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NumericType¶
View page sourceDefinition of a Numeric Type¶
Type Requirements¶
A NumericType is any type
that satisfies the requirements below.
The following is a list of some numeric types:
int , float , double ,
AD<double> , AD< AD<double> > .
The routine CheckNumericType can be used to check
that a type satisfies these conditions.
Default Constructor¶
The syntax
NumericType x ;
creates a NumericType object with an unspecified value.
Constructor From Integer¶
If i is an int ,
the syntax
NumericType x ( i );
creates a NumericType object with a value
equal to i where i can be const .
Copy Constructor¶
If x is a NumericType object the syntax
NumericType y ( x );
creates a NumericType object y
with the same value as x
where x can be const .
Assignment¶
If x and y are NumericType objects, the syntax
x = y
sets the value of x equal to the value of y
where y can be const .
The expression corresponding to this operation is unspecified; i.e.,
it could be void and hence
x = y = z
may not be legal.
Operators¶
Suppose x , y and z are
NumericType objects where
x and y may be const .
In the result type column,
NumericType can be replaced by any type that can
be used just like a NumericType object.
Operation |
Description |
Result Type |
|---|---|---|
+ x |
unary plus |
NumericType |
- x |
unary minus |
NumericType |
x + y |
binary addition |
NumericType |
x - y |
binary subtraction |
NumericType |
x * y |
binary multiplication |
NumericType |
x / y |
compound assignment division |
NumericType |
z += y |
compound assignment addition |
NumericType |
z -= y |
compound assignment subtraction |
NumericType |
z *= y |
compound assignment multiplication |
NumericType |
z /= y |
compound assignment division |
NumericType |
Example¶
The file numeric_type.cpp contains an example and test of using numeric types. (It is easy to modify to test additional numeric types.)
Exercise¶
List three operators that are not supported by every numeric type but that are supported by the numeric types
int,float,double.Which of the following are numeric types:
std::complex<double>,std::valarray<double>,std::vector<double>?