From 81512cb3f3c2747849a2a80f515be7ba9e77987f Mon Sep 17 00:00:00 2001
From: Jaroslav Kysela <perex@perex.cz>
Date: Mon, 26 Nov 2001 15:17:01 +0000
Subject: [PATCH] Added empty check functions for format and subformat mask

---
 src/pcm/pcm.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/src/pcm/pcm.c b/src/pcm/pcm.c
index 82a9a543..ede542ec 100644
--- a/src/pcm/pcm.c
+++ b/src/pcm/pcm.c
@@ -2359,6 +2359,17 @@ int snd_pcm_format_mask_test(const snd_pcm_format_mask_t *mask, snd_pcm_format_t
 	return snd_mask_test((const snd_mask_t *) mask, (unsigned long) val);
 }
 
+/**
+ * \brief test, if given a #snd_pcm_format_mask_t is empty
+ * \param mask pointer to mask
+ * \retval 0 not empty
+ * \retval 1 empty
+ */
+int snd_pcm_format_mask_empty(const snd_pcm_format_mask_t *mask)
+{
+	return snd_mask_empty((const snd_mask_t *) mask);
+}
+
 /**
  * \brief make a format present in a #snd_pcm_format_mask_t
  * \param mask pointer to mask
@@ -2451,6 +2462,17 @@ int snd_pcm_subformat_mask_test(const snd_pcm_subformat_mask_t *mask, snd_pcm_su
 	return snd_mask_test((const snd_mask_t *) mask, (unsigned long) val);
 }
 
+/**
+ * \brief test, if given a #snd_pcm_subformat_mask_t is empty
+ * \param mask pointer to mask
+ * \retval 0 not empty
+ * \retval 1 empty
+ */
+int snd_pcm_subformat_mask_empty(const snd_pcm_subformat_mask_t *mask)
+{
+	return snd_mask_empty((const snd_mask_t *) mask);
+}
+
 /**
  * \brief make a subformat present in a #snd_pcm_subformat_mask_t
  * \param mask pointer to mask
-- 
2.47.1