Re: [PATCH 03/15] virBitmapToString|virBitmapNewString: Clarify semantics of the 'string'

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On a Friday in 2020, Peter Krempa wrote:
Clarify which bit is considered most significant in the bitmap and
resulting string. Also be explicit that it's a hex string.

Signed-off-by: Peter Krempa <pkrempa@xxxxxxxxxx>
---
src/util/virbitmap.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/util/virbitmap.c b/src/util/virbitmap.c
index ad5213f216..fcb8e1101a 100644
--- a/src/util/virbitmap.c
+++ b/src/util/virbitmap.c
@@ -328,7 +328,9 @@ virBitmapGetBit(virBitmapPtr bitmap,
 * virBitmapToString:
 * @bitmap: Pointer to bitmap
 *
- * Convert @bitmap to printable string.
+ * Convert @bitmap to printable hexadecimal string representation. Note that bit
+ * with highest position/index in @bitmap are considered as most significant bit
+ * in the output string.

the bits ... are considered
 or
the bit ... is considered

would mentioning that it is printed at the leftmost position be clearer?

 *
 * Returns pointer to the string or NULL on error.
 */
@@ -1117,10 +1119,13 @@ virBitmapCountBits(virBitmapPtr bitmap)
 * virBitmapNewString:
 * @string: the string to be converted to a bitmap
 *
- * Allocate a bitmap from a string of hexadecimal data.
+ * Allocate a bitmap and populate it from a string of hexadecimal data. Note
+ * that leftmost character in the string will correspond to the highest
+ * index/position in the bitmap. The size of the returned bitmap corresponds to
+ * 4 * the length of @string.
 *
- * Returns a pointer to the allocated bitmap or NULL if
- * memory cannot be allocated.
+ * Returns a pointer to the allocated bitmap or NULL and reports an error if
+ * @string can't be converted.
 */
virBitmapPtr
virBitmapNewString(const char *string)

Reviewed-by: Ján Tomko <jtomko@xxxxxxxxxx>

Jano

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