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#define pi 3.14159 // Predefine pi
#ifndef HAVE_USEFUL_FUNCTIONS_HH
#define HAVE_USEFUL_FUNCTIONS_HH
#ifdef __CPLUSPLUS
template <class class_t>
#else
#define inline // strip from pre-processed file
#define class_t double
#endif // __CPLUSPLUS
#ifndef MTT_UNUSED
#ifdef __GNUC__
#define MTT_UNUSED __attribute__ ((unused))
#else
#define MTT_UNUSED
#endif // __GNUC__
#endif // MTT_UNUSED
// == Template functions ==
static inline class_t max (const class_t &x1, const class_t &x2) MTT_UNUSED;
static inline class_t min (const class_t &x1, const class_t &x2) MTT_UNUSED;
static inline class_t sign (const class_t &x) MTT_UNUSED;
class_t
max (const class_t &x1, const class_t &x2)
{
return ((x1 >= x2) ? x1 : (x1 < x2) ? x2 : 0);
}
class_t
min (const class_t &x1, const class_t &x2)
{
return ((x1 <= x2) ? x1 : (x1 > x2) ? x2 : 0);
}
class_t
sign (const class_t &x)
return ((x > 0) ? +1 : (x < 0) ? -1 : 0);
}
// == Octave functions ==
static inline Matrix ones (const int r = 1, const int c = 1) MTT_UNUSED;
static inline ColumnVector nozeros (const ColumnVector v0, const double tol = 0.0) MTT_UNUSED;
static inline ColumnVector zeros (const int r) MTT_UNUSED;
static inline Matrix zeros (const int r, const int c) MTT_UNUSED;
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#define pi 3.14159 // Predefine pi
#ifndef HAVE_USEFUL_FUNCTIONS_HH
#define HAVE_USEFUL_FUNCTIONS_HH
#ifdef __CPLUSPLUS
template <class return_t>
template <class class_t>
typedef class_t &classref_t;
#else
#define inline // strip from pre-processed file
#define return_t double
#define class_t double
typedef class_t classref_t;
#endif // __CPLUSPLUS
#ifndef MTT_UNUSED
#ifdef __GNUC__
#define MTT_UNUSED __attribute__ ((unused))
#else
#define MTT_UNUSED
#endif // __GNUC__
#endif // MTT_UNUSED
// == Declarations ==
// - Template functions -
static inline return_t max (const classref_t x1, const classref_t x2) MTT_UNUSED;
static inline return_t min (const classref_t x1, const classref_t x2) MTT_UNUSED;
static inline return_t nonsingular (const classref_t x) MTT_UNUSED;
static inline return_t sign (const classref_t x) MTT_UNUSED;
// - Octave functions -
#ifdef __CPLUSPLUS
static inline Matrix ones (const int r = 1, const int c = 1) MTT_UNUSED;
static inline ColumnVector nozeros (const ColumnVector v0, const double tol = 0.0) MTT_UNUSED;
static inline ColumnVector zeros (const int r) MTT_UNUSED;
static inline Matrix zeros (const int r, const int c) MTT_UNUSED;
#endif // __CPLUSPLUS
// == Defininitions ==
// - Template functions -
static inline return_t
max (const classref_t x1, const classref_t x2)
{
return static_cast<return_t>((x1 >= x2) ? x1 : (x1 < x2) ? x2 : 0);
}
static inline return_t
min (const classref_t x1, const classref_t x2)
{
return static_cast<return_t>((x1 <= x2) ? x1 : (x1 > x2) ? x2 : 0);
}
static inline return_t
nonsingular (const classref_t x)
{
return static_cast<return_t>((x == 0) ? 1.0e-30 : x);
}
static inline return_t
sign (const classref_t x)
{
return static_cast<return_t>((x > 0) ? +1 : (x < 0) ? -1 : 0);
}
// - Octave functions -
#ifdef __CPLUSPLUS
Matrix
ones (const int r = 1, const int c = 1)
{
Matrix m (r, c, 1.0);
return m;
}
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Matrix
zeros (const int r, const int c)
{
Matrix m (r, c, 0.0);
return m;
}
#endif // HAVE_USEFUL_FUNCTIONS_HH
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Matrix
zeros (const int r, const int c)
{
Matrix m (r, c, 0.0);
return m;
}
#endif __CPLUSPLUS
#endif // HAVE_USEFUL_FUNCTIONS_HH
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