mindspore/third_party/securec/src/swprintf_s.c

/**
 * Copyright 2020 Huawei Technologies Co., Ltd
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "securec.h"

/*
 * <FUNCTION DESCRIPTION>
 *   The  swprintf_s  function  is  the  wide-character  equivalent  of the sprintf_s function
 *
 * <INPUT PARAMETERS>
 *    strDest                   Storage location for the output.
 *    destMax                  Maximum number of characters to store.
 *    format                    Format-control string.
 *    ...                        Optional arguments
 *
 * <OUTPUT PARAMETERS>
 *    strDest                    is updated
 *
 * <RETURN VALUE>
 *    return  the number of wide characters stored in strDest, not  counting the terminating null wide character.
 *    return -1  if an error occurred.
 *
 * If there is a runtime-constraint violation, strDest[0] will be set to the '\0' when strDest and destMax valid
 */
int swprintf_s(wchar_t *strDest, size_t destMax, const wchar_t *format, ...)
{
    int ret;                    /* If initialization causes  e838 */
    va_list argList;

    va_start(argList, format);
    ret = vswprintf_s(strDest, destMax, format, argList);
    va_end(argList);
    (void)argList;              /* to clear e438 last value assigned not used , the compiler will optimize this code */

    return ret;
}