9.28. ATOMIC_FETCH_ADD

9.28 ATOMIC_FETCH_ADD — Atomic ADD operation with prior fetch

Description:
ATOMIC_FETCH_ADD(ATOM, VALUE, OLD) atomically stores the value of ATOM in OLD and adds the value of VAR to the variable ATOM. When STAT is present and the invokation was successful, it is assigned the value 0. If it is present and the invokation has failed, it is assigned a positive value; in particular, for a coindexed ATOM, if the remote image has stopped, it is assigned the value of ISO_FORTRAN_ENV's STAT_STOPPED_IMAGE and if the remote image has failed, the value STAT_FAILED_IMAGE.
Standard:
TS 18508 or later
Class:
Atomic subroutine
Syntax:
CALL ATOMIC_FETCH_ADD (ATOM, VALUE, old [, STAT])
Arguments:
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