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dos2unix
This commit is contained in:
Benoit Jacob
parent
e868b6736a
commit
139392488d
@ -1,408 +1,408 @@
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/*
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/*
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Multi-precision real number class. C++ wrapper fo MPFR library.
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Multi-precision real number class. C++ wrapper fo MPFR library.
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Project homepage: http://www.holoborodko.com/pavel/
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Project homepage: http://www.holoborodko.com/pavel/
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Contact e-mail: pavel@holoborodko.com
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Contact e-mail: pavel@holoborodko.com
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Copyright (c) 2008-2010 Pavel Holoborodko
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Copyright (c) 2008-2010 Pavel Holoborodko
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This library is free software; you can redistribute it and/or
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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Contributors:
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Contributors:
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Brian Gladman, Helmut Jarausch, Fokko Beekhof, Ulrich Mutze,
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Brian Gladman, Helmut Jarausch, Fokko Beekhof, Ulrich Mutze,
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Heinz van Saanen, Pere Constans, Dmitriy Gubanov
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Heinz van Saanen, Pere Constans, Dmitriy Gubanov
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*/
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*/
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#include <cstring>
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#include <cstring>
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#include "mpreal.h"
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#include "mpreal.h"
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using std::ws;
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using std::ws;
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using std::cerr;
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using std::cerr;
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using std::endl;
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using std::endl;
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using std::string;
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using std::string;
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using std::ostream;
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using std::ostream;
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using std::istream;
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using std::istream;
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namespace mpfr{
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namespace mpfr{
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mp_rnd_t mpreal::default_rnd = mpfr_get_default_rounding_mode();
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mp_rnd_t mpreal::default_rnd = mpfr_get_default_rounding_mode();
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mp_prec_t mpreal::default_prec = mpfr_get_default_prec();
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mp_prec_t mpreal::default_prec = mpfr_get_default_prec();
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int mpreal::default_base = 10;
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int mpreal::default_base = 10;
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int mpreal::double_bits = -1;
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int mpreal::double_bits = -1;
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// Default constructor: creates mp number and initializes it to 0.
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// Default constructor: creates mp number and initializes it to 0.
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mpreal::mpreal()
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mpreal::mpreal()
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{
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{
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mpfr_init2(mp,default_prec);
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mpfr_init2(mp,default_prec);
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mpfr_set_ui(mp,0,default_rnd);
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mpfr_set_ui(mp,0,default_rnd);
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}
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}
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mpreal::mpreal(const mpreal& u)
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mpreal::mpreal(const mpreal& u)
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{
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{
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mpfr_init2(mp,mpfr_get_prec(u.mp));
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mpfr_init2(mp,mpfr_get_prec(u.mp));
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mpfr_set(mp,u.mp,default_rnd);
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mpfr_set(mp,u.mp,default_rnd);
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}
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}
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mpreal::mpreal(const mpfr_t u)
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mpreal::mpreal(const mpfr_t u)
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{
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{
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mpfr_init2(mp,mpfr_get_prec(u));
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mpfr_init2(mp,mpfr_get_prec(u));
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mpfr_set(mp,u,default_rnd);
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mpfr_set(mp,u,default_rnd);
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}
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}
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mpreal::mpreal(const mpf_t u)
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mpreal::mpreal(const mpf_t u)
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{
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{
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mpfr_init2(mp,mpf_get_prec(u));
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mpfr_init2(mp,mpf_get_prec(u));
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mpfr_set_f(mp,u,default_rnd);
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mpfr_set_f(mp,u,default_rnd);
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}
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}
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mpreal::mpreal(const mpz_t u, mp_prec_t prec, mp_rnd_t mode)
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mpreal::mpreal(const mpz_t u, mp_prec_t prec, mp_rnd_t mode)
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{
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{
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mpfr_init2(mp,prec);
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mpfr_init2(mp,prec);
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mpfr_set_z(mp,u,mode);
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mpfr_set_z(mp,u,mode);
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}
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}
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mpreal::mpreal(const mpq_t u, mp_prec_t prec, mp_rnd_t mode)
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mpreal::mpreal(const mpq_t u, mp_prec_t prec, mp_rnd_t mode)
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{
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{
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mpfr_init2(mp,prec);
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mpfr_init2(mp,prec);
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mpfr_set_q(mp,u,mode);
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mpfr_set_q(mp,u,mode);
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}
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}
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mpreal::mpreal(const double u, mp_prec_t prec, mp_rnd_t mode)
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mpreal::mpreal(const double u, mp_prec_t prec, mp_rnd_t mode)
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{
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{
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if(double_bits == -1 || fits_in_bits(u, double_bits))
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if(double_bits == -1 || fits_in_bits(u, double_bits))
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{
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{
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mpfr_init2(mp,prec);
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mpfr_init2(mp,prec);
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mpfr_set_d(mp,u,mode);
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mpfr_set_d(mp,u,mode);
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}
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}
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else
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else
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throw conversion_overflow();
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throw conversion_overflow();
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}
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}
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mpreal::mpreal(const long double u, mp_prec_t prec, mp_rnd_t mode)
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mpreal::mpreal(const long double u, mp_prec_t prec, mp_rnd_t mode)
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{
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{
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mpfr_init2(mp,prec);
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mpfr_init2(mp,prec);
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mpfr_set_ld(mp,u,mode);
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mpfr_set_ld(mp,u,mode);
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}
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}
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mpreal::mpreal(const unsigned long int u, mp_prec_t prec, mp_rnd_t mode)
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mpreal::mpreal(const unsigned long int u, mp_prec_t prec, mp_rnd_t mode)
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{
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{
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mpfr_init2(mp,prec);
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mpfr_init2(mp,prec);
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mpfr_set_ui(mp,u,mode);
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mpfr_set_ui(mp,u,mode);
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}
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}
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mpreal::mpreal(const unsigned int u, mp_prec_t prec, mp_rnd_t mode)
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mpreal::mpreal(const unsigned int u, mp_prec_t prec, mp_rnd_t mode)
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{
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{
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mpfr_init2(mp,prec);
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mpfr_init2(mp,prec);
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mpfr_set_ui(mp,u,mode);
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mpfr_set_ui(mp,u,mode);
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}
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}
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mpreal::mpreal(const long int u, mp_prec_t prec, mp_rnd_t mode)
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mpreal::mpreal(const long int u, mp_prec_t prec, mp_rnd_t mode)
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{
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{
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mpfr_init2(mp,prec);
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mpfr_init2(mp,prec);
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mpfr_set_si(mp,u,mode);
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mpfr_set_si(mp,u,mode);
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}
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}
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mpreal::mpreal(const int u, mp_prec_t prec, mp_rnd_t mode)
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mpreal::mpreal(const int u, mp_prec_t prec, mp_rnd_t mode)
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{
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{
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mpfr_init2(mp,prec);
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mpfr_init2(mp,prec);
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mpfr_set_si(mp,u,mode);
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mpfr_set_si(mp,u,mode);
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}
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}
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mpreal::mpreal(const char* s, mp_prec_t prec, int base, mp_rnd_t mode)
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mpreal::mpreal(const char* s, mp_prec_t prec, int base, mp_rnd_t mode)
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{
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{
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mpfr_init2(mp,prec);
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mpfr_init2(mp,prec);
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mpfr_set_str(mp, s, base, mode);
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mpfr_set_str(mp, s, base, mode);
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}
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}
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mpreal::~mpreal()
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mpreal::~mpreal()
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{
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{
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mpfr_clear(mp);
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mpfr_clear(mp);
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}
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}
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// Operators - Assignment
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// Operators - Assignment
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mpreal& mpreal::operator=(const char* s)
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mpreal& mpreal::operator=(const char* s)
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{
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{
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mpfr_t t;
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mpfr_t t;
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if(0==mpfr_init_set_str(t,s,default_base,default_rnd))
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if(0==mpfr_init_set_str(t,s,default_base,default_rnd))
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{
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{
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mpfr_set(mp,t,mpreal::default_rnd);
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mpfr_set(mp,t,mpreal::default_rnd);
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mpfr_clear(t);
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mpfr_clear(t);
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}else{
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}else{
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mpfr_clear(t);
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mpfr_clear(t);
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// cerr<<"fail to convert string"<<endl;
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// cerr<<"fail to convert string"<<endl;
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}
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}
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return *this;
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return *this;
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}
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}
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const mpreal fma (const mpreal& v1, const mpreal& v2, const mpreal& v3, mp_rnd_t rnd_mode)
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const mpreal fma (const mpreal& v1, const mpreal& v2, const mpreal& v3, mp_rnd_t rnd_mode)
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{
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{
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mpreal a;
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mpreal a;
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mp_prec_t p1, p2, p3;
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mp_prec_t p1, p2, p3;
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p1 = v1.get_prec();
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p1 = v1.get_prec();
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p2 = v2.get_prec();
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p2 = v2.get_prec();
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p3 = v3.get_prec();
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p3 = v3.get_prec();
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a.set_prec(p3>p2?(p3>p1?p3:p1):(p2>p1?p2:p1));
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a.set_prec(p3>p2?(p3>p1?p3:p1):(p2>p1?p2:p1));
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mpfr_fma(a.mp,v1.mp,v2.mp,v3.mp,rnd_mode);
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mpfr_fma(a.mp,v1.mp,v2.mp,v3.mp,rnd_mode);
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return a;
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return a;
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}
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}
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const mpreal fms (const mpreal& v1, const mpreal& v2, const mpreal& v3, mp_rnd_t rnd_mode)
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const mpreal fms (const mpreal& v1, const mpreal& v2, const mpreal& v3, mp_rnd_t rnd_mode)
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{
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{
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mpreal a;
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mpreal a;
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mp_prec_t p1, p2, p3;
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mp_prec_t p1, p2, p3;
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p1 = v1.get_prec();
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p1 = v1.get_prec();
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p2 = v2.get_prec();
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p2 = v2.get_prec();
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p3 = v3.get_prec();
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p3 = v3.get_prec();
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a.set_prec(p3>p2?(p3>p1?p3:p1):(p2>p1?p2:p1));
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a.set_prec(p3>p2?(p3>p1?p3:p1):(p2>p1?p2:p1));
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mpfr_fms(a.mp,v1.mp,v2.mp,v3.mp,rnd_mode);
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mpfr_fms(a.mp,v1.mp,v2.mp,v3.mp,rnd_mode);
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return a;
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return a;
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}
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}
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const mpreal agm (const mpreal& v1, const mpreal& v2, mp_rnd_t rnd_mode)
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const mpreal agm (const mpreal& v1, const mpreal& v2, mp_rnd_t rnd_mode)
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{
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{
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mpreal a;
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mpreal a;
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mp_prec_t p1, p2;
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mp_prec_t p1, p2;
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p1 = v1.get_prec();
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p1 = v1.get_prec();
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p2 = v2.get_prec();
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p2 = v2.get_prec();
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a.set_prec(p1>p2?p1:p2);
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a.set_prec(p1>p2?p1:p2);
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mpfr_agm(a.mp, v1.mp, v2.mp, rnd_mode);
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mpfr_agm(a.mp, v1.mp, v2.mp, rnd_mode);
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return a;
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return a;
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}
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}
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const mpreal hypot (const mpreal& x, const mpreal& y, mp_rnd_t rnd_mode)
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const mpreal hypot (const mpreal& x, const mpreal& y, mp_rnd_t rnd_mode)
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{
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{
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mpreal a;
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mpreal a;
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mp_prec_t yp, xp;
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mp_prec_t yp, xp;
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yp = y.get_prec();
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yp = y.get_prec();
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xp = x.get_prec();
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xp = x.get_prec();
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a.set_prec(yp>xp?yp:xp);
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a.set_prec(yp>xp?yp:xp);
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mpfr_hypot(a.mp, x.mp, y.mp, rnd_mode);
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mpfr_hypot(a.mp, x.mp, y.mp, rnd_mode);
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return a;
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return a;
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}
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}
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|
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const mpreal sum (const mpreal tab[], unsigned long int n, mp_rnd_t rnd_mode)
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const mpreal sum (const mpreal tab[], unsigned long int n, mp_rnd_t rnd_mode)
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{
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{
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mpreal x;
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mpreal x;
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mpfr_ptr* t;
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mpfr_ptr* t;
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unsigned long int i;
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unsigned long int i;
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|
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t = new mpfr_ptr[n];
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t = new mpfr_ptr[n];
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for (i=0;i<n;i++) t[i] = (mpfr_ptr)tab[i].mp;
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for (i=0;i<n;i++) t[i] = (mpfr_ptr)tab[i].mp;
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mpfr_sum(x.mp,t,n,rnd_mode);
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mpfr_sum(x.mp,t,n,rnd_mode);
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delete[] t;
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delete[] t;
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return x;
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return x;
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}
|
}
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|
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const mpreal remainder (const mpreal& x, const mpreal& y, mp_rnd_t rnd_mode)
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const mpreal remainder (const mpreal& x, const mpreal& y, mp_rnd_t rnd_mode)
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{
|
{
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mpreal a;
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mpreal a;
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mp_prec_t yp, xp;
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mp_prec_t yp, xp;
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|
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yp = y.get_prec();
|
yp = y.get_prec();
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xp = x.get_prec();
|
xp = x.get_prec();
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|
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a.set_prec(yp>xp?yp:xp);
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a.set_prec(yp>xp?yp:xp);
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|
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mpfr_remainder(a.mp, x.mp, y.mp, rnd_mode);
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mpfr_remainder(a.mp, x.mp, y.mp, rnd_mode);
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|
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return a;
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return a;
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}
|
}
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|
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const mpreal remquo (long* q, const mpreal& x, const mpreal& y, mp_rnd_t rnd_mode)
|
const mpreal remquo (long* q, const mpreal& x, const mpreal& y, mp_rnd_t rnd_mode)
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{
|
{
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mpreal a;
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mpreal a;
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mp_prec_t yp, xp;
|
mp_prec_t yp, xp;
|
||||||
|
|
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yp = y.get_prec();
|
yp = y.get_prec();
|
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xp = x.get_prec();
|
xp = x.get_prec();
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||||||
|
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a.set_prec(yp>xp?yp:xp);
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a.set_prec(yp>xp?yp:xp);
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|
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mpfr_remquo(a.mp,q, x.mp, y.mp, rnd_mode);
|
mpfr_remquo(a.mp,q, x.mp, y.mp, rnd_mode);
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|
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return a;
|
return a;
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}
|
}
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|
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||||||
template <class T>
|
template <class T>
|
||||||
std::string to_string(T t, std::ios_base & (*f)(std::ios_base&))
|
std::string to_string(T t, std::ios_base & (*f)(std::ios_base&))
|
||||||
{
|
{
|
||||||
std::ostringstream oss;
|
std::ostringstream oss;
|
||||||
oss << f << t;
|
oss << f << t;
|
||||||
return oss.str();
|
return oss.str();
|
||||||
}
|
}
|
||||||
|
|
||||||
mpreal::operator std::string() const
|
mpreal::operator std::string() const
|
||||||
{
|
{
|
||||||
return to_string();
|
return to_string();
|
||||||
}
|
}
|
||||||
|
|
||||||
string mpreal::to_string(size_t n, int b, mp_rnd_t mode) const
|
string mpreal::to_string(size_t n, int b, mp_rnd_t mode) const
|
||||||
{
|
{
|
||||||
char *s, *ns = NULL;
|
char *s, *ns = NULL;
|
||||||
size_t slen, nslen;
|
size_t slen, nslen;
|
||||||
mp_exp_t exp;
|
mp_exp_t exp;
|
||||||
string out;
|
string out;
|
||||||
|
|
||||||
if(mpfr_inf_p(mp))
|
if(mpfr_inf_p(mp))
|
||||||
{
|
{
|
||||||
if(mpfr_sgn(mp)>0) return "+@Inf@";
|
if(mpfr_sgn(mp)>0) return "+@Inf@";
|
||||||
else return "-@Inf@";
|
else return "-@Inf@";
|
||||||
}
|
}
|
||||||
|
|
||||||
if(mpfr_zero_p(mp)) return "0";
|
if(mpfr_zero_p(mp)) return "0";
|
||||||
if(mpfr_nan_p(mp)) return "@NaN@";
|
if(mpfr_nan_p(mp)) return "@NaN@";
|
||||||
|
|
||||||
|
|
||||||
s = mpfr_get_str(NULL,&exp,b,0,mp,mode);
|
s = mpfr_get_str(NULL,&exp,b,0,mp,mode);
|
||||||
ns = mpfr_get_str(NULL,&exp,b,n,mp,mode);
|
ns = mpfr_get_str(NULL,&exp,b,n,mp,mode);
|
||||||
|
|
||||||
if(s!=NULL && ns!=NULL)
|
if(s!=NULL && ns!=NULL)
|
||||||
{
|
{
|
||||||
slen = strlen(s);
|
slen = strlen(s);
|
||||||
nslen = strlen(ns);
|
nslen = strlen(ns);
|
||||||
if(nslen<=slen)
|
if(nslen<=slen)
|
||||||
{
|
{
|
||||||
mpfr_free_str(s);
|
mpfr_free_str(s);
|
||||||
s = ns;
|
s = ns;
|
||||||
slen = nslen;
|
slen = nslen;
|
||||||
}
|
}
|
||||||
else {
|
else {
|
||||||
mpfr_free_str(ns);
|
mpfr_free_str(ns);
|
||||||
}
|
}
|
||||||
|
|
||||||
// Make human eye-friendly formatting if possible
|
// Make human eye-friendly formatting if possible
|
||||||
if (exp>0 && static_cast<size_t>(exp)<slen)
|
if (exp>0 && static_cast<size_t>(exp)<slen)
|
||||||
{
|
{
|
||||||
if(s[0]=='-')
|
if(s[0]=='-')
|
||||||
{
|
{
|
||||||
// Remove zeros starting from right end
|
// Remove zeros starting from right end
|
||||||
char* ptr = s+slen-1;
|
char* ptr = s+slen-1;
|
||||||
while (*ptr=='0' && ptr>s+exp) ptr--;
|
while (*ptr=='0' && ptr>s+exp) ptr--;
|
||||||
|
|
||||||
if(ptr==s+exp) out = string(s,exp+1);
|
if(ptr==s+exp) out = string(s,exp+1);
|
||||||
else out = string(s,exp+1)+'.'+string(s+exp+1,ptr-(s+exp+1)+1);
|
else out = string(s,exp+1)+'.'+string(s+exp+1,ptr-(s+exp+1)+1);
|
||||||
|
|
||||||
//out = string(s,exp+1)+'.'+string(s+exp+1);
|
//out = string(s,exp+1)+'.'+string(s+exp+1);
|
||||||
}
|
}
|
||||||
else
|
else
|
||||||
{
|
{
|
||||||
// Remove zeros starting from right end
|
// Remove zeros starting from right end
|
||||||
char* ptr = s+slen-1;
|
char* ptr = s+slen-1;
|
||||||
while (*ptr=='0' && ptr>s+exp-1) ptr--;
|
while (*ptr=='0' && ptr>s+exp-1) ptr--;
|
||||||
|
|
||||||
if(ptr==s+exp-1) out = string(s,exp);
|
if(ptr==s+exp-1) out = string(s,exp);
|
||||||
else out = string(s,exp)+'.'+string(s+exp,ptr-(s+exp)+1);
|
else out = string(s,exp)+'.'+string(s+exp,ptr-(s+exp)+1);
|
||||||
|
|
||||||
//out = string(s,exp)+'.'+string(s+exp);
|
//out = string(s,exp)+'.'+string(s+exp);
|
||||||
}
|
}
|
||||||
|
|
||||||
}else{ // exp<0 || exp>slen
|
}else{ // exp<0 || exp>slen
|
||||||
if(s[0]=='-')
|
if(s[0]=='-')
|
||||||
{
|
{
|
||||||
// Remove zeros starting from right end
|
// Remove zeros starting from right end
|
||||||
char* ptr = s+slen-1;
|
char* ptr = s+slen-1;
|
||||||
while (*ptr=='0' && ptr>s+1) ptr--;
|
while (*ptr=='0' && ptr>s+1) ptr--;
|
||||||
|
|
||||||
if(ptr==s+1) out = string(s,2);
|
if(ptr==s+1) out = string(s,2);
|
||||||
else out = string(s,2)+'.'+string(s+2,ptr-(s+2)+1);
|
else out = string(s,2)+'.'+string(s+2,ptr-(s+2)+1);
|
||||||
|
|
||||||
//out = string(s,2)+'.'+string(s+2);
|
//out = string(s,2)+'.'+string(s+2);
|
||||||
}
|
}
|
||||||
else
|
else
|
||||||
{
|
{
|
||||||
// Remove zeros starting from right end
|
// Remove zeros starting from right end
|
||||||
char* ptr = s+slen-1;
|
char* ptr = s+slen-1;
|
||||||
while (*ptr=='0' && ptr>s) ptr--;
|
while (*ptr=='0' && ptr>s) ptr--;
|
||||||
|
|
||||||
if(ptr==s) out = string(s,1);
|
if(ptr==s) out = string(s,1);
|
||||||
else out = string(s,1)+'.'+string(s+1,ptr-(s+1)+1);
|
else out = string(s,1)+'.'+string(s+1,ptr-(s+1)+1);
|
||||||
|
|
||||||
//out = string(s,1)+'.'+string(s+1);
|
//out = string(s,1)+'.'+string(s+1);
|
||||||
}
|
}
|
||||||
|
|
||||||
// Make final string
|
// Make final string
|
||||||
if(--exp)
|
if(--exp)
|
||||||
{
|
{
|
||||||
if(exp>0) out += "e+"+mpfr::to_string<mp_exp_t>(exp,std::dec);
|
if(exp>0) out += "e+"+mpfr::to_string<mp_exp_t>(exp,std::dec);
|
||||||
else out += "e"+mpfr::to_string<mp_exp_t>(exp,std::dec);
|
else out += "e"+mpfr::to_string<mp_exp_t>(exp,std::dec);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
mpfr_free_str(s);
|
mpfr_free_str(s);
|
||||||
return out;
|
return out;
|
||||||
}else{
|
}else{
|
||||||
return "conversion error!";
|
return "conversion error!";
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
//////////////////////////////////////////////////////////////////////////
|
//////////////////////////////////////////////////////////////////////////
|
||||||
// I/O
|
// I/O
|
||||||
ostream& operator<<(ostream& os, const mpreal& v)
|
ostream& operator<<(ostream& os, const mpreal& v)
|
||||||
{
|
{
|
||||||
return os<<v.to_string(os.precision());
|
return os<<v.to_string(os.precision());
|
||||||
}
|
}
|
||||||
|
|
||||||
istream& operator>>(istream &is, mpreal& v)
|
istream& operator>>(istream &is, mpreal& v)
|
||||||
{
|
{
|
||||||
char c;
|
char c;
|
||||||
string s = "";
|
string s = "";
|
||||||
mpfr_t t;
|
mpfr_t t;
|
||||||
|
|
||||||
if(is.good())
|
if(is.good())
|
||||||
{
|
{
|
||||||
is>>ws;
|
is>>ws;
|
||||||
while ((c = is.get())!=EOF)
|
while ((c = is.get())!=EOF)
|
||||||
{
|
{
|
||||||
if(c ==' ' || c == '\t' || c == '\n' || c == '\r')
|
if(c ==' ' || c == '\t' || c == '\n' || c == '\r')
|
||||||
{
|
{
|
||||||
is.putback(c);
|
is.putback(c);
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
s += c;
|
s += c;
|
||||||
}
|
}
|
||||||
|
|
||||||
if(s.size() != 0)
|
if(s.size() != 0)
|
||||||
{
|
{
|
||||||
// Protect current value from alternation in case of input error
|
// Protect current value from alternation in case of input error
|
||||||
// so some error handling(roll back) procedure can be used
|
// so some error handling(roll back) procedure can be used
|
||||||
if(0==mpfr_init_set_str(t,s.c_str(),mpreal::default_base,mpreal::default_rnd))
|
if(0==mpfr_init_set_str(t,s.c_str(),mpreal::default_base,mpreal::default_rnd))
|
||||||
{
|
{
|
||||||
mpfr_set(v.mp,t,mpreal::default_rnd);
|
mpfr_set(v.mp,t,mpreal::default_rnd);
|
||||||
mpfr_clear(t);
|
mpfr_clear(t);
|
||||||
|
|
||||||
}else{
|
}else{
|
||||||
mpfr_clear(t);
|
mpfr_clear(t);
|
||||||
cerr<<"error reading from istream"<<endl;
|
cerr<<"error reading from istream"<<endl;
|
||||||
// throw an exception
|
// throw an exception
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
return is;
|
return is;
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|||||||
Loading…
x
Reference in New Issue
Block a user