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/* complg.c version 1.1; B D McKay, Sep 2012. */
#define USAGE "complg [-lrq] [infile [outfile]]"
#define HELPTEXT \
" Take the complements of a file of graphs.\n\
\n\
The output file has a header if and only if the input file does.\n\
\n\
-r Only complement if the complement has fewer edges.\n\
-l Canonically label outputs.\n\
-q Suppress auxiliary information.\n"
/*************************************************************************/
#include "gtools.h"
/**************************************************************************/
void
compl(graph *g, int m, int n, graph *h)
/* h := complement of g */
{
int i,j;
setword *gi,*hi;
#if MAXN
set all[MAXM];
#else
DYNALLSTAT(set,all,all_sz);
DYNALLOC1(set,all,all_sz,m,"complg");
#endif
EMPTYSET(all,m);
for (i = 0; i < n; ++i) ADDELEMENT(all,i);
gi = (setword*) g;
hi = (setword*) h;
for (i = 0; i < n; ++i)
{
for (j = 0; j < m; ++j) hi[j] = gi[j] ^ all[j];
DELELEMENT(hi,i);
gi += m;
hi += m;
}
}
/**************************************************************************/
int
main(int argc, char *argv[])
{
char *infilename,*outfilename;
FILE *infile,*outfile;
boolean dolabel,badargs,restricted,quiet;
int j,m,n,argnum;
int codetype,outcode;
graph *g;
long ii,ned;
nauty_counter nin;
char *arg,sw;
static graph *gq;
double t;
#if MAXN
graph gc[MAXN*MAXM],h[MAXN*MAXM];
#else
DYNALLSTAT(graph,gc,gc_sz);
DYNALLSTAT(graph,h,h_sz);
#endif
HELP;
infilename = outfilename = NULL;
dolabel = badargs = FALSE;
restricted = quiet = FALSE;
argnum = 0;
badargs = FALSE;
for (j = 1; !badargs && j < argc; ++j)
{
arg = argv[j];
if (arg[0] == '-' && arg[1] != '\0')
{
++arg;
while (*arg != '\0')
{
sw = *arg++;
SWBOOLEAN('r',restricted)
else SWBOOLEAN('l',dolabel)
else SWBOOLEAN('q',quiet)
else badargs = TRUE;
}
}
else
{
++argnum;
if (argnum == 1) infilename = arg;
else if (argnum == 2) outfilename = arg;
else badargs = TRUE;
}
}
if (badargs)
{
fprintf(stderr,">E Usage: %s\n",USAGE);
GETHELP;
exit(1);
}
if (!quiet)
{
fprintf(stderr,">A complg");
if (restricted || dolabel)
fprintf(stderr," -");
if (restricted) fprintf(stderr,"r");
if (dolabel) fprintf(stderr,"l");
if (argnum > 0) fprintf(stderr," %s",infilename);
if (argnum > 1) fprintf(stderr," %s",outfilename);
fprintf(stderr,"\n");
fflush(stderr);
}
if (infilename && infilename[0] == '-') infilename = NULL;
infile = opengraphfile(infilename,&codetype,FALSE,1);
if (!infile) exit(1);
if (!infilename) infilename = "stdin";
if (!outfilename || outfilename[0] == '-')
{
outfilename = "stdout";
outfile = stdout;
}
else if ((outfile = fopen(outfilename,"w")) == NULL)
{
fprintf(stderr,"Can't open output file %s\n",outfilename);
gt_abort(NULL);
}
if (codetype&SPARSE6) outcode = SPARSE6;
else outcode = GRAPH6;
if (codetype&HAS_HEADER)
{
if (outcode == SPARSE6) writeline(outfile,SPARSE6_HEADER);
else writeline(outfile,GRAPH6_HEADER);
}
if (dolabel) nauty_check(WORDSIZE,1,1,NAUTYVERSIONID);
nin = 0;
t = CPUTIME;
while (TRUE)
{
if ((g = readg(infile,NULL,0,&m,&n)) == NULL) break;
++nin;
#if !MAXN
DYNALLOC2(graph,gc,gc_sz,n,m,"complg");
#endif
if (restricted)
{
ned = 0;
for (ii = (long)n*m; --ii >= 0; ) ned += POPCOUNT(g[ii]);
if (ned+ned > (long)n*(n-1))
{
compl(g,m,n,gc);
gq = gc;
}
else
gq = g;
}
else
{
compl(g,m,n,gc);
gq = gc;
}
if (dolabel)
{
#if !MAXN
DYNALLOC2(graph,h,h_sz,n,m,"complg");
#endif
fcanonise(gq,m,n,h,NULL,FALSE);
gq = h;
}
if (outcode == SPARSE6) writes6(outfile,gq,m,n);
else writeg6(outfile,gq,m,n);
FREES(g);
}
t = CPUTIME - t;
if (!quiet)
fprintf(stderr,">Z " COUNTER_FMT
" graphs converted from %s to %s in %3.2f sec.\n",
nin,infilename,outfilename,t);
exit(0);
}
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