array of circular buffers, C++ (vc++)

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//Microsoft (R) C/C++ Optimizing Compiler Version 19.00.23506 for x86

#include <iostream>
#include <boost/circular_buffer.hpp>
#include <vector>
#include <random>
#include <ctime>
#include <iomanip>

template < typename SEQ >
void print_seq( const SEQ& sequence, int width = 12, std::ostream& stm = std::cout )
{
    for( const auto& value : sequence ) stm << std::setw(width) << value << ' ' ;
    stm << '\n' ;
}

std::vector< boost::circular_buffer<double> > make_buffers( std::size_t num_buffers, std::size_t  buff_sz )
{
    std::vector< boost::circular_buffer<double> > buffers ;
    while( buffers.size() < num_buffers )
    {
        buffers.emplace_back(buff_sz) ; // add a ring buffer with capacity of buff_sz
        buffers.back().rresize(buff_sz) ; // resize to full capacity; initialise with zeroes
    }
    return buffers ;
}

double random_value()
{
    static std::mt19937 rng( std::time(nullptr) ) ; // random number generatot
    static std::uniform_real_distribution<double> distrib( 0, 99'999'999 ) ; // random number distribution
    return distrib(rng) ;
}

void random_fill( boost::circular_buffer<double>& ring_buffer )
{ for( double& value : ring_buffer ) value = random_value() ; }

int main()
{
    constexpr std::size_t ARRAY_SIZE = 4 ;
    constexpr std::size_t RING_BUFFER_SIZE = 8 ; // just an example

// make an array of ARRAY_SIZE circular buffers each with RING_BUFFER_SIZE values
    std::vector< boost::circular_buffer<double> > buffers = make_buffers( ARRAY_SIZE, RING_BUFFER_SIZE );

// print the content of the buffers
    std::cout << std::fixed << std::setprecision(2) ;
    for( const auto& ring_buffer : buffers ) print_seq(ring_buffer) ; // all zeroes right now
    
    std::cout << "-------------------------------------------------------------------------------------\n" ;

// fill the buffers with random values
    for( auto& ring_buffer : buffers ) random_fill(ring_buffer) ;

// print the contents again
    for( const auto& ring_buffer : buffers ) print_seq(ring_buffer) ;
}

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Compilation time: 2,68 sec, absolute running time: 0,23 sec, absolute service time: 2,92 sec