precision.h

#pragma once
#include "tool/macro.h"
 
#ifndef TINKER_DETERMINISTIC_FORCE
#   if TINKER_DOUBLE_PRECISION
#      define TINKER_DETERMINISTIC_FORCE 0
#   else
#      define TINKER_DETERMINISTIC_FORCE 1
#   endif
#endif
 
namespace tinker {
 
typedef unsigned long long fixed;
static_assert(sizeof(fixed) == 8, "");
 
#if TINKER_DOUBLE_PRECISION
#   define TINKER_REAL_SIZE  8
#   define TINKER_MIXED_SIZE 8
typedef double real;
typedef double mixed;
#endif
#if TINKER_MIXED_PRECISION
#   define TINKER_REAL_SIZE  4
#   define TINKER_MIXED_SIZE 8
typedef float real;
typedef double mixed;
#endif
#if TINKER_SINGLE_PRECISION
#   define TINKER_REAL_SIZE  4
#   define TINKER_MIXED_SIZE 4
typedef float real;
typedef float mixed;
#endif
 
typedef mixed time_prec;   
typedef mixed T_prec;      
typedef mixed vel_prec;    
typedef mixed pos_prec;    
typedef real e_prec;       
typedef real v_prec;       
typedef real g_prec;       
typedef mixed energy_prec; 
typedef mixed virial_prec; 
#if TINKER_DETERMINISTIC_FORCE
typedef fixed grad_prec;
#else
typedef real grad_prec;
#endif
}