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40 lines
1.1 KiB
C
40 lines
1.1 KiB
C
/* Copyright 2009, UCAR/Unidata and OPeNDAP, Inc.
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See the COPYRIGHT file for more information. */
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#ifndef CONSTRAINTS_H
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#define CONSTRAINTS_H 1
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/*! Specifies an OCslice. */
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typedef struct OCslice {
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size_t first;
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size_t count;
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size_t stride;
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size_t stop; /* == first + count */
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size_t declsize; /* from defining dimension, if any.*/
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} OCslice;
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/*! Specifies a form of path where each element can have a set of associated indices */
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typedef struct OCpath {
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OClist* names;
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OClist* indexsets; /* oclist<oclist<Slice>> */
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} OCpath;
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/*! Specifies a ProjectionClause. */
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typedef struct OCprojectionclause {
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char* target; /* "variable name" as mentioned in the projection */
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OClist* indexsets; /* oclist<oclist<OCslice>> */
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struct OCnode* node; /* node with name matching target, if any. */
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int gridconstraint; /* used only for testing purposes */
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} OCprojectionclause;
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/*! Selection is the node type for selection expression trees */
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typedef struct OCselectionclause {
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int op;
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char* value;
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struct OCselectionclause* lhs;
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OClist* rhs;
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} OCselectionclause;
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#endif /*CONSTRAINTS_H*/
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