/usr/include/fflas-ffpack/utils/Matio.h is in fflas-ffpack-common 1.6.0-1.
This file is owned by root:root, with mode 0o644.
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// vim:sts=8:sw=8:ts=8:noet:sr:cino=>s,f0,{0,g0,(0,\:0,t0,+0,=s
/* Copyright (C) LinBox,FFLAS-FFPACK
*
* ========LICENCE========
* This file is part of the library FFLAS-FFPACK.
*
* FFLAS-FFPACK is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
* ========LICENCE========
*/
#ifndef __FFLASFFPACK_matio_H
#define __FFLASFFPACK_matio_H
#include <cstring>
#include <stdio.h>
#include <stdlib.h>
#include "fflas-ffpack/fflas/fflas.h"
// Reading and writing matrices over double
#if 0
// Reading a matrice from a (eventually zipped) file
double * read_dbl(char * mat_file,int* tni,int* tnj)
{
char *UT, *File_Name;
int is_gzipped = 0;
size_t s = strlen(mat_file);
double* X;
if ((mat_file[--s] == 'z') &&
(mat_file[--s] == 'g') &&
(mat_file[--s] == '.')) {
is_gzipped = 1;
File_Name = "/tmp/bbXXXXXX_";
mkstemp(File_Name);
UT = new char[s+34+strlen(File_Name)];
sprintf(UT,"gunzip -c %s > %s", mat_file, File_Name);
system(UT);
sprintf(UT,"\\rm %s", File_Name);
} else
File_Name = mat_file;
FILE* FileDes = fopen(File_Name, "r");
if (FileDes != NULL) {
char * tmp = new char[200];// usigned long tni, tnj;
fscanf(FileDes,"%d %d %s\n",tni, tnj, &tmp) ;
int n=*tni;
int p=*tnj;
X = new double[n*p];
for (int i=0;i<n*p;++i)
X[i] = (double) 0;
long i,j; long val;
fscanf(FileDes,"%ld %ld %ld\n",&i, &j, &val) ;
while(i && j) {
X[p*(i-1)+j-1] = (double) val;
fscanf(FileDes,"%ld %ld %ld\n",&i, &j, &val) ;
}
}
fclose(FileDes);
if (is_gzipped) system(UT);
return X;
}
// Displays a matrix
std::ostream& write_dbl(std::ostream& c,
double* E,
int n, int m, int id)
{
for (int i = 0; i<n;++i){
for (int j=0; j<m;++j)
c << *(E+j+id*i) << " ";
c << std::endl;
}
return c << std::endl;
}
#endif
// Reading and writing matrices over field
// Reading a matrice from a (eventually zipped) file
template<class Field>
typename Field::Element * read_field(const Field& F,char * mat_file,int* tni,int* tnj)
{
char *UT, *File_Name;
int is_gzipped = 0;
size_t s = strlen(mat_file);
typename Field::Element zero;
F.init(zero,0UL);
typename Field::Element * X = NULL;
if ((mat_file[--s] == 'z') &&
(mat_file[--s] == 'g') &&
(mat_file[--s] == '.')) {
is_gzipped = 1;
char tmp_nam[] = "/tmp/bbXXXXXX_";
File_Name = tmp_nam;
mkstemp(File_Name);
UT = new char[s+34+strlen(File_Name)];
sprintf(UT,"gunzip -c %s > %s", mat_file, File_Name);
system(UT);
sprintf(UT,"\\rm %s", File_Name);
} else
File_Name = mat_file;
FILE* FileDes = fopen(File_Name, "r");
if (FileDes != NULL) {
char tmp [200];// usigned long tni, tnj;
fscanf(FileDes,"%d %d %s\n",tni, tnj, tmp) ;
int n=*tni;
int p=*tnj;
X = new typename Field::Element[n*p];
for (int i=0;i<n*p;++i)
X[i] = zero;
long i,j; long val;
fscanf(FileDes,"%ld %ld %ld\n",&i, &j, &val) ;
while(i && j) {
F.init(X[p*(i-1)+j-1],val);
fscanf(FileDes,"%ld %ld %ld\n",&i, &j, &val) ;
}
}
fclose(FileDes);
if (is_gzipped) system(UT);
return X;
}
template<class Field>
void read_field4(const Field& F,char * mat_file,int* tni,int* tnj,
typename Field::Element *& NW,typename Field::Element *& NE,
typename Field::Element *& SW,typename Field::Element *& SE)
{
char *UT, *File_Name;
int is_gzipped = 0;
size_t s = strlen(mat_file);
typename Field::Element zero;
F.init(zero,0);
typename Field::Element * X;
if ((mat_file[--s] == 'z') &&
(mat_file[--s] == 'g') &&
(mat_file[--s] == '.')) {
is_gzipped = 1;
// XXX on fait pas ça !
File_Name = "/tmp/bbXXXXXX_";
mkstemp(File_Name);
UT = new char[s+34+strlen(File_Name)];
sprintf(UT,"gunzip -c %s > %s", mat_file, File_Name);
system(UT);
sprintf(UT,"\\rm %s", File_Name);
} else
File_Name = mat_file;
FILE* FileDes = fopen(File_Name, "r");
if (FileDes != NULL) {
char * tmp = new char[200];// usigned long tni, tnj;
fscanf(FileDes,"%d %d %s\n",tni, tnj, &tmp) ;
int n=*tni;
int p=*tnj;
int no2= n>>1;
int po2 = p>>1;
NW = new typename Field::Element[no2*po2];
NE = new typename Field::Element[no2*(p-po2)];
SW = new typename Field::Element[(n-no2)*po2];
SE = new typename Field::Element[(n-no2)*(p-po2)];
for (int i=0;i<no2*po2;++i)
NW[i] = zero;
for (int i=0;i<no2*(p-po2);++i)
NE[i] = zero;
for (int i=0;i<(n-no2)*po2;++i)
SW[i] = zero;
for (int i=0;i<(n-no2)*(p-po2);++i)
SE[i] = zero;
long i,j; long val;
fscanf(FileDes,"%ld %ld %ld\n",&i, &j, &val) ;
while(i && j) {
if (i<=no2){
if (j<=po2){
F.init(NW[po2*(i-1)+j-1],val);
fscanf(FileDes,"%ld %ld %ld\n",&i, &j, &val) ;
}
else{
F.init(NE[po2*(i-1)+j-1-po2],val);
fscanf(FileDes,"%ld %ld %ld\n",&i, &j, &val) ;
}
}
else{
if (j<=po2){
F.init(SW[(p-po2)*(i-1-no2)+j-1],val);
fscanf(FileDes,"%ld %ld %ld\n",&i, &j, &val) ;
}
else{
F.init(SE[(p-po2)*(i-1-no2)+j-1-po2],val);
fscanf(FileDes,"%ld %ld %ld\n",&i, &j, &val) ;
}
}
}
// *A1 = NW;
//*A2 = NE;
//*A3 = SW;
//*A4 = SE;
}
fclose(FileDes);
if (is_gzipped) system(UT);
}
// Displays a matrix
template<class Field>
std::ostream& write_field(const Field& F,std::ostream& c,
const typename Field::Element* E,
int n, int m, int id, bool mapleFormat = false)
{
double tmp;
if (mapleFormat) c << "Matrix(" << n <<',' << m << ", [" ;
for (int i = 0; i<n;++i){
if (mapleFormat) c << '[';
for (int j=0; j<m;++j){
F.convert(tmp,*(E+j+id*i));
c << tmp;
if (mapleFormat && j<m-1) c << ',';
c << ' ';
}
if (mapleFormat) c << ']';
if (mapleFormat && i<n-1) c << ',';
if (!mapleFormat) c << std::endl;
}
if (mapleFormat) c << "])";
return c ;
}
// Displays a triangular matrix
//! @todo let the user choose to convert to a non destructive format (not double but long or Integer...)
template<class Field>
std::ostream& write_field(const Field& F,std::ostream& c,
const FFLAS::FFLAS_UPLO uplo, const FFLAS::FFLAS_DIAG unit,
const typename Field::Element* E,
int n, int m, int id, bool mapleFormat = false)
{
double tmp;
if (mapleFormat) c << "Matrix(" << n <<',' << m << ",[";
for (int i = 0; i<n;++i){
if (mapleFormat) c << '[';
// under diag
for (int j=0; j<i ;++j){
if (uplo == FFLAS::FflasLower)
F.convert(tmp,*(E+j+id*i));
else tmp = 0 ;
c << tmp;
if (mapleFormat && j<m-1) c << ',';
c << ' ';
}
// on diag
if (unit == FFLAS::FflasNonUnit)
F.convert(tmp,*(E+i+id*i));
else
tmp = 1.;
c << tmp;
if (mapleFormat && i<m-1) c << ',';
c << ' ';
// over diag
for (int j=i+1; j<m;++j){
if (uplo == FFLAS::FflasUpper)
F.convert(tmp,*(E+j+id*i));
else
tmp = 0 ;
c << tmp;
if (mapleFormat && j<m-1) c << ',';
c << ' ';
}
if (mapleFormat) c << ']';
if (mapleFormat && i<n-1) c << ',';
if (!mapleFormat) c << std::endl;
}
if (mapleFormat) c << "])";
return c ;
}
#endif //__FFLASFFPACK_matio_H
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