更新日志：

• The improvement of Fortran 2003 support.

• The hint clause on critical construct and new hinted lock API routines were added to allow applications to inform the runtime about contention and desirability of speculation.

• The if clause has been extended so that when using combined and composite constructs it is now possible to specify to which construct(s) the if clause applies, and it is possible to specify different if clauses for different constructs from which the combined or composite construct is composed.

• In #pragma omp declare simd directive’s linear clauses it is now possible to specify through val, uval and ref modifiers whether references are linear, or whether the referenced variable values are linear.

• Query functions for thread affinity have been added.

• And in reality, OpenMP 4.5 also contains various other smaller changes, clarifications and bug fixes, too many to list them all, but this is a summary of some of those that are more notable.

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