82 lines
3.0 KiB
C
82 lines
3.0 KiB
C
|
/// \file cmFloatTypes.h
|
||
|
|
/// \brief Declare the types cmReal_t and cmSample_t and define some useful limits.
|
||
|
|
///
|
||
|
|
/// For signal processing functions the cm library uses the types cmSample_t to indicate an audio
|
||
|
|
/// sample value and cmReal_t to specify a general purpose floating point value. The library
|
||
|
|
/// is designed in such a way that the actual type, float or double, for these two types may
|
||
|
|
/// be set at compilation time. Set the preprocessor variable CM_FLOAT_SMP to 1 to indicate
|
||
|
|
/// that cmSample_t will be of type 'float' otherwise it will be of type 'double'.
|
||
|
|
/// Set the preprocessor variable CM_FLOAT_REAL to 1 to indicate
|
||
|
|
/// that cmSample_t will be of type 'float' otherwise it will be of type 'double'.
|
||
|
|
/// By default cmSample_t is float nad cmReal_t is double.
|
||
|
|
///
|
||
|
|
|
||
|
|
#ifndef cmFloatTypes_h
|
||
|
|
#define cmFloatTypes_h
|
||
|
|
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------
|
||
|
|
#ifndef CM_FLOAT_SMP
|
||
|
|
#define CM_FLOAT_SMP 1
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if CM_FLOAT_SMP == 1
|
||
|
|
|
||
|
|
typedef float cmSample_t; ///< cmSample_t is a float
|
||
|
|
typedef float _Complex cmComplexS_t;///< cmComplexS_t is single precision.
|
||
|
|
|
||
|
|
#define cmSample_EPSILON FLT_EPSILON ///< Minimum increment between 1.0 and the next greaterv value. (1E-5)
|
||
|
|
#define cmSample_MAX FLT_MAX ///< Maximum representable number (1E+37).
|
||
|
|
#define cmSample_MIN FLT_MIN ///< Minimum representable number (1E-37).
|
||
|
|
|
||
|
|
#else
|
||
|
|
|
||
|
|
typedef double cmSample_t; ///< cmSample_t is a double
|
||
|
|
typedef double _Complex cmComplexS_t; ///< cmComplexS_t is doulbe precision.
|
||
|
|
|
||
|
|
#define cmSample_EPSILON DBL_EPSILON ///< Minimum increment between 1.0 and the next greaterv value. (1E-9)
|
||
|
|
#define cmSample_MAX DBL_MAX ///< Maximum representable number (1E+37).
|
||
|
|
#define cmSample_MIN DBL_MIN ///< Minimum representable number (1E-37).
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
//-----------------------------------------------------------------
|
||
|
|
//-----------------------------------------------------------------
|
||
|
|
//-----------------------------------------------------------------
|
||
|
|
|
||
|
|
#ifndef CM_FLOAT_REAL
|
||
|
|
#define CM_FLOAT_REAL 0
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if CM_FLOAT_REAL == 1
|
||
|
|
|
||
|
|
typedef float cmReal_t; ///< cmReal_t is a float
|
||
|
|
typedef float _Complex cmComplexR_t; ///< cmComplexR_t is single precision.
|
||
|
|
|
||
|
|
#define cmReal_EPSILON FLT_EPSILON ///< Minimum increment between 1.0 and the next greaterv value. (1E-5)
|
||
|
|
#define cmReal_MAX FLT_MAX ///< Maximum representable number (1E+37).
|
||
|
|
#define cmReal_MIN FLT_MIN ///< Minimum representable number (1E-37).
|
||
|
|
|
||
|
|
#else
|
||
|
|
|
||
|
|
typedef double cmReal_t; ///< cmReal_t is a double.
|
||
|
|
typedef double _Complex cmComplexR_t; ///< cmComplexR_t is double precision.
|
||
|
|
|
||
|
|
#define cmReal_EPSILON DBL_EPSILON ///< Minimum increment between 1.0 and the next greaterv value (1E-9).
|
||
|
|
#define cmReal_MAX DBL_MAX ///< Maximum representable number (1E+37).
|
||
|
|
#define cmReal_MIN DBL_MIN ///< Minimum representable number (1E-37).
|
||
|
|
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
#endif
|