1 files changed, 75 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/string/memchr.cpp b/src/VBox/Runtime/common/string/memchr.cpp
new file mode 100644
index 00000000..e70cf1b2
--- /dev/null
+++ b/src/VBox/Runtime/common/string/memchr.cpp
@@ -0,0 +1,75 @@
+/* $Id: memchr.cpp $ */
+/** @file
+ * IPRT - CRT Strings, memcpy().
+ */
+
+/*
+ * Copyright (C) 2006-2022 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#include "internal/iprt.h"
+#include <iprt/string.h>
+
+
+/**
+ * Search a memory block for a character.
+ *
+ * @returns Pointer to the first instance of ch in pv.
+ * @returns NULL if ch wasn't found.
+ * @param   pv          Pointer to the block to search.
+ * @param   ch          The character to search for.
+ * @param   cb          The size of the block.
+ */
+#ifdef IPRT_NO_CRT
+# undef memchr
+void *RT_NOCRT(memchr)(const void *pv, int ch, size_t cb)
+#elif RT_MSC_PREREQ(RT_MSC_VER_VS2005)
+_CRTIMP __checkReturn _CONST_RETURN void * __cdecl
+memchr(__in_bcount_opt(_MaxCount) const void *pv, __in int ch, __in size_t cb)
+#else
+void *memchr(const void *pv, int ch, size_t cb)
+#endif
+{
+    uint8_t const *pu8 = (uint8_t const *)pv;
+    size_t cb2 = cb;
+    while (cb2-- > 0)
+    {
+        if (*pu8 == ch)
+            return (void *)pu8;
+        pu8++;
+    }
+    return NULL;
+}
+RT_ALIAS_AND_EXPORT_NOCRT_SYMBOL(memchr);
+