck_pr_fas 3 ,
.Xr ck_pr_inc 3 ,
.Xr ck_pr_dec 3 ,
.Xr ck_pr_neg 3 , 
.Xr ck_pr_not 3 ,
.Xr ck_pr_add 3 ,
.Xr ck_pr_sub 3 ,
.Xr ck_pr_and 3 ,
.Xr ck_pr_or 3 ,
.Xr ck_pr_xor 3 ,
.Xr ck_pr_cas 3 ,
.Xr ck_pr_btc 3 ,
.Xr ck_pr_bts 3 ,
.Xr ck_pr_btr 3
.Pp
Additional information available at http://concurrencykit.org/