20 lines
543 B
C
20 lines
543 B
C
/* range.h,v 1.1.1.1 1992/07/10 02:41:06 davew Exp */
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#ifndef Already_Included_Range
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#define Already_Included_Range
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typedef struct {
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uint _first;
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uint _length;
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} range;
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#define r_first(r) ((r)->_first)
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#define r_last(r) ((r)->_first + (r)->_length - 1)
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#define r_length(r) ((r)->_length)
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#define r_in(r, i) ((i) >= r_first(r) && (i) <= r_last(r))
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/* #define r_grow(r) (++(r)->_length)
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grow is no longer allowed, as variables after the last region are
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used for iteration number counts */
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#endif
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