X-Git-Url: https://git.distorted.org.uk/~mdw/sgt/puzzles/blobdiff_plain/388b2f0063a017a5be26f72eae1424bad5b23f3c..5d6421f7727fb367981ad5a1dfba5e17207e1e4e:/latin.h

diff --git a/latin.h b/latin.h
index dbea6e4..a1b5873 100644
--- a/latin.h
+++ b/latin.h
@@ -8,7 +8,7 @@ typedef unsigned char digit;
 /* --- Solver structures, definitions --- */
 
 #ifdef STANDALONE_SOLVER
-int solver_show_working, solver_recurse_depth;
+extern int solver_show_working, solver_recurse_depth;
 #endif
 
 struct latin_solver {
@@ -19,6 +19,10 @@ struct latin_solver {
 
   unsigned char *row;   /* o^2: row[y*cr+n-1] TRUE if n is in row y */
   unsigned char *col;   /* o^2: col[x*cr+n-1] TRUE if n is in col x */
+
+#ifdef STANDALONE_SOLVER
+  char **names;         /* o: names[n-1] gives name of 'digit' n */
+#endif
 };
 #define cubepos(x,y,n) (((x)*solver->o+(y))*solver->o+(n)-1)
 #define cube(x,y,n) (solver->cube[cubepos(x,y,n)])