std::transform

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Defined in header <algorithm>

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template< class InputIterator, class OutputIterator, class UnaryOperation >

OutputIterator transform( InputIterator first1, InputIterator1 last1,

OutputIterator d_first, UnaryOperation unary_op );

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template< class InputIterator1, class InputIterator2, class OutputIterator, class BinaryOperation >

OutputIterator transform( InputIterator1 first1, InputIterator1 last1,

InputIterator2 first2, OutputIterator d_first, BinaryOperation binary_op );

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Applies the given function to a range and stores the result in another range, beginning at d_first. In the first version unary operation unary_op is applied to the range, defined by [first1, last1). In the second version binary operation binary_op is applied to pairs of elements from two ranges: one defined by [first1, last1) and other beginning at first2.

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first1, last1	-	the first range of elements to transform
first2	-	the beginning of the second range of elements to transform
d_first	-	the beginning of the destination range
unary_op	-	unary operation function object that will be applied. The signature of the function should be equivalent to the following: Ret fun(const Type &a); The signature does not need to have const &. The type Type must be such that an object of type InputIterator can be dereferenced and then implicitly converted to Type. The type Ret must be such that an object of type OutputIterator can be dereferenced and assigned a value of type Ret.
binary_op	-	binary operation function object that will be applied. The signature of the function should be equivalent to the following: Ret fun(const Type1 &a, const Type2 &b); The signature does not need to have const &. The types Type1 and Type2 must be such that objects of types InputIterator1 and InputIterator2 can be dereferenced and then implicitly converted to Type1 and Type2 respectively. The type Ret must be such that an object of type OutputIterator can be dereferenced and assigned a value of type Ret.