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

They're never dynamically allocated, and are almost always string
literals, so const is more appropriate.
This commit is contained in:
Simon Tatham
2017-10-01 13:53:24 +01:00
parent de67801b0f
commit b3243d7504
52 changed files with 266 additions and 231 deletions

View File

@ -302,7 +302,7 @@ 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->width <= 1 || params->height <= 1)
return "Width and height must both be greater than one";
@ -689,7 +689,7 @@ 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->width, h = params->height;
int i;
@ -879,7 +879,7 @@ 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)
{
if (!aux) {
*error = "Solution not known for this puzzle";