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Add Iter_IsEmpty #389

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Merged
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Oct 12, 2019
Merged

Add Iter_IsEmpty #389

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14 changes: 14 additions & 0 deletions YSI_Data/y_foreach/macros.inc
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Original file line number Diff line number Diff line change
Expand Up @@ -413,6 +413,20 @@ P:D(Iter_Clear(Iterator:iter<>));
#define Iter_Clear_InternalB(%0,%2,%1) Iter_Clear_InternalD(_:%1,F@s(%1),F@s(%0),F@s(%1)-F@s(%0),%0,%2)
#define Iter_Clear_InternalD(%0,%1,%2,%3,%4,) Iter_Clear_InternalC(%0,%1,%2,%3-1,%4)

/*-------------------------------------------------------------------------*//**
* <param name="iter">Name of the iterator to test emptiness of.</param>
* <remarks>
*
* native Iter_IsEmpty(Iterator:Name&lt;&gt;);
*
* </remarks>
*//*------------------------------------------------------------------------**/

P:D(Iter_IsEmpty(Iterator:iter<>));
#define Iter_IsEmpty _ITER<IsEmpty>
#define Iter_IsEmpty_InternalA(%0,%1) ((%0) == 0)
#define Iter_IsEmpty_InternalB(%0,%2,%1) ((%0[%2]) == 0)

/*-------------------------------------------------------------------------*//**
* <param name="iter">Name of the iterator to get the first free slot in.</param>
* <remarks>
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