本文整理汇总了C++中ObExprObj::get_decimal方法的典型用法代码示例。如果您正苦于以下问题：C++ ObExprObj::get_decimal方法的具体用法？C++ ObExprObj::get_decimal怎么用？C++ ObExprObj::get_decimal使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ObExprObj的用法示例。
在下文中一共展示了ObExprObj::get_decimal方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: decimal_bool
static int decimal_bool(const ObObjCastParams ¶ms, const ObExprObj &in, ObExprObj &out)
{
UNUSED(params);
OB_ASSERT(in.get_type() == ObDecimalType);
out.set_bool(!in.get_decimal().is_zero());
return OB_SUCCESS;
}示例2: decimal_mtime
static int decimal_mtime(const ObObjCastParams ¶ms, const ObExprObj &in, ObExprObj &out)
{
int ret = OB_SUCCESS;
UNUSED(params);
OB_ASSERT(in.get_type() == ObDecimalType);
int64_t i64 = 0;
if (OB_SUCCESS != (ret = in.get_decimal().cast_to_int64(i64)))
{
jlog(WARNING, "failed to cast to int64, err=%d", ret);
}
else
{
out.set_mtime(static_cast<ObModifyTime> (i64));
}
return ret;
}示例3: decimal_double
static int decimal_double(const ObObjCastParams ¶ms, const ObExprObj &in, ObExprObj &out)
{
UNUSED(params);
OB_ASSERT(in.get_type() == ObDecimalType);
// decimal -> string -> float
char buf[ObNumber::MAX_PRINTABLE_SIZE];
memset(buf, 0, ObNumber::MAX_PRINTABLE_SIZE);
in.get_decimal().to_string(buf, ObNumber::MAX_PRINTABLE_SIZE);
double v = 0.0;
if (1 == sscanf(buf, "%lf", &v))
{
out.set_double(v);
}
else
{
out.set_double(0.0);
}
return OB_SUCCESS;
}示例4: decimal_varchar
static int decimal_varchar(const ObObjCastParams ¶ms, const ObExprObj &in, ObExprObj &out)
{
int ret = OB_SUCCESS;
UNUSED(params);
OB_ASSERT(in.get_type() == ObDecimalType);
string varchar = out.get_varchar();
if (varchar.length() < ObNumber::MAX_PRINTABLE_SIZE)
{
jlog(WARNING, "output buffer for varchar not enough, buf_len=%d", varchar.length());
ret = OB_INVALID_ARGUMENT;
}
else
{
int64_t length = in.get_decimal().to_string((char*) varchar.data(), varchar.length());
string varchar2(varchar);
out.set_varchar(varchar2);
}
return ret;
}示例5:
BLOCK_FUNC()
{
ObExprObj t1;
ObExprObj t2;
ObExprObj res;
int64_t i1 = 0;
int64_t i2 = 0;
const int64_t buf_len = ObNumber::MAX_PRINTABLE_SIZE;
char res_buf[buf_len];
int err = OB_SUCCESS;
// int add int
t1.set_int(1);
t2.set_int(2);
EXPECT_EQ(OB_SUCCESS, t1.add(t2, res));
ASSERT_EQ(OB_SUCCESS, res.get_int(i2));
ASSERT_EQ(3, i2);
// int add dec
t1.set_int(1);
t2.set_decimal("2.2");
EXPECT_EQ(OB_SUCCESS, t1.add(t2, res));
ASSERT_EQ(OB_SUCCESS, res.get_decimal(res_buf, buf_len));
ASSERT_STREQ("3.2", res_buf);
// dec add dec
t1.set_decimal("10");
t2.set_decimal("2.2");
EXPECT_EQ(OB_SUCCESS, t1.add(t2, res));
ASSERT_EQ(OB_SUCCESS, res.get_decimal(res_buf, buf_len));
ASSERT_STREQ("12.2", res_buf);
// int sub int
t1.set_int(4);
t2.set_int(2);
EXPECT_EQ(OB_SUCCESS, t1.sub(t2, res));
ASSERT_EQ(OB_SUCCESS, res.get_int(i2));
ASSERT_EQ(2, i2);
// int sub dec
t1.set_int(4);
t2.set_decimal("3.0");
EXPECT_EQ(OB_SUCCESS, t1.sub(t2, res));
EXPECT_EQ(OB_SUCCESS, t1.sub(t2, res));
ASSERT_EQ(OB_SUCCESS, res.get_decimal(res_buf, buf_len));
ASSERT_STREQ("1.0", res_buf);
// dec sub dec
t1.set_decimal("4");
t2.set_decimal("2.0");
EXPECT_EQ(OB_SUCCESS, t1.sub(t2, res));
ASSERT_EQ(OB_SUCCESS, res.get_decimal(res_buf, buf_len));
ASSERT_STREQ("2.0", res_buf);
// int mul int
t1.set_int(4);
t2.set_int(2);
EXPECT_EQ(OB_SUCCESS, t1.mul(t2, res));
ASSERT_EQ(OB_SUCCESS, res.get_int(i2));
ASSERT_EQ(8, i2);
// int mul dec
t1.set_int(4);
t2.set_decimal("2.0");
EXPECT_EQ(OB_SUCCESS, t1.mul(t2, res));
ASSERT_EQ(OB_SUCCESS, res.get_decimal(res_buf, buf_len));
ASSERT_STREQ("8.0", res_buf);
// dec mul dec
t1.set_decimal("4");
t2.set_decimal("2.0");
EXPECT_EQ(OB_SUCCESS, t1.mul(t2, res));
ASSERT_EQ(OB_SUCCESS, res.get_decimal(res_buf, buf_len));
ASSERT_STREQ("8.0", res_buf);
// int div int
t1.set_int(6);
t2.set_int(2);
EXPECT_EQ(OB_SUCCESS, t1.div(t2, res, false));
ASSERT_EQ(OB_SUCCESS, res.get_decimal(res_buf, buf_len));
ASSERT_STREQ("3.00000000000000000000000000000000000000", res_buf);
EXPECT_EQ(OB_SUCCESS, t1.div(t2, res, true));
double d = 0.0;
ASSERT_EQ(OB_SUCCESS, res.get_double(d));
ASSERT_EQ(3.0, d);
// int div dec
t1.set_int(6);
t2.set_decimal("2.0");
EXPECT_EQ(OB_SUCCESS, t1.div(t2, res, false));
ASSERT_EQ(OB_SUCCESS, res.get_decimal(res_buf, buf_len));
ASSERT_STREQ("3.00000000000000000000000000000000000000", res_buf);
// dec div dec
t1.set_decimal("6");
t2.set_decimal("2.0");
EXPECT_EQ(OB_SUCCESS, t1.div(t2, res, false));
ASSERT_EQ(OB_SUCCESS, res.get_decimal(res_buf, buf_len));
ASSERT_STREQ("3.00000000000000000000000000000000000000", res_buf);
t1.set_int(5);
t2.set_int(0);
EXPECT_TRUE(OB_SUCCESS != t1.div(t2, res, false));
EXPECT_TRUE(true == res.is_null());
t1.set_decimal("5.0");
t2.set_int(0);
EXPECT_TRUE(OB_SUCCESS != t1.div(t2, res, false));
//.........这里部分代码省略.........