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

1.1       root        1: class istream;
                      2: class ostream;
                      3: 
                      4: struct common {
                      5:        virtual int     cmp(common& oo) { return this==&oo; }
                      6:                /* cmp performs a three way comparison if an ordering exists:
                      7:                        this==arg: return 0,
                      8:                        this<arg:  return negative,
                      9:                        this>arg:  return positive
                     10:                   otherwise
                     11:                        this==arg: return 0,
                     12:                        this!=arg: return non-zero
                     13:                */
                     14:        virtual int operator==(common& oo) { return this==&oo; }
                     15:        virtual char*   swho() { return 0; }
                     16:        virtual int     iwho() { return 0; }
                     17:        virtual int     size() { return sizeof(common); }
                     18:        virtual ostream&        write(ostream& s) { return s;}
                     19:        virtual istream&        read(istream& s) { return s; }
                     20:                common() {}
                     21: };

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