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Annotation of researchv9/cmd/cfront/CC/complex.h, revision 1.1.1.1

1.1       root        1: 
                      2: #include <stream.h>
                      3: #include <errno.h>
                      4: 
                      5: overload cos;
                      6: overload cosh;
                      7: overload exp;
                      8: overload log;
                      9: overload pow;
                     10: overload sin;
                     11: overload sinh;
                     12: overload sqrt;
                     13: overload abs;
                     14: 
                     15: #include <math.h>
                     16: inline double abs(double d) { return fabs(d); }
                     17: 
                     18: class complex {
                     19:        double  re, im;
                     20: public:
                     21:        complex(double r, double i)     { re=r; im=i; }
                     22:        complex(double r)               { re=r; im=0; }
                     23:        complex()                       { re=0; im=0; }
                     24:                
                     25:        friend  double  real(const complex& a ) { return a.re; }
                     26:        friend  double  imag(const complex& a ) { return a.im; }
                     27: 
                     28:        friend  double  abs(complex);
                     29:        friend  double  norm(complex);
                     30:        friend  double  arg(complex);
                     31:        friend  complex conj(complex a) { return complex(a.re, -a.im); }
                     32:        friend  complex cos(complex);
                     33:        friend  complex cosh(complex);
                     34:        friend  complex exp(complex);
                     35:        friend  complex log(complex);
                     36:        friend  complex pow(double, complex);
                     37:        friend  complex pow(complex, int);
                     38:        friend  complex pow(complex, double);
                     39:        friend  complex pow(complex, complex);
                     40:        friend  complex polar(double, double = 0);
                     41:        friend  complex sin(complex);
                     42:        friend  complex sinh(complex);
                     43:        friend  complex sqrt(complex);
                     44: 
                     45:        friend complex  operator+(complex a1, complex a2)
                     46:        {
                     47:                return complex(a1.re+a2.re, a1.im+a2.im);
                     48:        }
                     49:        friend complex  operator-(complex a1, complex a2)
                     50:        {
                     51:                return complex(a1.re-a2.re, a1.im-a2.im);
                     52:        }
                     53:        friend complex  operator-(complex a) { return complex(-a.re, -a.im); }
                     54:        friend complex  operator*(complex, complex);
                     55:        friend complex  operator/(complex, complex);
                     56:        friend int      operator==(complex a, complex b)
                     57:        {
                     58:                return a.re==b.re && a.im==b.im;
                     59:        }
                     60:        friend int      operator!=(complex a, complex b)
                     61:        {
                     62:                return a.re!=b.re || a.im!=b.im;
                     63:        }
                     64:        friend int      operator==(complex, complex);
                     65:        friend int      operator!=(complex, complex);
                     66:        
                     67:        void operator+=(complex a) { re += a.re; im += a.im; }
                     68:        void operator-=(complex a) { re -= a.re; im -= a.im; }
                     69:        void operator*=(complex);
                     70:        void operator/=(complex);
                     71: };
                     72: 
                     73: ostream& operator<<(ostream&, complex);
                     74: istream& operator>>(istream&, complex&);
                     75: 
                     76: void complex_error(int,double);
                     77: extern int errno;
                     78: 

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