 

Category: functors   Component type: type 
Description
Multiplies<T>
[1] is a functors. Specifically, it is an AdaptableBinaryFunction. If f
is an object of class multiplies<T>
and x
and y
are objects of class T
, then f(x,y)
returns x*y
.
Example
Each element in V3
will be the product of the corresponding elements in V1
and V2
const int N = 1000;
Vector<double> V1(N);
Vector<double> V2(N);
Vector<double> V3(N);
iota(V1.begin(), V1.end(), 1);
fill(V2.begin(), V2.end(), 75);
assert(V2.size() >= V1.size() && V3.size() >= V1.size());
transform(V1.begin(), V1.end(), V2.begin(), V3.begin(),
multiplies<double>());
Definition
Defined in the standard header functional, and in the nonstandard backwardcompatibility header function.h.
Template parameters
Parameter  Description  Default 
T  The function object's argument type and result type.  
Model of
AdaptableBinaryFunction, DefaultConstructible
Type requirements
T
must be a numeric type; if x
and y
are objects of type T
, then x*y
must be defined and must have a return type that is convertible to T
. T
must be Assignable.
Public base classes
binary_function<T, T, T>
Members
New members
All of multiplies
's members are defined in the AdaptableBinaryFunction and DefaultConstructible requirements. Multiplies
does not introduce any new members.
Notes
[1] Warning: the name of this function object has been changed from times
to multiplies
. The name was changed for two reasons. First, it is called multiplies
in the C++ standard. Second, the name times
conflicts with a function in the Unix header <sys/times.h>
.
See also
The functors overview, AdaptableBinaryFunction, binary_function
, plus
, minus
, divides
, modulus
, negate