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-
- /**************************************************************************
- **
- ** Copyright (C) 1993 David E. Steward & Zbigniew Leyk, all rights reserved.
- **
- ** Meschach Library
- **
- ** This Meschach Library is provided "as is" without any express
- ** or implied warranty of any kind with respect to this software.
- ** In particular the authors shall not be liable for any direct,
- ** indirect, special, incidental or consequential damages arising
- ** in any way from use of the software.
- **
- ** Everyone is granted permission to copy, modify and redistribute this
- ** Meschach Library, provided:
- ** 1. All copies contain this copyright notice.
- ** 2. All modified copies shall carry a notice stating who
- ** made the last modification and the date of such modification.
- ** 3. No charge is made for this software or works derived from it.
- ** This clause shall not be construed as constraining other software
- ** distributed on the same medium as this software, nor is a
- ** distribution fee considered a charge.
- **
- ***************************************************************************/
-
-
- /* 1.6 matrixio.c 11/25/87 */
-
-
- #include <stdio.h>
- #include <ctype.h>
- #include "matrix.h"
-
- static char rcsid[] = "$Id: matrixio.c,v 1.4 1994/01/13 05:31:10 des Exp $";
-
-
- /* local variables */
- static char line[MAXLINE];
-
-
- /**************************************************************************
- Input routines
- **************************************************************************/
- /* skipjunk -- skips white spaces and strings of the form #....\n
- Here .... is a comment string */
- int skipjunk(fp)
- FILE *fp;
- {
- int c;
-
- for ( ; ; ) /* forever do... */
- {
- /* skip blanks */
- do
- c = getc(fp);
- while ( isspace(c) );
-
- /* skip comments (if any) */
- if ( c == '#' )
- /* yes it is a comment (line) */
- while ( (c=getc(fp)) != '\n' )
- ;
- else
- {
- ungetc(c,fp);
- break;
- }
- }
- return 0;
- }
-
- MAT *m_finput(fp,a)
- FILE *fp;
- MAT *a;
- {
- MAT *im_finput(),*bm_finput();
-
- if ( isatty(fileno(fp)) )
- return im_finput(fp,a);
- else
- return bm_finput(fp,a);
- }
-
- /* im_finput -- interactive input of matrix */
- MAT *im_finput(fp,mat)
- FILE *fp;
- MAT *mat;
- {
- char c;
- u_int i, j, m, n, dynamic;
- /* dynamic set to TRUE if memory allocated here */
-
- /* get matrix size */
- if ( mat != (MAT *)NULL && mat->m<MAXDIM && mat->n<MAXDIM )
- { m = mat->m; n = mat->n; dynamic = FALSE; }
- else
- {
- dynamic = TRUE;
- do
- {
- fprintf(stderr,"Matrix: rows cols:");
- if ( fgets(line,MAXLINE,fp)==NULL )
- error(E_INPUT,"im_finput");
- } while ( sscanf(line,"%u%u",&m,&n)<2 || m>MAXDIM || n>MAXDIM );
- mat = m_get(m,n);
- }
-
- /* input elements */
- for ( i=0; i<m; i++ )
- {
- redo:
- fprintf(stderr,"row %u:\n",i);
- for ( j=0; j<n; j++ )
- do
- {
- redo2:
- fprintf(stderr,"entry (%u,%u): ",i,j);
- if ( !dynamic )
- fprintf(stderr,"old %14.9g new: ",
- mat->me[i][j]);
- if ( fgets(line,MAXLINE,fp)==NULL )
- error(E_INPUT,"im_finput");
- if ( (*line == 'b' || *line == 'B') && j > 0 )
- { j--; dynamic = FALSE; goto redo2; }
- if ( (*line == 'f' || *line == 'F') && j < n-1 )
- { j++; dynamic = FALSE; goto redo2; }
- #if REAL == DOUBLE
- } while ( *line=='\0' || sscanf(line,"%lf",&mat->me[i][j])<1 );
- #elif REAL == FLOAT
- } while ( *line=='\0' || sscanf(line,"%f",&mat->me[i][j])<1 );
- #endif
- fprintf(stderr,"Continue: ");
- fscanf(fp,"%c",&c);
- if ( c == 'n' || c == 'N' )
- { dynamic = FALSE; goto redo; }
- if ( (c == 'b' || c == 'B') /* && i > 0 */ )
- { if ( i > 0 )
- i--;
- dynamic = FALSE; goto redo;
- }
- }
-
- return (mat);
- }
-
- /* bm_finput -- batch-file input of matrix */
- MAT *bm_finput(fp,mat)
- FILE *fp;
- MAT *mat;
- {
- u_int i,j,m,n,dummy;
- int io_code;
-
- /* get dimension */
- skipjunk(fp);
- if ((io_code=fscanf(fp," Matrix: %u by %u",&m,&n)) < 2 ||
- m>MAXDIM || n>MAXDIM )
- error(io_code==EOF ? E_EOF : E_FORMAT,"bm_finput");
-
- /* allocate memory if necessary */
- if ( mat==(MAT *)NULL )
- mat = m_resize(mat,m,n);
-
- /* get entries */
- for ( i=0; i<m; i++ )
- {
- skipjunk(fp);
- if ( fscanf(fp," row %u:",&dummy) < 1 )
- error(E_FORMAT,"bm_finput");
- for ( j=0; j<n; j++ )
- #if REAL == DOUBLE
- if ((io_code=fscanf(fp,"%lf",&mat->me[i][j])) < 1 )
- #elif REAL == FLOAT
- if ((io_code=fscanf(fp,"%f",&mat->me[i][j])) < 1 )
- #endif
- error(io_code==EOF ? 7 : 6,"bm_finput");
- }
-
- return (mat);
- }
-
- PERM *px_finput(fp,px)
- FILE *fp;
- PERM *px;
- {
- PERM *ipx_finput(),*bpx_finput();
-
- if ( isatty(fileno(fp)) )
- return ipx_finput(fp,px);
- else
- return bpx_finput(fp,px);
- }
-
-
- /* ipx_finput -- interactive input of permutation */
- PERM *ipx_finput(fp,px)
- FILE *fp;
- PERM *px;
- {
- u_int i,j,size,dynamic; /* dynamic set if memory allocated here */
- u_int entry,ok;
-
- /* get permutation size */
- if ( px!=(PERM *)NULL && px->size<MAXDIM )
- { size = px->size; dynamic = FALSE; }
- else
- {
- dynamic = TRUE;
- do
- {
- fprintf(stderr,"Permutation: size: ");
- if ( fgets(line,MAXLINE,fp)==NULL )
- error(E_INPUT,"ipx_finput");
- } while ( sscanf(line,"%u",&size)<1 || size>MAXDIM );
- px = px_get(size);
- }
-
- /* get entries */
- i = 0;
- while ( i<size )
- {
- /* input entry */
- do
- {
- redo:
- fprintf(stderr,"entry %u: ",i);
- if ( !dynamic )
- fprintf(stderr,"old: %u->%u new: ",
- i,px->pe[i]);
- if ( fgets(line,MAXLINE,fp)==NULL )
- error(E_INPUT,"ipx_finput");
- if ( (*line == 'b' || *line == 'B') && i > 0 )
- { i--; dynamic = FALSE; goto redo; }
- } while ( *line=='\0' || sscanf(line,"%u",&entry) < 1 );
- /* check entry */
- ok = (entry < size);
- for ( j=0; j<i; j++ )
- ok &= (entry != px->pe[j]);
- if ( ok )
- {
- px->pe[i] = entry;
- i++;
- }
- }
-
- return (px);
- }
-
- /* bpx_finput -- batch-file input of permutation */
- PERM *bpx_finput(fp,px)
- FILE *fp;
- PERM *px;
- {
- u_int i,j,size,entry,ok;
- int io_code;
-
- /* get size of permutation */
- skipjunk(fp);
- if ((io_code=fscanf(fp," Permutation: size:%u",&size)) < 1 ||
- size>MAXDIM )
- error(io_code==EOF ? 7 : 6,"bpx_finput");
-
- /* allocate memory if necessary */
- if ( px==(PERM *)NULL || px->size<size )
- px = px_resize(px,size);
-
- /* get entries */
- skipjunk(fp);
- i = 0;
- while ( i<size )
- {
- /* input entry */
- if ((io_code=fscanf(fp,"%*u -> %u",&entry)) < 1 )
- error(io_code==EOF ? 7 : 6,"bpx_finput");
- /* check entry */
- ok = (entry < size);
- for ( j=0; j<i; j++ )
- ok &= (entry != px->pe[j]);
- if ( ok )
- {
- px->pe[i] = entry;
- i++;
- }
- else
- error(E_BOUNDS,"bpx_finput");
- }
-
- return (px);
- }
-
-
- VEC *v_finput(fp,x)
- FILE *fp;
- VEC *x;
- {
- VEC *ifin_vec(),*bfin_vec();
-
- if ( isatty(fileno(fp)) )
- return ifin_vec(fp,x);
- else
- return bfin_vec(fp,x);
- }
-
- /* ifin_vec -- interactive input of vector */
- VEC *ifin_vec(fp,vec)
- FILE *fp;
- VEC *vec;
- {
- u_int i,dim,dynamic; /* dynamic set if memory allocated here */
-
- /* get vector dimension */
- if ( vec != (VEC *)NULL && vec->dim<MAXDIM )
- { dim = vec->dim; dynamic = FALSE; }
- else
- {
- dynamic = TRUE;
- do
- {
- fprintf(stderr,"Vector: dim: ");
- if ( fgets(line,MAXLINE,fp)==NULL )
- error(E_INPUT,"ifin_vec");
- } while ( sscanf(line,"%u",&dim)<1 || dim>MAXDIM );
- vec = v_get(dim);
- }
-
- /* input elements */
- for ( i=0; i<dim; i++ )
- do
- {
- redo:
- fprintf(stderr,"entry %u: ",i);
- if ( !dynamic )
- fprintf(stderr,"old %14.9g new: ",vec->ve[i]);
- if ( fgets(line,MAXLINE,fp)==NULL )
- error(E_INPUT,"ifin_vec");
- if ( (*line == 'b' || *line == 'B') && i > 0 )
- { i--; dynamic = FALSE; goto redo; }
- if ( (*line == 'f' || *line == 'F') && i < dim-1 )
- { i++; dynamic = FALSE; goto redo; }
- #if REAL == DOUBLE
- } while ( *line=='\0' || sscanf(line,"%lf",&vec->ve[i]) < 1 );
- #elif REAL == FLOAT
- } while ( *line=='\0' || sscanf(line,"%f",&vec->ve[i]) < 1 );
- #endif
-
- return (vec);
- }
-
- /* bfin_vec -- batch-file input of vector */
- VEC *bfin_vec(fp,vec)
- FILE *fp;
- VEC *vec;
- {
- u_int i,dim;
- int io_code;
-
- /* get dimension */
- skipjunk(fp);
- if ((io_code=fscanf(fp," Vector: dim:%u",&dim)) < 1 ||
- dim>MAXDIM )
- error(io_code==EOF ? 7 : 6,"bfin_vec");
-
- /* allocate memory if necessary */
- if ( vec==(VEC *)NULL )
- vec = v_resize(vec,dim);
-
- /* get entries */
- skipjunk(fp);
- for ( i=0; i<dim; i++ )
- #if REAL == DOUBLE
- if ((io_code=fscanf(fp,"%lf",&vec->ve[i])) < 1 )
- #elif REAL == FLOAT
- if ((io_code=fscanf(fp,"%f",&vec->ve[i])) < 1 )
- #endif
- error(io_code==EOF ? 7 : 6,"bfin_vec");
-
- return (vec);
- }
-
- /**************************************************************************
- Output routines
- **************************************************************************/
- static char *format = "%14.9g ";
-
- char *setformat(f_string)
- char *f_string;
- {
- char *old_f_string;
- old_f_string = format;
- if ( f_string != (char *)NULL && *f_string != '\0' )
- format = f_string;
-
- return old_f_string;
- }
-
- void m_foutput(fp,a)
- FILE *fp;
- MAT *a;
- {
- u_int i, j, tmp;
-
- if ( a == (MAT *)NULL )
- { fprintf(fp,"Matrix: NULL\n"); return; }
- fprintf(fp,"Matrix: %d by %d\n",a->m,a->n);
- if ( a->me == (Real **)NULL )
- { fprintf(fp,"NULL\n"); return; }
- for ( i=0; i<a->m; i++ ) /* for each row... */
- {
- fprintf(fp,"row %u: ",i);
- for ( j=0, tmp=2; j<a->n; j++, tmp++ )
- { /* for each col in row... */
- fprintf(fp,format,a->me[i][j]);
- if ( ! (tmp % 5) ) putc('\n',fp);
- }
- if ( tmp % 5 != 1 ) putc('\n',fp);
- }
- }
-
- void px_foutput(fp,px)
- FILE *fp;
- PERM *px;
- {
- u_int i;
-
- if ( px == (PERM *)NULL )
- { fprintf(fp,"Permutation: NULL\n"); return; }
- fprintf(fp,"Permutation: size: %u\n",px->size);
- if ( px->pe == (u_int *)NULL )
- { fprintf(fp,"NULL\n"); return; }
- for ( i=0; i<px->size; i++ )
- if ( ! (i % 8) && i != 0 )
- fprintf(fp,"\n %u->%u ",i,px->pe[i]);
- else
- fprintf(fp,"%u->%u ",i,px->pe[i]);
- fprintf(fp,"\n");
- }
-
- void v_foutput(fp,x)
- FILE *fp;
- VEC *x;
- {
- u_int i, tmp;
-
- if ( x == (VEC *)NULL )
- { fprintf(fp,"Vector: NULL\n"); return; }
- fprintf(fp,"Vector: dim: %d\n",x->dim);
- if ( x->ve == (Real *)NULL )
- { fprintf(fp,"NULL\n"); return; }
- for ( i=0, tmp=0; i<x->dim; i++, tmp++ )
- {
- fprintf(fp,format,x->ve[i]);
- if ( tmp % 5 == 4 ) putc('\n',fp);
- }
- if ( tmp % 5 != 0 ) putc('\n',fp);
- }
-
-
- void m_dump(fp,a)
- FILE *fp;
- MAT *a;
- {
- u_int i, j, tmp;
-
- if ( a == (MAT *)NULL )
- { fprintf(fp,"Matrix: NULL\n"); return; }
- fprintf(fp,"Matrix: %d by %d @ 0x%lx\n",a->m,a->n,(long)a);
- fprintf(fp,"\tmax_m = %d, max_n = %d, max_size = %d\n",
- a->max_m, a->max_n, a->max_size);
- if ( a->me == (Real **)NULL )
- { fprintf(fp,"NULL\n"); return; }
- fprintf(fp,"a->me @ 0x%lx\n",(long)(a->me));
- fprintf(fp,"a->base @ 0x%lx\n",(long)(a->base));
- for ( i=0; i<a->m; i++ ) /* for each row... */
- {
- fprintf(fp,"row %u: @ 0x%lx ",i,(long)(a->me[i]));
- for ( j=0, tmp=2; j<a->n; j++, tmp++ )
- { /* for each col in row... */
- fprintf(fp,format,a->me[i][j]);
- if ( ! (tmp % 5) ) putc('\n',fp);
- }
- if ( tmp % 5 != 1 ) putc('\n',fp);
- }
- }
-
- void px_dump(fp,px)
- FILE *fp;
- PERM *px;
- {
- u_int i;
-
- if ( ! px )
- { fprintf(fp,"Permutation: NULL\n"); return; }
- fprintf(fp,"Permutation: size: %u @ 0x%lx\n",px->size,(long)(px));
- if ( ! px->pe )
- { fprintf(fp,"NULL\n"); return; }
- fprintf(fp,"px->pe @ 0x%lx\n",(long)(px->pe));
- for ( i=0; i<px->size; i++ )
- fprintf(fp,"%u->%u ",i,px->pe[i]);
- fprintf(fp,"\n");
- }
-
-
- void v_dump(fp,x)
- FILE *fp;
- VEC *x;
- {
- u_int i, tmp;
-
- if ( ! x )
- { fprintf(fp,"Vector: NULL\n"); return; }
- fprintf(fp,"Vector: dim: %d @ 0x%lx\n",x->dim,(long)(x));
- if ( ! x->ve )
- { fprintf(fp,"NULL\n"); return; }
- fprintf(fp,"x->ve @ 0x%lx\n",(long)(x->ve));
- for ( i=0, tmp=0; i<x->dim; i++, tmp++ )
- {
- fprintf(fp,format,x->ve[i]);
- if ( tmp % 5 == 4 ) putc('\n',fp);
- }
- if ( tmp % 5 != 0 ) putc('\n',fp);
- }
-
-