Constants.H

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#ifndef CONSTANTS_H
#define CONSTANTS_H
 
#include <AMReX_REAL.H>
namespace spades::constants {
static constexpr int N_STATES = 2;
 
static constexpr int LVT_IDX = 0;
 
static constexpr int RLB_IDX = 1;
 
static constexpr amrex::Real LOW_NUM = static_cast<amrex::Real>(
    std::numeric_limits<amrex::Real>::lowest() * 1e-10);
 
static constexpr amrex::Real SMALL_NUM = static_cast<amrex::Real>(
    std::numeric_limits<amrex::Real>::epsilon() * 1e10);
 
static constexpr amrex::Real EPS =
    static_cast<amrex::Real>(std::numeric_limits<amrex::Real>::epsilon());
 
static constexpr amrex::Real TOL = 1e-6;
 
static constexpr amrex::Real LARGE_NUM =
    static_cast<amrex::Real>(std::numeric_limits<amrex::Real>::max() * 1e-10);
 
static constexpr amrex::Real HALF = 0.5;
 
static constexpr int TWO_TO_EIGHT = 256;
 
static constexpr int FILE_NAME_DIGITS = 5;
 
static constexpr int RNG_FILE_NAME_DIGITS = 10;
 
static constexpr int HEADER_FILE_PRECISION = 17;
 
static constexpr int MAX_ROLLBACK_ITERS = 20;
 
#if (AMREX_SPACEDIM == 1)
static constexpr int I_NBITS = 28;
 
static constexpr int J_NBITS = 0;
 
static constexpr int K_NBITS = 0;
 
#elif (AMREX_SPACEDIM == 2)
static constexpr int I_NBITS = 14;
 
static constexpr int J_NBITS = 14;
 
static constexpr int K_NBITS = 0;
 
#elif (AMREX_SPACEDIM == 3)
static constexpr int I_NBITS = 10;
 
static constexpr int J_NBITS = 9;
 
static constexpr int K_NBITS = 9;
#endif
 
static constexpr int TYPE_NBITS = 4;
 
static constexpr int TIMESTAMP_NBITS = 32;
 
static constexpr int TOTAL_NBITS = 64;
 
} // namespace spades::constants
 
#endif