Return error messages as 'const char *', not 'char *'.

[sgt-puzzles.git] / unfinished / sokoban.c

diff --git a/unfinished/sokoban.c b/unfinished/sokoban.c
index edd0f28672ed504c41241615b5355925ab6de1c1..12646904160287ccdb6340576973774d345f6b7e 100644 (file)
--- a/unfinished/sokoban.c
+++ b/unfinished/sokoban.c
@@ -233,7 +233,7 @@ static game_params *custom_params(const config_item *cfg)
     return ret;
 }
 
-static char *validate_params(const game_params *params, int full)
+static const char *validate_params(const game_params *params, int full)
 {
     if (params->w < 4 || params->h < 4)
        return "Width and height must both be at least 4";
@@ -802,7 +802,7 @@ static char *new_game_desc(const game_params *params, random_state *rs,
     return desc;
 }
 
-static char *validate_desc(const game_params *params, const char *desc)
+static const char *validate_desc(const game_params *params, const char *desc)
 {
     int w = params->w, h = params->h;
     int area = 0;
@@ -899,7 +899,7 @@ static void free_game(game_state *state)
 }
 
 static char *solve_game(const game_state *state, const game_state *currstate,
-                        const char *aux, char **error)
+                        const char *aux, const char **error)
 {
     return NULL;
 }