| Brian Silverman | 598d029 | 2018-08-04 23:56:47 -0700 | [diff] [blame^] | 1 | [/ |
| 2 | Copyright 2010 Neil Groves |
| 3 | Distributed under the Boost Software License, Version 1.0. |
| 4 | (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| 5 | /] |
| 6 | [section:map_values map_values] |
| 7 | |
| 8 | [table |
| 9 | [[Syntax] [Code]] |
| 10 | [[Pipe] [`rng | boost::adaptors::map_values`]] |
| 11 | [[Function] [`boost::adaptors::values(rng)`]] |
| 12 | ] |
| 13 | |
| 14 | * [*Precondition:] The `value_type` of the range is an instantiation of `std::pair`. |
| 15 | * [*Postcondition:] For all elements `x` in the returned range, `x` is the result of `y.second` where `y` is the corresponding element in the original range. |
| 16 | * [*Range Category:] __single_pass_range__ |
| 17 | * [*Range Return Type:] for constant ranges, `boost::select_second_const<decltype(rng)>` otherwise `boost:select_second_mutable<decltype(rng)>` |
| 18 | * [*Returned Range Category:] The range category of `rng`. |
| 19 | |
| 20 | [section:map_values_example map_values example] |
| 21 | [import ../../../test/adaptor_test/map_values_example.cpp] |
| 22 | [map_values_example] |
| 23 | [endsect] |
| 24 | |
| 25 | This would produce the output: |
| 26 | `` |
| 27 | 0,10,20,30,40,50,60,70,80,90, |
| 28 | `` |
| 29 | [endsect] |
| 30 | |
| 31 | |