Vec3.cpp

00001 /*
00002     File:           Vec3.cpp
00003 
00004     Function:       Implements Vec3.h
00005 
00006     Author(s):      Andrew Willmott
00007 
00008     Copyright:      (c) 1995-2001, Andrew Willmott
00009 
00010 */
00011 
00012 
00013 #include "Vec3.h"
00014 //#include <cctype>
00015 //#include <iomanip>
00016 
00017 /*
00018 ostream &operator << (ostream &s, const Vec3 &v)
00019 {
00020     Int w = s.width();
00021 
00022     return(s << '[' << v[0] << ' ' << setw(w) << v[1] << ' ' << setw(w) << v[2] << ']');
00023 }
00024 
00025 istream &operator >> (istream &s, Vec3 &v)
00026 {
00027     Vec3    result;
00028     Char    c;
00029 
00030     // Expected format: [1 2 3]
00031 
00032     while (s >> c && isspace(c))
00033         ;
00034 
00035     if (c == '[')
00036     {
00037         s >> result[0] >> result[1] >> result[2];
00038 
00039         if (!s)
00040         {
00041             cerr << "Error: Expected number while reading vector\n";
00042             return(s);
00043         }
00044 
00045         while (s >> c && isspace(c))
00046             ;
00047 
00048         if (c != ']')
00049         {
00050             s.clear(ios::failbit);
00051             cerr << "Error: Expected ']' while reading vector\n";
00052             return(s);
00053         }
00054     }
00055     else
00056     {
00057         s.clear(ios::failbit);
00058         cerr << "Error: Expected '[' while reading vector\n";
00059         return(s);
00060     }
00061 
00062     v = result;
00063     return(s);
00064 }
00065 */