Examples

Example 1: partition. Use partition to just divide the range into two groups: all elements that satisfy the predicate, followed by all elements that don’t. This is all you need to answer questions like these:

• “Who are all the students with a grade of B+ or better?” For example, partition( students.begin(), students.end(), GradeAtLeast("B+") ); does the work and returns an iterator to the first student whose grade is not at least B+.

• “What are all the products with weight less than 10kg?” For example, partition( products.begin(), products.end(), WeightUnder(10) ); does the work and returns an iterator to the first product whose weight is 10kg or more.