Exemplos de ObExprObj::set_decimal em C++ (Cpp)

Exemplo n.º 1

Arquivo: ob_obj_cast_test.cpp Projeto: sharpglasses/oceanbase

TEST_F(ObObjCastTest, decimal_to_xxx)
{
    ObExprObj in;
    const char * cases_str[] = {"0", "123.456", "-789.012"};
    ObNumber cases[ARRAYSIZEOF(cases_str)];
    int64_t int_expected[ARRAYSIZEOF(cases)] = {0, 123, -789};
    float float_expected[ARRAYSIZEOF(cases)] = {0.0f, 123.456f, -789.012f};
    double double_expected[ARRAYSIZEOF(cases)] = {0.0, 123.456, -789.012};
    for (int64_t i = 0; i < static_cast<int64_t>(ARRAYSIZEOF(cases)); ++i)
    {
        //printf("case %ld: %s\n", i, cases_str[i]);
        cases[i].from(cases_str[i]);
        in.set_decimal(cases[i]);
        int64_t v = int_expected[i];

        MY_EXPECT(ObDecimalType, in, ObNullType, v, cases_str[i]);
        MY_EXPECT(ObDecimalType, in, ObIntType, v, cases_str[i]);
        MY_EXPECT(ObDecimalType, in, ObFloatType, float_expected[i], cases_str[i]);
        MY_EXPECT(ObDecimalType, in, ObDoubleType, double_expected[i], cases_str[i]);
        MY_EXPECT(ObDecimalType, in, ObDateTimeType, v, cases_str[i]);
        MY_EXPECT(ObDecimalType, in, ObPreciseDateTimeType, v, cases_str[i]);
        MY_EXPECT(ObDecimalType, in, ObVarcharType, v, cases_str[i]);
        MY_EXPECT(ObDecimalType, in, ObSeqType, v, cases_str[i]);
        MY_EXPECT(ObDecimalType, in, ObCreateTimeType, v, cases_str[i]);
        MY_EXPECT(ObDecimalType, in, ObModifyTimeType, v, cases_str[i]);
        MY_EXPECT(ObDecimalType, in, ObExtendType, v, cases_str[i]);
        MY_EXPECT(ObDecimalType, in, ObBoolType, v, cases_str[i]);
        MY_EXPECT(ObDecimalType, in, ObDecimalType, v, cases_str[i]);
    }
}

Exemplo n.º 2

Arquivo: ob_obj_cast.cpp Projeto: b-xiang/sql_parser-1

 static int mtime_decimal(const ObObjCastParams &params, const ObExprObj &in, ObExprObj &out)
 {
     UNUSED(params);
     OB_ASSERT(in.get_type() == ObModifyTimeType);
     ObNumber num;
     num.from(static_cast<int64_t> (in.get_mtime()));
     out.set_decimal(num);
     return OB_SUCCESS;
 }

Exemplo n.º 3

Arquivo: ob_obj_cast.cpp Projeto: b-xiang/sql_parser-1

 static int int_decimal(const ObObjCastParams &params, const ObExprObj &in, ObExprObj &out)
 {
     UNUSED(params);
     OB_ASSERT(in.get_type() == ObIntType);
     ObNumber num;
     num.from(in.get_int());
     out.set_decimal(num); // @todo optimize
     return OB_SUCCESS;
 }

Exemplo n.º 4

Arquivo: ob_obj_cast.cpp Projeto: b-xiang/sql_parser-1

 static int varchar_decimal(const ObObjCastParams &params, const ObExprObj &in, ObExprObj &out)
 {
     int ret = OB_SUCCESS;
     UNUSED(params);
     OB_ASSERT(in.get_type() == ObVarcharType);
     const string &varchar = in.get_varchar();
     ObNumber num;
     if (OB_SUCCESS != (ret = num.from(varchar.data(), varchar.length())))
     {
         jlog(WARNING, "failed to convert varchar to decimal, err=%d varchar=%.*s",
                 ret, varchar.length(), varchar.data());
     }
     else
     {
         out.set_decimal(num); // @todo optimize
     }
     return OB_SUCCESS;
 }

Exemplo n.º 5

Arquivo: ob_obj_cast.cpp Projeto: b-xiang/sql_parser-1

 static int double_decimal(const ObObjCastParams &params, const ObExprObj &in, ObExprObj &out)
 {
     int ret = OB_SUCCESS;
     UNUSED(params);
     OB_ASSERT(in.get_type() == ObDoubleType);
     static const int64_t MAX_DOUBLE_PRINT_SIZE = 64;
     char buf[MAX_DOUBLE_PRINT_SIZE];
     snprintf(buf, MAX_DOUBLE_PRINT_SIZE, "%f", in.get_double());
     ObNumber num;
     if (OB_SUCCESS != (ret = num.from(buf)))
     {
         jlog(WARNING, "failed to convert float to decimal, err=%d", ret);
     }
     else
     {
         out.set_decimal(num);
     }
     return ret;
 }