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|
// -*- C++ -*-
/***************************************************************************
* blitz/funcs.h Function objects for math functions
*
* $Id$
*
* Copyright (C) 1997-2011 Todd Veldhuizen <tveldhui@acm.org>
*
* This file is a part of Blitz.
*
* Blitz is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation, either version 3
* of the License, or (at your option) any later version.
*
* Blitz is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Blitz. If not, see <http://www.gnu.org/licenses/>.
*
* Suggestions: blitz-devel@lists.sourceforge.net
* Bugs: blitz-support@lists.sourceforge.net
*
* For more information, please see the Blitz++ Home Page:
* https://sourceforge.net/projects/blitz/
*
*************************************************************************/
#ifndef BZ_FUNCS_H
#define BZ_FUNCS_H
#include <blitz/blitz.h>
#include <blitz/promote.h>
#include <blitz/prettyprint.h>
#include <cstdlib>
BZ_NAMESPACE(blitz)
/* Helper functions. We use SFINAE to make these apply only for
non-blitz numerical types (POD and complex), because otherwise they
match against Array, etc, better than the ET versions that take
ETBase parameters. */
template<typename T, bool b> struct _bz_isnot_blitz {};
template<typename T> struct _bz_isnot_blitz<T, true> {typedef T Type;};
template<typename T, bool b> struct _bz_isnot_blitz<std::complex<T>, b> {typedef std::complex<T> Type;};
template <typename T>
inline typename _bz_isnot_blitz<T, std::numeric_limits<T>::is_specialized>::Type
pow2(const T x)
{ return x*x; }
template <typename T>
inline typename _bz_isnot_blitz<T, std::numeric_limits<T>::is_specialized>::Type
pow3(const T x)
{ return x*x*x; }
template <typename T>
inline typename _bz_isnot_blitz<T, std::numeric_limits<T>::is_specialized>::Type
pow4(const T x)
{ return x*x*x*x; }
template <typename T>
inline typename _bz_isnot_blitz<T, std::numeric_limits<T>::is_specialized>::Type
pow5(const T x)
{ return x*x*x*x*x; }
template <typename T>
inline typename _bz_isnot_blitz<T, std::numeric_limits<T>::is_specialized>::Type
pow6(const T x)
{ return x*x*x*x*x*x; }
template <typename T>
inline typename _bz_isnot_blitz<T, std::numeric_limits<T>::is_specialized>::Type
pow7(const T x)
{ return x*x*x*x*x*x*x; }
template <typename T>
inline typename _bz_isnot_blitz<T, std::numeric_limits<T>::is_specialized>::Type
pow8(const T x)
{ return x*x*x*x*x*x*x*x; }
/** This class can be used to select between two types based on a bool. */
template<bool b, typename T1, typename T2> struct ifthenelse {
typedef T1 Type;
};
template<typename T1, typename T2> struct ifthenelse<false,T1,T2> {
typedef T2 Type;
};
/* Unary functions whose return type is the same as the argument (if
coerce_int is false) or (if coerce_int is true) returns a double
for int arguments. (This is how gcc defines its math functions, so
we should do the same.) Coerce_int is true except for the functions
that can also meaningfully operate on ints. */
#define BZ_DEFINE_UNARY_FUNC(name,fun,coerce_int) \
template<typename T_numtype1> \
struct name { \
typedef typename ifthenelse<coerce_int,typename ifthenelse<numeric_limits<T_numtype1>::is_integer,double,T_numtype1>::Type,T_numtype1>::Type T_numtype; \
\
static inline T_numtype \
apply(const T_numtype1 a) \
{ return fun(a); } \
\
template<typename T1> \
static inline void prettyPrint(BZ_STD_SCOPE(string) &str, \
BZ_BLITZ_SCOPE(prettyPrintFormat) &format, const T1& t1) \
{ \
str += #fun; \
str += "("; \
t1.prettyPrint(str, format); \
str += ")"; \
} \
};
BZ_DEFINE_UNARY_FUNC(Fn_abs,BZ_MATHFN_SCOPE(abs),false)
BZ_DEFINE_UNARY_FUNC(Fn_acos,BZ_MATHFN_SCOPE(acos),true)
BZ_DEFINE_UNARY_FUNC(Fn_asin,BZ_MATHFN_SCOPE(asin),true)
BZ_DEFINE_UNARY_FUNC(Fn_atan,BZ_MATHFN_SCOPE(atan),true)
BZ_DEFINE_UNARY_FUNC(Fn_ceil,BZ_MATHFN_SCOPE(ceil),true)
BZ_DEFINE_UNARY_FUNC(Fn_cos,BZ_MATHFN_SCOPE(cos),true)
BZ_DEFINE_UNARY_FUNC(Fn_cosh,BZ_MATHFN_SCOPE(cosh),true)
BZ_DEFINE_UNARY_FUNC(Fn_exp,BZ_MATHFN_SCOPE(exp),true)
BZ_DEFINE_UNARY_FUNC(Fn_fabs,BZ_MATHFN_SCOPE(fabs),true)
BZ_DEFINE_UNARY_FUNC(Fn_floor,BZ_MATHFN_SCOPE(floor),true)
BZ_DEFINE_UNARY_FUNC(Fn_log,BZ_MATHFN_SCOPE(log),true)
BZ_DEFINE_UNARY_FUNC(Fn_log10,BZ_MATHFN_SCOPE(log10),true)
BZ_DEFINE_UNARY_FUNC(Fn_sin,BZ_MATHFN_SCOPE(sin),true)
BZ_DEFINE_UNARY_FUNC(Fn_sinh,BZ_MATHFN_SCOPE(sinh),true)
BZ_DEFINE_UNARY_FUNC(Fn_sqrt,BZ_MATHFN_SCOPE(sqrt),true)
BZ_DEFINE_UNARY_FUNC(Fn_tan,BZ_MATHFN_SCOPE(tan),true)
BZ_DEFINE_UNARY_FUNC(Fn_tanh,BZ_MATHFN_SCOPE(tanh),true)
#ifdef BZ_HAVE_IEEE_MATH
BZ_DEFINE_UNARY_FUNC(Fn_acosh,BZ_IEEEMATHFN_SCOPE(acosh),true)
BZ_DEFINE_UNARY_FUNC(Fn_asinh,BZ_IEEEMATHFN_SCOPE(asinh),true)
BZ_DEFINE_UNARY_FUNC(Fn_atanh,BZ_IEEEMATHFN_SCOPE(atanh),true)
BZ_DEFINE_UNARY_FUNC(Fn_cbrt,BZ_IEEEMATHFN_SCOPE(cbrt),true)
BZ_DEFINE_UNARY_FUNC(Fn_erf,BZ_IEEEMATHFN_SCOPE(erf),true)
BZ_DEFINE_UNARY_FUNC(Fn_erfc,BZ_IEEEMATHFN_SCOPE(erfc),true)
BZ_DEFINE_UNARY_FUNC(Fn_expm1,BZ_IEEEMATHFN_SCOPE(expm1),true)
BZ_DEFINE_UNARY_FUNC(Fn_j0,BZ_IEEEMATHFN_SCOPE(j0),true)
BZ_DEFINE_UNARY_FUNC(Fn_j1,BZ_IEEEMATHFN_SCOPE(j1),true)
BZ_DEFINE_UNARY_FUNC(Fn_lgamma,BZ_IEEEMATHFN_SCOPE(lgamma),true)
BZ_DEFINE_UNARY_FUNC(Fn_logb,BZ_IEEEMATHFN_SCOPE(logb),true)
BZ_DEFINE_UNARY_FUNC(Fn_log1p,BZ_IEEEMATHFN_SCOPE(log1p),true)
BZ_DEFINE_UNARY_FUNC(Fn_rint,BZ_IEEEMATHFN_SCOPE(rint),true)
BZ_DEFINE_UNARY_FUNC(Fn_y0,BZ_IEEEMATHFN_SCOPE(y0),true)
BZ_DEFINE_UNARY_FUNC(Fn_y1,BZ_IEEEMATHFN_SCOPE(y1),true)
#endif
#ifdef BZ_HAVE_SYSTEM_V_MATH
BZ_DEFINE_UNARY_FUNC(Fn__class,BZ_IEEEMATHFN_SCOPE(_class),true)
BZ_DEFINE_UNARY_FUNC(Fn_nearest,BZ_IEEEMATHFN_SCOPE(nearest),true)
BZ_DEFINE_UNARY_FUNC(Fn_rsqrt,BZ_IEEEMATHFN_SCOPE(rsqrt),true)
#endif
BZ_DEFINE_UNARY_FUNC(Fn_sqr,BZ_BLITZ_SCOPE(pow2),false)
BZ_DEFINE_UNARY_FUNC(Fn_cube,BZ_BLITZ_SCOPE(pow3),false)
BZ_DEFINE_UNARY_FUNC(Fn_pow4,BZ_BLITZ_SCOPE(pow4),false)
BZ_DEFINE_UNARY_FUNC(Fn_pow5,BZ_BLITZ_SCOPE(pow5),false)
BZ_DEFINE_UNARY_FUNC(Fn_pow6,BZ_BLITZ_SCOPE(pow6),false)
BZ_DEFINE_UNARY_FUNC(Fn_pow7,BZ_BLITZ_SCOPE(pow7),false)
BZ_DEFINE_UNARY_FUNC(Fn_pow8,BZ_BLITZ_SCOPE(pow8),false)
/* Unary functions that return a specified type */
#define BZ_DEFINE_UNARY_FUNC_RET(name,fun,ret) \
template<typename T_numtype1> \
struct name { \
typedef ret T_numtype; \
\
static inline T_numtype \
apply(const T_numtype1 a) \
{ return fun(a); } \
\
template<typename T1> \
static inline void prettyPrint(BZ_STD_SCOPE(string) &str, \
BZ_BLITZ_SCOPE(prettyPrintFormat) &format, const T1& t1) \
{ \
str += #fun; \
str += "("; \
t1.prettyPrint(str, format); \
str += ")"; \
} \
};
#ifdef BZ_HAVE_IEEE_MATH
BZ_DEFINE_UNARY_FUNC_RET(Fn_ilogb,BZ_IEEEMATHFN_SCOPE(ilogb),int)
#endif
#ifdef BZ_HAVE_SYSTEM_V_MATH
BZ_DEFINE_UNARY_FUNC_RET(Fn_itrunc,BZ_IEEEMATHFN_SCOPE(itrunc),int)
BZ_DEFINE_UNARY_FUNC_RET(Fn_uitrunc,BZ_IEEEMATHFN_SCOPE(uitrunc),unsigned int)
#endif
#ifdef BZ_HAVE_COMPLEX
/* Specialization of unary functor for complex type */
#define BZ_DEFINE_UNARY_CFUNC(name,fun) \
template<typename T> \
struct name< BZ_STD_SCOPE(complex)<T> > { \
typedef BZ_STD_SCOPE(complex)<T> T_numtype1; \
typedef BZ_STD_SCOPE(complex)<T> T_numtype; \
\
static inline T_numtype \
apply(const T_numtype1 a) \
{ return fun(a); } \
\
template<typename T1> \
static inline void prettyPrint(BZ_STD_SCOPE(string) &str, \
BZ_BLITZ_SCOPE(prettyPrintFormat) &format, const T1& t1) \
{ \
str += #fun; \
str += "("; \
t1.prettyPrint(str, format); \
str += ")"; \
} \
};
#ifdef BZ_HAVE_COMPLEX_FCNS
BZ_DEFINE_UNARY_FUNC(Fn_conj,BZ_CMATHFN_SCOPE(conj),false)
#endif
#ifdef BZ_HAVE_COMPLEX_MATH1
BZ_DEFINE_UNARY_CFUNC(Fn_cos,BZ_CMATHFN_SCOPE(cos))
BZ_DEFINE_UNARY_CFUNC(Fn_cosh,BZ_CMATHFN_SCOPE(cosh))
BZ_DEFINE_UNARY_CFUNC(Fn_exp,BZ_CMATHFN_SCOPE(exp))
BZ_DEFINE_UNARY_CFUNC(Fn_log,BZ_CMATHFN_SCOPE(log))
BZ_DEFINE_UNARY_CFUNC(Fn_log10,BZ_CMATHFN_SCOPE(log10))
BZ_DEFINE_UNARY_CFUNC(Fn_sin,BZ_CMATHFN_SCOPE(sin))
BZ_DEFINE_UNARY_CFUNC(Fn_sinh,BZ_CMATHFN_SCOPE(sinh))
BZ_DEFINE_UNARY_CFUNC(Fn_sqrt,BZ_CMATHFN_SCOPE(sqrt))
BZ_DEFINE_UNARY_CFUNC(Fn_tan,BZ_CMATHFN_SCOPE(tan))
BZ_DEFINE_UNARY_CFUNC(Fn_tanh,BZ_CMATHFN_SCOPE(tanh))
#endif // BZ_HAVE_COMPLEX_MATH1
BZ_DEFINE_UNARY_CFUNC(Fn_sqr,BZ_BLITZ_SCOPE(pow2))
BZ_DEFINE_UNARY_CFUNC(Fn_cube,BZ_BLITZ_SCOPE(pow3))
BZ_DEFINE_UNARY_CFUNC(Fn_pow4,BZ_BLITZ_SCOPE(pow4))
BZ_DEFINE_UNARY_CFUNC(Fn_pow5,BZ_BLITZ_SCOPE(pow5))
BZ_DEFINE_UNARY_CFUNC(Fn_pow6,BZ_BLITZ_SCOPE(pow6))
BZ_DEFINE_UNARY_CFUNC(Fn_pow7,BZ_BLITZ_SCOPE(pow7))
BZ_DEFINE_UNARY_CFUNC(Fn_pow8,BZ_BLITZ_SCOPE(pow8))
/* Unary functions that apply only to complex<T> and return T */
#define BZ_DEFINE_UNARY_CFUNC2(name,fun) \
template<typename T_numtype1> \
struct name; \
\
template<typename T> \
struct name< BZ_STD_SCOPE(complex)<T> > { \
typedef BZ_STD_SCOPE(complex)<T> T_numtype1; \
typedef T T_numtype; \
\
static inline T_numtype \
apply(const T_numtype1 a) \
{ return fun(a); } \
\
template<typename T1> \
static inline void prettyPrint(BZ_STD_SCOPE(string) &str, \
BZ_BLITZ_SCOPE(prettyPrintFormat) &format, const T1& t1) \
{ \
str += #fun; \
str += "("; \
t1.prettyPrint(str, format); \
str += ")"; \
} \
};
#ifdef BZ_HAVE_COMPLEX_FCNS
BZ_DEFINE_UNARY_CFUNC2(Fn_abs,BZ_CMATHFN_SCOPE(abs))
BZ_DEFINE_UNARY_CFUNC2(Fn_arg,BZ_CMATHFN_SCOPE(arg))
BZ_DEFINE_UNARY_CFUNC2(Fn_imag,BZ_CMATHFN_SCOPE(imag))
BZ_DEFINE_UNARY_CFUNC2(Fn_norm,BZ_CMATHFN_SCOPE(norm))
BZ_DEFINE_UNARY_CFUNC2(Fn_real,BZ_CMATHFN_SCOPE(real))
#endif // BZ_HAVE_COMPLEX_FCNS
#endif // BZ_HAVE_COMPLEX
/* Binary functions that return type based on type promotion */
#define BZ_DEFINE_BINARY_FUNC(name,fun) \
template<typename T_numtype1, typename T_numtype2> \
struct name { \
typedef BZ_PROMOTE(T_numtype1, T_numtype2) T_numtype; \
\
static inline T_numtype \
apply(T_numtype1 a, T_numtype2 b) \
{ return fun(a,b); } \
\
template<typename T1, typename T2> \
static inline void prettyPrint(BZ_STD_SCOPE(string) &str, \
BZ_BLITZ_SCOPE(prettyPrintFormat) &format, const T1& t1, \
const T2& t2) \
{ \
str += #fun; \
str += "("; \
t1.prettyPrint(str, format); \
str += ","; \
t2.prettyPrint(str, format); \
str += ")"; \
} \
};
BZ_DEFINE_BINARY_FUNC(Fn_atan2,BZ_MATHFN_SCOPE(atan2))
BZ_DEFINE_BINARY_FUNC(Fn_fmod,BZ_MATHFN_SCOPE(fmod))
BZ_DEFINE_BINARY_FUNC(Fn_pow,BZ_MATHFN_SCOPE(pow))
#ifdef BZ_HAVE_SYSTEM_V_MATH
BZ_DEFINE_BINARY_FUNC(Fn_copysign,BZ_IEEEMATHFN_SCOPE(copysign))
BZ_DEFINE_BINARY_FUNC(Fn_drem,BZ_IEEEMATHFN_SCOPE(drem))
BZ_DEFINE_BINARY_FUNC(Fn_hypot,BZ_IEEEMATHFN_SCOPE(hypot))
BZ_DEFINE_BINARY_FUNC(Fn_nextafter,BZ_IEEEMATHFN_SCOPE(nextafter))
BZ_DEFINE_BINARY_FUNC(Fn_remainder,BZ_IEEEMATHFN_SCOPE(remainder))
BZ_DEFINE_BINARY_FUNC(Fn_scalb,BZ_IEEEMATHFN_SCOPE(scalb))
#endif
/* Binary functions that return a specified type */
#define BZ_DEFINE_BINARY_FUNC_RET(name,fun,ret) \
template<typename T_numtype1, typename T_numtype2> \
struct name { \
typedef ret T_numtype; \
\
static inline T_numtype \
apply(T_numtype1 a, T_numtype2 b) \
{ return fun(a,b); } \
\
template<typename T1, typename T2> \
static inline void prettyPrint(BZ_STD_SCOPE(string) &str, \
BZ_BLITZ_SCOPE(prettyPrintFormat) &format, const T1& t1, \
const T2& t2) \
{ \
str += #fun; \
str += "("; \
t1.prettyPrint(str, format); \
str += ","; \
t2.prettyPrint(str, format); \
str += ")"; \
} \
};
#ifdef BZ_HAVE_SYSTEM_V_MATH
BZ_DEFINE_BINARY_FUNC_RET(Fn_unordered,BZ_IEEEMATHFN_SCOPE(unordered),int)
#endif
#ifdef BZ_HAVE_COMPLEX
/* Specialization of binary functor for complex type */
#define BZ_DEFINE_BINARY_CFUNC(name,fun) \
template<typename T> \
struct name< BZ_STD_SCOPE(complex)<T>, BZ_STD_SCOPE(complex)<T> > { \
typedef BZ_STD_SCOPE(complex)<T> T_numtype1; \
typedef BZ_STD_SCOPE(complex)<T> T_numtype2; \
typedef BZ_STD_SCOPE(complex)<T> T_numtype; \
\
static inline T_numtype \
apply(T_numtype1 a, T_numtype2 b) \
{ return fun(a,b); } \
\
template<typename T1, typename T2> \
static inline void prettyPrint(BZ_STD_SCOPE(string) &str, \
BZ_BLITZ_SCOPE(prettyPrintFormat) &format, const T1& t1, \
const T2& t2) \
{ \
str += #fun; \
str += "("; \
t1.prettyPrint(str, format); \
str += ","; \
t2.prettyPrint(str, format); \
str += ")"; \
} \
}; \
\
template<typename T> \
struct name< BZ_STD_SCOPE(complex)<T>, T > { \
typedef BZ_STD_SCOPE(complex)<T> T_numtype1; \
typedef T T_numtype2; \
typedef BZ_STD_SCOPE(complex)<T> T_numtype; \
\
static inline T_numtype \
apply(T_numtype1 a, T_numtype2 b) \
{ return fun(a,b); } \
\
template<typename T1, typename T2> \
static inline void prettyPrint(BZ_STD_SCOPE(string) &str, \
BZ_BLITZ_SCOPE(prettyPrintFormat) &format, const T1& t1, \
const T2& t2) \
{ \
str += #fun; \
str += "("; \
t1.prettyPrint(str, format); \
str += ","; \
t2.prettyPrint(str, format); \
str += ")"; \
} \
}; \
\
template<typename T> \
struct name< T, BZ_STD_SCOPE(complex)<T> > { \
typedef T T_numtype1; \
typedef BZ_STD_SCOPE(complex)<T> T_numtype2; \
typedef BZ_STD_SCOPE(complex)<T> T_numtype; \
\
static inline T_numtype \
apply(T_numtype1 a, T_numtype2 b) \
{ return fun(a,b); } \
\
template<typename T1, typename T2> \
static inline void prettyPrint(BZ_STD_SCOPE(string) &str, \
BZ_BLITZ_SCOPE(prettyPrintFormat) &format, const T1& t1, \
const T2& t2) \
{ \
str += #fun; \
str += "("; \
t1.prettyPrint(str, format); \
str += ","; \
t2.prettyPrint(str, format); \
str += ")"; \
} \
};
#ifdef BZ_HAVE_COMPLEX_MATH1
BZ_DEFINE_BINARY_CFUNC(Fn_pow,BZ_CMATHFN_SCOPE(pow))
#endif
/* Binary functions that apply only to T and return complex<T> */
#define BZ_DEFINE_BINARY_FUNC_CRET(name,fun) \
template<typename T_numtype1, typename T_numtype2> \
struct name; \
\
template<typename T> \
struct name<T, T> { \
typedef T T_numtype1; \
typedef T T_numtype2; \
typedef BZ_STD_SCOPE(complex)<T> T_numtype; \
\
static inline T_numtype \
apply(T_numtype1 a, T_numtype2 b) \
{ return fun(a,b); } \
\
template<typename T1, typename T2> \
static inline void prettyPrint(BZ_STD_SCOPE(string) &str, \
BZ_BLITZ_SCOPE(prettyPrintFormat) &format, const T1& t1, \
const T2& t2) \
{ \
str += #fun; \
str += "("; \
t1.prettyPrint(str, format); \
str += ","; \
t2.prettyPrint(str, format); \
str += ")"; \
} \
};
#ifdef BZ_HAVE_COMPLEX_FCNS
BZ_DEFINE_BINARY_FUNC_CRET(Fn_polar,BZ_CMATHFN_SCOPE(polar))
#endif
#endif // BZ_HAVE_COMPLEX
/* Ternary functions that return type based on type promotion */
#define BZ_DEFINE_TERNARY_FUNC(name,fun) \
template <typename P_numtype1, typename P_numtype2, \
typename P_numtype3> \
struct name { \
typedef BZ_PROMOTE(P_numtype1, \
BZ_PROMOTE(P_numtype2,P_numtype3)) T_numtype; \
\
static inline T_numtype \
apply(P_numtype1 x, P_numtype2 y, P_numtype3 z) \
{ return fun(x,y,z); } \
\
template <typename T1, typename T2, typename T3> \
static void prettyPrint(BZ_STD_SCOPE(string) &str, \
BZ_BLITZ_SCOPE(prettyPrintFormat) &format, \
const T1& a,const T2& b, const T3& c) \
{ \
str += #fun; \
str += "("; \
a.prettyPrint(str,format); \
str += ","; \
b.prettyPrint(str,format); \
str += ","; \
c.prettyPrint(str,format); \
str += ")"; \
} \
};
/* Ternary functions that return a specified type */
#define BZ_DEFINE_TERNARY_FUNC_RET(name,fun,ret) \
template <typename P_numtype1, typename P_numtype2, \
typename P_numtype3> \
struct name { \
typedef ret T_numtype; \
\
static inline T_numtype \
apply(P_numtype1 x, P_numtype2 y, P_numtype3 z) \
{ return fun(x,y,z); } \
\
template <typename T1, typename T2, typename T3> \
static void prettyPrint(BZ_STD_SCOPE(string) &str, \
BZ_BLITZ_SCOPE(prettyPrintFormat) &format, \
const T1& a,const T2& b, const T3& c) \
{ \
str += #fun; \
str += "("; \
a.prettyPrint(str,format); \
str += ","; \
b.prettyPrint(str,format); \
str += ","; \
c.prettyPrint(str,format); \
str += ")"; \
} \
};
/* Quaternary functions that return type based on type promotion */
#define BZ_DEFINE_QUATERNARY_FUNC(name,fun) \
template<typename T_numtype1, typename T_numtype2, \
typename T_numtype3, typename T_numtype4> \
struct name { \
typedef BZ_PROMOTE(BZ_PROMOTE(T_numtype1, T_numtype2), \
BZ_PROMOTE(T_numtype3, T_numtype4)) T_numtype; \
\
static inline T_numtype \
apply(const T_numtype1 a, const T_numtype2 b, \
const T_numtype3 c, const T_numtype4 d) \
{ return fun(a,b,c,d); } \
\
template<typename T1, typename T2, \
typename T3, typename T4> \
static inline void prettyPrint(BZ_STD_SCOPE(string) &str, \
BZ_BLITZ_SCOPE(prettyPrintFormat) &format, \
const T1& t1,const T2& t2, const T3& t3, const T4& t4) \
{ \
str += #fun; \
str += "("; \
t1.prettyPrint(str, format); \
str += ","; \
t2.prettyPrint(str, format); \
str += ","; \
t3.prettyPrint(str, format); \
str += ","; \
t4.prettyPrint(str, format); \
str += ")"; \
} \
};
/* These functions don't quite fit the usual patterns */
#ifdef BZ_HAVE_IEEE_MATH
// isnan() Nonzero if NaNS or NaNQ
template<typename T_numtype1>
struct Fn_isnan {
typedef int T_numtype;
static inline T_numtype
apply(T_numtype1 a)
{
#ifdef BZ_ISNAN_IN_NAMESPACE_STD
return BZ_STD_SCOPE(isnan)(a);
#else
return BZ_IEEEMATHFN_SCOPE(isnan)(a);
#endif
}
template<typename T1>
static inline void prettyPrint(BZ_STD_SCOPE(string) &str,
prettyPrintFormat& format, const T1& t1)
{
str += "isnan";
str += "(";
t1.prettyPrint(str, format);
str += ")";
}
};
#endif // BZ_HAVE_IEEE_MATH
// Blitz cast() function
template<typename T_numtype1, typename T_cast>
struct Cast {
typedef T_cast T_numtype;
static inline T_numtype
apply(T_numtype1 a)
{ return T_numtype(a); }
template<typename T1>
static inline void prettyPrint(BZ_STD_SCOPE(string) &str,
prettyPrintFormat& format, const T1& t1)
{
str += BZ_DEBUG_TEMPLATE_AS_STRING_LITERAL(T_cast);
str += "(";
t1.prettyPrint(str, format);
str += ")";
}
};
// Blitz min/max functions
template<typename T_numtype1, typename T_numtype2>
struct Min {
typedef BZ_PROMOTE(T_numtype1, T_numtype2) T_numtype;
static inline T_numtype
apply(T_numtype1 a, T_numtype2 b)
{ return (a < b ? a : b); }
template<typename T1, typename T2>
static inline void prettyPrint(BZ_STD_SCOPE(string) &str,
prettyPrintFormat& format, const T1& t1, const T2& t2)
{
str += "min(";
t1.prettyPrint(str, format);
str += ",";
t2.prettyPrint(str, format);
str += ")";
}
};
template<typename T_numtype1, typename T_numtype2>
struct Max {
typedef BZ_PROMOTE(T_numtype1, T_numtype2) T_numtype;
static inline T_numtype
apply(T_numtype1 a, T_numtype2 b)
{ return (a > b ? a : b); }
template<typename T1, typename T2>
static inline void prettyPrint(BZ_STD_SCOPE(string) &str,
prettyPrintFormat& format, const T1& t1, const T2& t2)
{
str += "max(";
t1.prettyPrint(str, format);
str += ",";
t2.prettyPrint(str, format);
str += ")";
}
};
BZ_NAMESPACE_END
#endif // BZ_FUNCS_H
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