Start using string_is_empty

driver.c

@@ -15,6 +15,7 @@
  */
 
 #include <compat/posix_string.h>
+#include <string/stdstring.h>
 
 #include "general.h"
 #include "msg_hash.h"
@@ -139,7 +140,7 @@ int find_driver_index(const char * label, const char *drv)
    {
       if (!obj)
          return -1;
-      if (str[0] == '\0')
+      if (string_is_empty(str))
          break;
       if (!strcasecmp(drv, str))
          return i;

retroarch.c

@@ -24,6 +24,7 @@
 #include <setjmp.h>
 
 #include <boolean.h>
+#include <string/stdstring.h>
 
 #ifdef _WIN32
 #ifdef _XBOX
@@ -333,7 +334,7 @@ static void set_special_paths(char **argv, unsigned num_content)
    /* If this is already set,
     * do not overwrite it as this was initialized before in
     * a menu or otherwise. */
-   if (settings->system_directory[0] == '\0')
+   if (string_is_empty(settings->system_directory))
    {
       RARCH_WARN("SYSTEM DIR is empty, assume CONTENT DIR %s\n",argv[0]);
       /*fill_pathname_basedir(settings->system_directory, argv[0],
@@ -365,7 +366,7 @@ static void set_paths_redirect(const char *path)
     return;
    }
    if (info->info.library_name &&
-            (info->info.library_name[0] != '\0'))
+            !string_is_empty(info->info.library_name))
          global_library_name_hash = msg_hash_calculate(info->info.library_name);
 
    /* Initialize current save directories with the values from the config */
@@ -385,7 +386,8 @@ static void set_paths_redirect(const char *path)
    if (check_global_library_name_hash)
    {
       /* per-core saves: append the library_name to the save location */
-      if (settings->sort_savefiles_enable && global->dir.savefile[0] != '\0')
+      if (settings->sort_savefiles_enable 
+            && !string_is_empty(global->dir.savefile))
       {
          fill_pathname_join(
                current_savefile_dir,
@@ -395,7 +397,8 @@ static void set_paths_redirect(const char *path)
 
          /* If path doesn't exist, try to create it,
           * if everything fails revert to the original path. */
-         if(!path_is_directory(current_savefile_dir) && current_savefile_dir[0] != '\0')
+         if(!path_is_directory(current_savefile_dir) 
+               && !string_is_empty(current_savefile_dir))
          {
             path_mkdir(current_savefile_dir);
             if(!path_is_directory(current_savefile_dir))
@@ -409,7 +412,8 @@ static void set_paths_redirect(const char *path)
       }
 
       /* per-core states: append the library_name to the save location */
-      if (settings->sort_savestates_enable && global->dir.savestate[0] != '\0')
+      if (settings->sort_savestates_enable 
+            && !string_is_empty(global->dir.savestate))
       {
          fill_pathname_join(
                current_savestate_dir,
@@ -419,7 +423,8 @@ static void set_paths_redirect(const char *path)
 
          /* If path doesn't exist, try to create it.
           * If everything fails, revert to the original path. */
-         if(!path_is_directory(current_savestate_dir) && current_savestate_dir[0] != '\0')
+         if(!path_is_directory(current_savestate_dir) && 
+               !string_is_empty(current_savestate_dir))
          {
             path_mkdir(current_savestate_dir);
             if(!path_is_directory(current_savestate_dir))
@@ -1539,7 +1544,7 @@ void rarch_playlist_load_content(void *data, unsigned idx)
    content_playlist_get_index(playlist,
          idx, &path, NULL, &core_path, NULL, NULL, NULL);
 
-   if (path && path[0] != '\0')
+   if (path && !string_is_empty(path))
    {
       unsigned i;
       RFILE *fp           = NULL;

runloop.c

@@ -26,6 +26,7 @@
 #ifdef HAVE_THREADS
 #include <rthreads/rthreads.h>
 #endif
+#include <string/stdstring.h>
 
 #include <compat/strl.h>
 
@@ -420,7 +421,7 @@ static bool rarch_game_specific_options(char **output)
 
    if (!core_name || !game_name)
       return false;
-   if (core_name[0] == '\0' || game_name[0] == '\0')
+   if (string_is_empty(core_name) || string_is_empty(game_name))
       return false;
 
    RARCH_LOG("Per-Game Options: core name: %s\n", core_name);
@@ -429,9 +430,9 @@ static bool rarch_game_specific_options(char **output)
    /* Config directory: config_directory.
    * Try config directory setting first,
    * fallback to the location of the current configuration file. */
-   if (settings->menu_config_directory[0] != '\0')
+   if (!string_is_empty(settings->menu_config_directory))
       strlcpy(config_directory, settings->menu_config_directory, sizeof(config_directory));
-   else if (global->path.config[0] != '\0')
+   else if (!string_is_empty(global->path.config))
       fill_pathname_basedir(config_directory, global->path.config, sizeof(config_directory));
    else
    {