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1 files changed, 39 insertions, 0 deletions

diff --git a/pkg/utilities/nttools/tproject/nextuniq.x b/pkg/utilities/nttools/tproject/nextuniq.x
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+include <tbset.h>
+
+# NEXTUNIQ -- Retrieve the next unique row from a table
+
+procedure nextuniq (tp, numptr, colptr, irow)
+
+pointer tp              # i: Table descriptor
+int     numptr          # i: Number of column pointers
+pointer colptr[ARB]     # i: Array of column pointers
+int     irow		# u: Current unique row
+#--
+bool	fold
+int	jrow, krow, nrow
+
+data	fold  / false /
+
+int	tbpsta(), tbrcmp()
+
+begin
+	# Get number of rows in table
+
+	nrow = tbpsta (tp, TBL_NROWS)
+
+	# Loop until a row that does not match the preceding rows is found
+
+	for (jrow = irow+1; jrow <= nrow; jrow = jrow + 1) {
+	    for (krow = 1; krow < jrow; krow = krow + 1) {
+		if (tbrcmp (tp, numptr, colptr, fold, jrow, krow) == 0)
+		    break
+	    }
+
+	    if (krow == jrow)
+		break
+	}
+
+	# Set irow to the first row that does not match any preceding row
+
+	irow = jrow
+end