#define UNIT e3_normalize
#include "test_main.cpp"

signal_t normalize( const signal_t &s )
{
    double m = 0;
    signal_t out;

    for ( double x : s )
        m = std::max( m, x );

    if ( m == 0 )
        m = 1;

    for ( double x : s )
        out.push_back( x / m );

    return out;
}