std::valarray::operators

std::valarray::operator+=,-=,*=,/=,%=,&=,|=,<<=,>>=

valarray<T> operator+=( const valarray<T>& v );
valarray<T> operator-=( const valarray<T>& v );
valarray<T> operator*=( const valarray<T>& v );
valarray<T> operator/=( const valarray<T>& v );
valarray<T> operator%=( const valarray<T>& v );
valarray<T> operator&=( const valarray<T>& v );
valarray<T> operator|=( const valarray<T>& v );
valarray<T> operator^=( const valarray<T>& v );
valarray<T> operator<<=( const valarray<T>& v );
valarray<T> operator>>=( const valarray<T>& v );

valarray<T> operator+=( const T& val );
valarray<T> operator-=( const T& val );
valarray<T> operator*=( const T& val );
valarray<T> operator/=( const T& val );
valarray<T> operator%=( const T& val );
valarray<T> operator&=( const T& val );
valarray<T> operator|=( const T& val );
valarray<T> operator^=( const T& val );
valarray<T> operator<<=( const T& val );
valarray<T> operator>>=( const T& val );

Applies compound assignment operators to each element in the numeric array.

The behavior is undefined if size() != v.size().

The behavior is undefined if any of the values in v is computed during the assignment and depends on any of the values in *this, that is, the expression on the right side of the assignment refers to a variable in the left side of the assignment.

Parameters

Return value

*this.

Exceptions

(none).

Notes

Each of the operators can only be instantiated if the following requirements are met:

• The indicated operator can be applied to type T
• The result value can be unambiguously converted to T (1-3) or bool (4).

The function can be implemented with the return type different from std::valarray. In this case, the replacement type has the following properties:

• All const member functions of std::valarray are provided.
• std::valarray, std::slice_array, std::gslice_array, std::mask_array and std::indirect_array can be constructed from the replacement type.
• All functions accepting an argument of type const std::valarray& except begin() and end() (since C++14) should also accept the replacement type.
• All functions accepting two arguments of type const std::valarray& should accept every combination of const std::valarray& and the replacement type.
• The return type does not add more than two levels of template nesting over the most deeply-nested argument type.