☜ | $SELECT1990 Version of ANSI Standard | ☞ |
See 2.2.4.2 for the definition of tvexpr. See 2.3 for the definition of expr. See section 1 for the definition of L.
This form returns the value of the leftmost expr whose corresponding tvexpr is true. The process of evaluation consists of evaluating the tvexprs, one at a time in left-to-right order, until the first one is found whose value is true. The expr corresponding to this tvexpr (and no other) is evaluated and this value is made the value of $S. An error will occur if all tvexprs are false. Since only one expr is evaluated at any invocation of $S, that is the only expr which must have a defined value.
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Copyright © Annotations: 2008-2024 Ed de Moel.
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