should be it

external/duckdb/extension/tpcds/dsdgen/include/dsdgen-c/decimal.h

@@ -0,0 +1,70 @@
+/*
+ * Legal Notice
+ *
+ * This document and associated source code (the "Work") is a part of a
+ * benchmark specification maintained by the TPC.
+ *
+ * The TPC reserves all right, title, and interest to the Work as provided
+ * under U.S. and international laws, including without limitation all patent
+ * and trademark rights therein.
+ *
+ * No Warranty
+ *
+ * 1.1 TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THE INFORMATION
+ *     CONTAINED HEREIN IS PROVIDED "AS IS" AND WITH ALL FAULTS, AND THE
+ *     AUTHORS AND DEVELOPERS OF THE WORK HEREBY DISCLAIM ALL OTHER
+ *     WARRANTIES AND CONDITIONS, EITHER EXPRESS, IMPLIED OR STATUTORY,
+ *     INCLUDING, BUT NOT LIMITED TO, ANY (IF ANY) IMPLIED WARRANTIES,
+ *     DUTIES OR CONDITIONS OF MERCHANTABILITY, OF FITNESS FOR A PARTICULAR
+ *     PURPOSE, OF ACCURACY OR COMPLETENESS OF RESPONSES, OF RESULTS, OF
+ *     WORKMANLIKE EFFORT, OF LACK OF VIRUSES, AND OF LACK OF NEGLIGENCE.
+ *     ALSO, THERE IS NO WARRANTY OR CONDITION OF TITLE, QUIET ENJOYMENT,
+ *     QUIET POSSESSION, CORRESPONDENCE TO DESCRIPTION OR NON-INFRINGEMENT
+ *     WITH REGARD TO THE WORK.
+ * 1.2 IN NO EVENT WILL ANY AUTHOR OR DEVELOPER OF THE WORK BE LIABLE TO
+ *     ANY OTHER PARTY FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO THE
+ *     COST OF PROCURING SUBSTITUTE GOODS OR SERVICES, LOST PROFITS, LOSS
+ *     OF USE, LOSS OF DATA, OR ANY INCIDENTAL, CONSEQUENTIAL, DIRECT,
+ *     INDIRECT, OR SPECIAL DAMAGES WHETHER UNDER CONTRACT, TORT, WARRANTY,
+ *     OR OTHERWISE, ARISING IN ANY WAY OUT OF THIS OR ANY OTHER AGREEMENT
+ *     RELATING TO THE WORK, WHETHER OR NOT SUCH AUTHOR OR DEVELOPER HAD
+ *     ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.
+ *
+ * Contributors:
+ * Gradient Systems
+ */
+#ifndef R_DECIMAL_H
+#define R_DECIMAL_H
+#include "config.h"
+#include "porting.h"
+#include "mathops.h"
+#include <stdio.h>
+
+/*
+ * a precise decimal data type, using scaled integer
+ * arithmetic.
+ */
+typedef struct DECIMAL_T {
+	int flags;
+	int precision;
+	int scale;
+	ds_key_t number;
+} decimal_t;
+
+#define FL_INIT 0x0004
+
+decimal_t *mk_decimal(int s, int p);
+
+int itodec(decimal_t *dest, int i);
+int ftodec(decimal_t *d, double f);
+int strtodec(decimal_t *d, char *src);
+
+int dectostr(char *dest, decimal_t *d);
+int dectof(double *dest, decimal_t *);
+#define dectoi(d) atoi(d->number)
+
+int decimal_t_op(decimal_t *dest, int o, decimal_t *d1, decimal_t *d2);
+void print_decimal(int nColumn, decimal_t *d, int s);
+void set_precision(decimal_t *d, int sie, int precision);
+#define NegateDecimal(d) (d)->number *= -1
+#endif /* R_DECIMAL_H */