Changes in src/prelude/builtins.c [fe97a7d8:fa4805f]
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src/prelude/builtins.c
rfe97a7d8 rfa4805f 1 //2 // Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo3 //4 // The contents of this file are covered under the licence agreement in the5 // file "LICENCE" distributed with Cforall.6 //7 // builtins.c --8 //9 // Author : Peter A. Buhr10 // Created On : Fri Jul 21 16:21:03 201711 // Last Modified By : Peter A. Buhr12 // Last Modified On : Sat Jul 22 10:34:20 201713 // Update Count : 1314 //15 16 // exception implementation17 18 1 typedef unsigned long long __cfaabi_exception_type_t; 19 2 20 3 #include "../libcfa/exception.h" 21 22 // exponentiation operator implementation23 24 extern "C" {25 float powf( float x, float y );26 double pow( double x, double y );27 long double powl( long double x, long double y );28 float _Complex cpowf( float _Complex x, _Complex float z );29 double _Complex cpow( double _Complex x, _Complex double z );30 long double _Complex cpowl( long double _Complex x, _Complex long double z );31 } // extern "C"32 33 static inline float ?\?( float x, float y ) { return powf( x, y ); }34 static inline double ?\?( double x, double y ) { return pow( x, y ); }35 static inline long double ?\?( long double x, long double y ) { return powl( x, y ); }36 static inline float _Complex ?\?( float _Complex x, _Complex float y ) { return cpowf(x, y ); }37 static inline double _Complex ?\?( double _Complex x, _Complex double y ) { return cpow( x, y ); }38 static inline long double _Complex ?\?( long double _Complex x, _Complex long double y ) { return cpowl( x, y ); }39 40 static inline long int ?\?( long int ep, unsigned long int y ) { // disallow negative exponent41 if ( y == 0 ) return 1; // base case42 if ( ep == 2 ) return ep << (y - 1); // special case, positive shifting only43 typeof( ep ) op = 1; // accumulate odd product44 for ( ; y > 1; y >>= 1 ) { // squaring exponentiation, O(log2 y)45 if ( (y & 1) == 1 ) op *= ep; // odd ?46 ep *= ep;47 } // for48 return ep * op;49 } // ?\?50 51 // FIX ME, cannot resolve the "T op = 1".52 53 // static inline forall( otype T | { void ?{}( T * this, one_t ); T ?*?( T, T ); } )54 // T ?\?( T ep, unsigned long int y ) {55 // if ( y == 0 ) return 1;56 // T op = 1;57 // for ( ; y > 1; y >>= 1 ) { // squaring exponentiation, O(log2 y)58 // if ( (y & 1) == 1 ) op = op * ep; // odd ?59 // ep = ep * ep;60 // } // for61 // return ep * op;62 // } // ?\?63 64 // unsigned computation may be faster and larger65 static inline unsigned long int ?\?( unsigned long int ep, unsigned long int y ) { // disallow negative exponent66 if ( y == 0 ) return 1; // base case67 if ( ep == 2 ) return ep << (y - 1); // special case, positive shifting only68 typeof( ep ) op = 1; // accumulate odd product69 for ( ; y > 1; y >>= 1 ) { // squaring exponentiation, O(log2 y)70 if ( (y & 1) == 1 ) op *= ep; // odd ?71 ep *= ep;72 } // for73 return ep * op;74 } // ?\?75 76 static inline double ?\?( long int x, signed long int y ) { // allow negative exponent77 if ( y >= 0 ) return (double)(x \ (unsigned long int)y);78 else return 1.0 / x \ (unsigned int)(-y);79 } // ?\?80 81 static inline forall( otype T | { void ?{}( T * this, one_t ); T ?*?( T, T ); double ?/?( double, T ); } )82 double ?\?( T x, signed long int y ) {83 if ( y >= 0 ) return (double)(x \ (unsigned long int)y);84 else return 1.0 / x \ (unsigned long int)(-y);85 } // ?\?86 87 static inline long int ?\=?( long int * x, unsigned long int y ) { *x = *x \ y; return *x; }88 static inline unsigned long int ?\=?( unsigned long int * x, unsigned long int y ) { *x = *x \ y; return *x; }89 static inline int ?\=?( int * x, unsigned long int y ) { *x = *x \ y; return *x; }90 static inline unsigned int ?\=?( unsigned int * x, unsigned long int y ) { *x = *x \ y; return *x; }91 92 // Local Variables: //93 // mode: c //94 // tab-width: 4 //95 // End: //
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