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1 /**
2  * Copyright (c) 2022 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *   http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #include <math.h>
17 #include <stdlib.h>
18 #include "functionalext.h"
19 
20 const int TWO = 2;
21 const int THRITYONE = 31;
22 
23 /**
24  * @tc.name      : lcong48_0100
25  * @tc.desc      : Verify lcong48 process success. Set random number seed for 48 bit operation.
26  * @tc.level     : Level 0
27  */
lcong48_0100(void)28 void lcong48_0100(void)
29 {
30     unsigned short p[7] = {0x0102, 0x0304, 0x0506, 0x0708, 0x090a, 0x0b0c, 0x0d0e};
31     lcong48(p);
32     long ret = mrand48();
33     EXPECT_TRUE("lcong48_0100", ret < pow(TWO, THRITYONE) && ret > -pow(TWO, THRITYONE));
34 }
35 
main(void)36 int main(void)
37 {
38     lcong48_0100();
39     return t_status;
40 }