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Macros | Typedefs
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Description

Declares real and related constants.

Macros

#define GMX_DOUBLE_EPS   2.2204460492503131e-16
 Double precision accuracy.
 
#define GMX_DOUBLE_MAX   1.7976931348623157e+308
 Maximum double precision value - reduced 1 unit in last digit for MSVC.
 
#define GMX_DOUBLE_MIN   2.2250738585072014e-308
 Minimum double precision value.
 
#define GMX_FLOAT_EPS   1.19209290e-07F
 Single precision accuracy.
 
#define GMX_FLOAT_MAX   3.40282346E+38F
 Maximum single precision value - reduced 1 unit in last digit for MSVC.
 
#define GMX_FLOAT_MIN   1.175494351E-38F
 Minimum single precision value.
 
#define GMX_DOUBLE_NEGZERO   (-0.0)
 Negative zero in double.
 
#define GMX_FLOAT_NEGZERO   (-0.0f)
 Negative zero in float.
 
#define HAVE_REAL
 Used to check whether real is already defined.
 
#define GMX_MPI_REAL   MPI_FLOAT
 MPI data type for real.
 
#define GMX_REAL_EPS   GMX_FLOAT_EPS
 Accuracy for real.
 
#define GMX_REAL_MIN   GMX_FLOAT_MIN
 Smallest non-zero value for real.
 
#define GMX_REAL_MAX   GMX_FLOAT_MAX
 Largest finite value for real.
 
#define GMX_REAL_NEGZERO   GMX_FLOAT_NEGZERO
 Negative zero for real.
 
#define gmx_real_fullprecision_pfmt   "%14.7e"
 Format string for full real precision.
 

Typedefs

typedef float real
 Precision-dependent GROMACS floating-point type.