process_hkl: Show information about symmetry

src/process_hkl.c

@@ -442,6 +442,13 @@ int main(int argc, char *argv[])
 	rewind(fh);
 	STATUS("There are %i patterns to process\n", n_total_patterns);
 
+	/* Show useful symmetry information */
+	const char *holo = get_holohedral(sym);
+	int np = num_general_equivs(holo) / num_general_equivs(sym);
+	STATUS("Resolving from point group %s to %s (%i possibilities)\n",
+	       holo, sym, np);
+
+
 	n_patterns = 0;
 	f0_valid = 0;
 	do {

src/symmetry.c

@@ -57,7 +57,7 @@ static int check_cond(signed int h, signed int k, signed int l, const char *sym)
 	}
 
 
-static int num_general_equivs(const char *sym)
+int num_general_equivs(const char *sym)
 {
 	/* Triclinic */
 	if ( strcmp(sym, "1") == 0 ) return 1;

src/symmetry.h

@@ -25,6 +25,8 @@ extern void get_asymm(signed int h, signed int k, signed int l,
 extern int num_equivs(signed int h, signed int k, signed int l,
                       const char *sym);
 
+extern int num_general_equivs(const char *sym);
+
 extern void get_equiv(signed int h, signed int k, signed int l,
                       signed int *he, signed int *ke, signed int *le,
                       const char *sym, int idx);