core/vnl/io/vnl_io_vector.txx Source File

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00001 // This is core/vnl/io/vnl_io_vector.txx
00002 #ifndef vnl_io_vector_txx_
00003 #define vnl_io_vector_txx_
00004 //:
00005 // \file
00006 
00007 #include "vnl_io_vector.h"
00008 #include <vsl/vsl_binary_io.h>
00009 #include <vsl/vsl_b_read_block_old.h>
00010 #include <vsl/vsl_block_binary.h>
00011 
00012 //=================================================================================
00013 //: Binary save self to stream.
00014 template<class T>
00015 void vsl_b_write(vsl_b_ostream & os, const vnl_vector<T> & p)
00016 {
00017   const short io_version_no = 2;
00018   vsl_b_write(os, io_version_no);
00019   vsl_b_write(os, p.size());
00020   if (p.size())
00021     vsl_block_binary_write(os, p.begin(), p.size());
00022 }
00023 
00024 //=================================================================================
00025 //: Binary load self from stream.
00026 template<class T>
00027 void vsl_b_read(vsl_b_istream &is, vnl_vector<T> & p)
00028 {
00029   if (!is) return;
00030 
00031   short ver;
00032   unsigned n;
00033   vsl_b_read(is, ver);
00034   switch (ver)
00035   {
00036    case 1:
00037     vsl_b_read(is, n);
00038     p.set_size(n);
00039     if (n)
00040       vsl_b_read_block_old(is, p.data_block(), n);
00041     break;
00042 
00043    case 2:
00044     vsl_b_read(is, n);
00045     p.set_size(n);
00046     if (n)
00047       vsl_block_binary_read(is, p.data_block(), n);
00048     break;
00049 
00050    default:
00051     vcl_cerr << "I/O ERROR: vsl_b_read(vsl_b_istream&, vnl_vector<T>&)\n"
00052              << "           Unknown version number "<< ver << '\n';
00053     is.is().clear(vcl_ios::badbit); // Set an unrecoverable IO error on stream
00054     return;
00055   }
00056 }
00057 
00058 //====================================================================================
00059 //: Output a human readable summary to the stream
00060 template<class T>
00061 void vsl_print_summary(vcl_ostream & os,const vnl_vector<T> & p)
00062 {
00063   os<<"Len: "<<p.size()<<" (";
00064   for ( unsigned int i =0; i < p.size() && i < 5; ++i )
00065     os << p.operator()(i) <<' ';
00066   if (p.size() > 5) os << " ...";
00067   os << ')';
00068 }
00069 
00070 #define VNL_IO_VECTOR_INSTANTIATE(T) \
00071 template void vsl_print_summary(vcl_ostream &, const vnl_vector<T > &); \
00072 template void vsl_b_read(vsl_b_istream &, vnl_vector<T > &); \
00073 template void vsl_b_write(vsl_b_ostream &, const vnl_vector<T > &)
00074 
00075 #endif // vnl_io_vector_txx_