| C.A.R. HOARE, CommuicatigSequetialProcesses, Comm. ACM vol. 21 no. 8, pp. 666-678 (978). |
....we shall give a first class semantic status to trap exit statements, instead of explaining them loosely as control flow diverters. All other statements are common in imperative languages. Notice that the parallel statement can be used at any level; there is no static notion of process as in CSP [29]. In compound statements, the sequencing operator ; has priority over the parallel operator ] When necessary, statements can be grouped by bracketing them with square brackets, as in [stat ] star2] star3 . All variables, signals, or trap labels must be declared before they are used. ....
C.A.R. HOARE, CommuicatigSequetialProcesses, Comm. ACM vol. 21 no. 8, pp. 666-678 (978).
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