compile error on simple code , plz help

[eric lin]

eric@eric-laptop:~/practicalCpp$ g++ fixed_pt.cpp fixed_test.cpp
In file included from fixed_pt.cpp:3:
fixed_pt.h:211: error: ‘fixed_pt::fixed_pt fixed_pt::fixed_pt::operator+(const fixed_pt::fixed_pt&, const fixed_pt::fixed_pt&)’ must take either zero or one argument
fixed_pt.h:216: error: ‘fixed_pt::fixed_pt fixed_pt::fixed_pt::operator+(const fixed_pt::fixed_pt&, double)’ must take either zero or one argument
fixed_pt.h:221: error: ‘fixed_pt::fixed_pt fixed_pt::fixed_pt::operator+(double, const fixed_pt::fixed_pt&)’ must take either zero or one argument
fixed_pt.h:226: error: ‘fixed_pt::fixed_pt fixed_pt::fixed_pt::operator-(const fixed_pt::fixed_pt&, const fixed_pt::fixed_pt&)’ must take either zero or one argument
fixed_pt.h:231: error: ‘fixed_pt::fixed_pt fixed_pt::fixed_pt::operator-(const fixed_pt::fixed_pt&, double)’ must take either zero or one argument
fixed_pt.h:236: error: ‘fixed_pt::fixed_pt fixed_pt::fixed_pt::operator-(double, const fixed_pt::fixed_pt&)’ must take either zero or one argument
fixed_pt.h:241: error: ‘fixed_pt::fixed_pt fixed_pt::fixed_pt::operator*(const fixed_pt::fixed_pt&, const fixed_pt::fixed_pt&)’ must take either zero or one argument
fixed_pt.h:246: error: ‘fixed_pt::fixed_pt fixed_pt::fixed_pt::operator*(const fixed_pt::fixed_pt&, double)’ must take either zero or one argument
-------------------
I just copy a couple lines of compiler result from my g++
all three files fixed_pt
                fixed_test
are copied from a book
practical c++ programming

so plz help
sincerely, Eric Lin, in USA-US citizen
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