replaced

replaced example

Syntax	Code
Pipe	`rng \| boost::adaptors::replaced(new_value, old_value)`
Function	`boost::adaptors::replace(rng, new_value, old_value)`

Precondition:
- new_value is convertible to the value_type of the range.
- old_value is convertible to the value_type of the range.
Postcondition: For all elements x in the returned range, the value x is equal to the value of (y == old_value) ? new_value : y where y is the corresponding element in the original range.
Range Category: Single Pass Range
Range Return Type: boost::replaced_range<decltype(rng)>
Returned Range Category: The range category of rng.

replaced example

#include <boost/range/adaptor/replaced.hpp>
#include <boost/range/algorithm/copy.hpp>
#include <boost/assign.hpp>
#include <iterator>
#include <iostream>
#include <vector>

int main(int argc, const char* argv[])
{
    using namespace boost::adaptors;
    using namespace boost::assign;

    std::vector<int> input;
    input += 1,2,3,2,5,2,7,2,9;

    boost::copy(
        input | replaced(2, 10),
        std::ostream_iterator<int>(std::cout, ","));

    return 0;
}

This would produce the output:

1,10,3,10,5,10,7,10,9,

Boost C++ Libraries

replaced

replaced example