(input) Use string_is_empty

input/drivers/android_input.c

@@ -23,6 +23,7 @@
 
 #include <dynamic/dylib.h>
 #include <retro_inline.h>
+#include <string/stdstring.h>
 
 #include "../../frontend/drivers/platform_linux.h"
 #include "../input_autodetect.h"
@@ -822,7 +823,7 @@ static void handle_hotplug(android_input_data_t *android_data,
    else if (strstr(device_name, "MOGA"))
       strlcpy(name_buf, "Moga IME", sizeof(name_buf));
 
-   else if (device_name[0] != '\0')
+   else if (!string_is_empty(device_name))
       strlcpy(name_buf, device_name, sizeof(name_buf));
 
    if (strstr(android_app->current_ime, "net.obsidianx.android.mogaime"))
@@ -859,7 +860,7 @@ static void handle_hotplug(android_input_data_t *android_data,
       }
    }
 
-   if (name_buf[0] != '\0')
+   if (!string_is_empty(name_buf))
    {
       strlcpy(settings->input.device_names[*port],
             name_buf, sizeof(settings->input.device_names[*port]));

input/drivers/qnx_input.c

@@ -15,13 +15,14 @@
  *  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <boolean.h>
+#include <string/stdstring.h>
+
 #include <screen/screen.h>
 #include <bps/event.h>
 #include <bps/navigator.h>
 #include <sys/keycodes.h>
 
-#include <boolean.h>
-
 #include "../../general.h"
 #include "../../driver.h"
 #include "../input_autodetect.h"
@@ -200,7 +201,7 @@ static void qnx_input_autodetect_gamepad(qnx_input_t *qnx,
 #endif
    }
 
-   if (name_buf[0] != '\0')
+   if (!string_is_empty(name_buf))
    {
       autoconfig_params_t params = {{0}};
 

input/drivers_hid/iohidmanager_hid.c

@@ -14,6 +14,8 @@
  *  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <string/stdstring.h>
+
 #include <IOKit/hid/IOHIDManager.h>
 #include <IOKit/hid/IOHIDKeys.h>
 
@@ -340,7 +342,7 @@ static void iohidmanager_hid_device_add(void *data, IOReturn result,
       IOHIDDeviceRegisterInputValueCallback(device,
             iohidmanager_hid_device_input_callback, adapter);
 
-   if (adapter->name[0] == '\0')
+   if (string_is_empty(adapter->name))
       return;
 
    strlcpy(settings->input.device_names[adapter->slot],

input/drivers_hid/libusb_hid.c

@@ -21,6 +21,7 @@
 #include <rthreads/rthreads.h>
 #include <compat/strl.h>
 #include <queues/fifo_buffer.h>
+#include <string/stdstring.h>
 
 #include "../connect/joypad_connection.h"
 #include "../input_autodetect.h"
@@ -264,7 +265,7 @@ static int add_adapter(void *data, struct libusb_device *dev)
 
    device_name   = (const char*)adapter->name;
 
-   if (adapter->name[0] == '\0')
+   if (string_is_empty((const char*)adapter->name))
       goto error;
 
    adapter->send_control_lock = slock_new();

input/drivers_joypad/udev_joypad.c

@@ -28,6 +28,7 @@
 #include <linux/input.h>
 
 #include <retro_inline.h>
+#include <string/stdstring.h>
 
 #include "../input_autodetect.h"
 #include "../../general.h"
@@ -375,7 +376,7 @@ static void udev_free_pad(unsigned pad)
    if (udev_pads[pad].path)
       free(udev_pads[pad].path);
    udev_pads[pad].path = NULL;
-   if (udev_pads[pad].ident[0] != '\0')
+   if (!string_is_empty(udev_pads[pad].ident))
       udev_pads[pad].ident[0] = '\0';
 
    memset(&udev_pads[pad], 0, sizeof(udev_pads[pad]));

input/input_autodetect.c

@@ -20,6 +20,7 @@
 
 #include <file/dir_list.h>
 #include <file/file_path.h>
+#include <string/stdstring.h>
 
 #include "input_config.h"
 #include "input_autodetect.h"
@@ -107,7 +108,7 @@ static int input_try_autoconfigure_joypad_from_conf(config_file_t *conf,
    }
    else
    {
-      if (ident[0] != '\0' && !strncmp(params->name, ident, strlen(ident)))
+      if (!string_is_empty(ident) && !strncmp(params->name, ident, strlen(ident)))
       {
          score += 1;
 #if 0
@@ -147,7 +148,7 @@ static void input_autoconfigure_joypad_add(config_file_t *conf, autoconfig_param
 
    if (!strcmp(device_type,"remote"))
    {
-      if (display_name[0] != '\0' || strcmp(display_name, ""))
+      if (!string_is_empty(display_name) || strcmp(display_name, ""))
          snprintf(msg, sizeof(msg), "%s configured",
             display_name);
       else
@@ -160,7 +161,7 @@ static void input_autoconfigure_joypad_add(config_file_t *conf, autoconfig_param
    }
    else
    {
-      if (display_name[0] != '\0' || strcmp(display_name, ""))
+      if (!string_is_empty(display_name) || strcmp(display_name, ""))
          snprintf(msg, sizeof(msg), "%s configured in port #%u.",
                display_name, params->idx);
       else

input/input_config.c

@@ -19,6 +19,7 @@
 #include <ctype.h>
 
 #include <file/file_path.h>
+#include <string/stdstring.h>
 
 #include "input_config.h"
 #include "input_keymaps.h"
@@ -376,7 +377,7 @@ static void input_config_get_bind_string_joykey(char *buf, const char *prefix,
             break;
       }
 
-      if (bind->joykey_label[0] != '\0' && settings->input.input_descriptor_label_show)
+      if (!string_is_empty(bind->joykey_label) && settings->input.input_descriptor_label_show)
          snprintf(buf, size, "%s %s ", prefix, bind->joykey_label);
       else
          snprintf(buf, size, "%sHat #%u %s ", prefix,
@@ -384,7 +385,7 @@ static void input_config_get_bind_string_joykey(char *buf, const char *prefix,
    }
    else
    {
-      if (bind->joykey_label[0] != '\0' && settings->input.input_descriptor_label_show)
+      if (!string_is_empty(bind->joykey_label) && settings->input.input_descriptor_label_show)
          snprintf(buf, size, "%s%s (btn) ", prefix, bind->joykey_label);
       else
          snprintf(buf, size, "%s%u (btn) ", prefix, (unsigned)bind->joykey);
@@ -408,7 +409,7 @@ static void input_config_get_bind_string_joyaxis(char *buf, const char *prefix,
       dir = '+';
       axis = AXIS_POS_GET(bind->joyaxis);
    }
-   if (bind->joyaxis_label[0] != '\0' && settings->input.input_descriptor_label_show)
+   if (!string_is_empty(bind->joyaxis_label) && settings->input.input_descriptor_label_show)
       snprintf(buf, size, "%s%s (axis) ", prefix, bind->joyaxis_label);
    else
       snprintf(buf, size, "%s%c%u (axis) ", prefix, dir, axis);

input/input_remapping.c

@@ -13,9 +13,11 @@
  *  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include "input_remapping.h"
 #include <file/config_file.h>
 #include <file/file_path.h>
+#include <string/stdstring.h>
+
+#include "input_remapping.h"
 
 #include "../general.h"
 
@@ -33,7 +35,7 @@ bool input_remapping_load_file(void *data, const char *path)
    config_file_t *conf  = (config_file_t*)data;
    settings_t *settings = config_get_ptr();
 
-   if (!conf ||  path[0] == '\0')
+   if (!conf ||  string_is_empty(path))
       return false;
 
    strlcpy(settings->input.remapping_path, path,