should be it

external/duckdb/extension/tpcds/dsdgen/dsdgen-c/StringBuffer.cpp

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+/*
+ * 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
+ */
+#include "config.h"
+#include "porting.h"
+#include <stdio.h>
+#include <assert.h>
+#ifndef USE_STDLIB_H
+#include <malloc.h>
+#endif
+#include "StringBuffer.h"
+
+/*
+ * Routine: InitBuffer
+ * Purpose:
+ * Algorithm:
+ * Data Structures:
+ *
+ * Params:
+ * Returns:
+ * Called By:
+ * Calls:
+ * Assumptions:
+ * Side Effects:
+ * TODO: None
+ */
+StringBuffer_t *InitBuffer(int nSize, int nIncrement) {
+	StringBuffer_t *pBuf;
+
+	pBuf = (StringBuffer_t *)malloc(sizeof(struct STRING_BUFFER_T));
+	MALLOC_CHECK(pBuf);
+	if (pBuf == NULL)
+		return (NULL);
+	memset((void *)pBuf, 0, sizeof(struct STRING_BUFFER_T));
+
+	pBuf->pText = (char *)malloc(sizeof(char) * nSize);
+	MALLOC_CHECK(pBuf->pText);
+	if (pBuf->pText == NULL)
+		return (NULL);
+	memset((void *)pBuf->pText, 0, sizeof(char) * nSize);
+
+	pBuf->nIncrement = nIncrement;
+	pBuf->nBytesAllocated = nSize;
+	pBuf->nFlags = SB_INIT;
+
+	return (pBuf);
+}
+
+/*
+ * Routine: AddBuffer
+ * Purpose:
+ * Algorithm:
+ * Data Structures:
+ *
+ * Params:
+ * Returns:
+ * Called By:
+ * Calls:
+ * Assumptions:
+ * Side Effects:
+ * TODO: None
+ */
+int AddBuffer(StringBuffer_t *pBuf, char *pStr) {
+	int nRemaining = pBuf->nBytesAllocated - pBuf->nBytesUsed, nRequested = strlen(pStr);
+
+	if (!nRequested)
+		return (0);
+
+	while (nRequested >= nRemaining) {
+		pBuf->pText = (char *)realloc((void *)pBuf->pText, pBuf->nBytesAllocated + pBuf->nIncrement);
+		if (!pBuf->pText)
+			return (-1);
+		pBuf->nBytesAllocated += pBuf->nIncrement;
+		nRemaining += pBuf->nIncrement;
+	}
+
+	strcat(pBuf->pText, pStr);
+	if (pBuf->nBytesUsed == 0) /* first string adds a terminator */
+		pBuf->nBytesUsed = 1;
+	pBuf->nBytesUsed += nRequested;
+
+	return (0);
+}
+
+/*
+ * Routine: ResetStringBuffer
+ * Purpose:
+ * Algorithm:
+ * Data Structures:
+ *
+ * Params:
+ * Returns:
+ * Called By:
+ * Calls:
+ * Assumptions:
+ * Side Effects:
+ * TODO: None
+ */
+int ResetBuffer(StringBuffer_t *pBuf) {
+	pBuf->nBytesUsed = 0;
+	if (pBuf->nBytesAllocated)
+		pBuf->pText[0] = '\0';
+
+	return (0);
+}
+
+/*
+ * Routine: GetBuffer
+ * Purpose:
+ * Algorithm:
+ * Data Structures:
+ *
+ * Params:
+ * Returns:
+ * Called By:
+ * Calls:
+ * Assumptions:
+ * Side Effects:
+ * TODO: None
+ */
+char *GetBuffer(StringBuffer_t *pBuf) {
+	return (pBuf->pText);
+}
+
+/*
+ * Routine: FreeBuffer
+ * Purpose:
+ * Algorithm:
+ * Data Structures:
+ *
+ * Params:
+ * Returns:
+ * Called By:
+ * Calls:
+ * Assumptions:
+ * Side Effects:
+ * TODO: None
+ */
+void FreeBuffer(StringBuffer_t *pBuf) {
+	if (!pBuf)
+		return;
+	if (pBuf->pText)
+		free((void *)pBuf->pText);
+	free((void *)pBuf);
+
+	return;
+}