From: Jaroslav Kysela <perex@perex.cz>
Date: Mon, 26 Nov 2001 15:17:01 +0000 (+0000)
Subject: Added empty check functions for format and subformat mask
X-Git-Tag: v1.0.3~571
X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=81512cb3f3c2747849a2a80f515be7ba9e77987f;p=alsa-lib.git

Added empty check functions for format and subformat mask
---

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