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error.c
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error.c
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/* error.c: Error handling
Copyright 2005 Bjoern Butscher, Hendrik Weimer
This file is part of libquantum
libquantum is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 3 of the License,
or (at your option) any later version.
libquantum 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with libquantum; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
MA 02110-1301, USA
*/
#include <stdlib.h>
#include <stdio.h>
#include "error.h"
void *
quantum_error_handler(void *f(int))
{
static void *errfunc = 0;
if(f)
errfunc = f;
return errfunc;
}
const char *
quantum_strerr(int errno)
{
switch(errno)
{
case QUANTUM_SUCCESS:
return "success";
case QUANTUM_FAILURE:
return "failure";
case QUANTUM_ENOMEM:
return "malloc failed";
case QUANTUM_EMLARGE:
return "matrix too large";
case QUANTUM_EMSIZE:
return "wrong matrix size";
case QUANTUM_EHASHFULL:
return "hash table full";
case QUANTUM_EHERMITIAN:
return "matrix not Hermitian";
case QUANTUM_ENOCONVERGE:
return "method failed to converge";
case QUANTUM_ENOLAPACK:
return "LAPACK support not compiled in";
case QUANTUM_ELAPACKARG:
return "wrong arguments supplied to LAPACK";
case QUANTUM_ELAPACKCONV:
return "LAPACK failed to converge";
case QUANTUM_EMCMATRIX:
return "single-column matrix expected";
case QUANTUM_EOPCODE:
return "unknown opcode";
default:
return "unknown error code";
}
}
void
quantum_error(int errno)
{
void (*p)(int);
p = quantum_error_handler(0);
if(p)
p(errno);
else
{
fflush(stdout);
fprintf(stderr, "ERROR: %s\n", quantum_strerr(errno));
fflush(stderr);
abort();
}
}