write_vec.c

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00001 /*@HEADER
00002 // ***********************************************************************
00003 // 
00004 //       Ifpack: Object-Oriented Algebraic Preconditioner Package
00005 //                 Copyright (2002) Sandia Corporation
00006 // 
00007 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
00008 // license for use of this work by or on behalf of the U.S. Government.
00009 // 
00010 // This library is free software; you can redistribute it and/or modify
00011 // it under the terms of the GNU Lesser General Public License as
00012 // published by the Free Software Foundation; either version 2.1 of the
00013 // License, or (at your option) any later version.
00014 //  
00015 // This library is distributed in the hope that it will be useful, but
00016 // WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00018 // Lesser General Public License for more details.
00019 //  
00020 // You should have received a copy of the GNU Lesser General Public
00021 // License along with this library; if not, write to the Free Software
00022 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00023 // USA
00024 // Questions? Contact Michael A. Heroux (maherou@sandia.gov) 
00025 // 
00026 // ***********************************************************************
00027 //@HEADER
00028 */
00029 
00030 #include <stdlib.h>
00031 #include <stdio.h>
00032 
00033 void write_vec(const char *filename, int n_equations,double *x)
00034  
00035 /*  write ASCII data file:
00036 */
00037 
00038 {
00039   FILE *out_file ;
00040   int i;
00041 
00042  
00043   if ( (out_file = fopen( filename, "w")) == NULL ) {
00044     fprintf(stderr,"Error: Cannot open file: %s\n",filename);
00045     return;
00046   }
00047  
00048   for (i=0; i< n_equations; i++)
00049   fprintf(out_file, "%20.15e\n", x[i]) ;
00050 
00051   fclose(out_file);
00052 
00053 /* end write_vec */
00054 }
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