Expand bit pretty-printer
Add OSMO_BIT_PRINT_EX() which is like OSMO_BIT_PRINT() but allows to
specify character to be printed for set bits. It's useful to print bytes
used as mask where set bit has particular semantics - for example TS
mask in OsmoPCU.
Change-Id: I72528bc1e376134c5a7b6e7a50c48e38c3f48b0a
Related: OS#2282
diff --git a/include/osmocom/core/bits.h b/include/osmocom/core/bits.h
index 17fe1c6..c6a142f 100644
--- a/include/osmocom/core/bits.h
+++ b/include/osmocom/core/bits.h
@@ -69,15 +69,17 @@
(byte & 0x01 ? 1 : 0)
#define OSMO_BIT_SPEC "%c%c%c%c%c%c%c%c"
-#define OSMO_BIT_PRINT(byte) \
- (byte & 0x80 ? '1' : '.'), \
- (byte & 0x40 ? '1' : '.'), \
- (byte & 0x20 ? '1' : '.'), \
- (byte & 0x10 ? '1' : '.'), \
- (byte & 0x08 ? '1' : '.'), \
- (byte & 0x04 ? '1' : '.'), \
- (byte & 0x02 ? '1' : '.'), \
- (byte & 0x01 ? '1' : '.')
+#define OSMO_BIT_PRINT_EX(byte, ch) \
+ (byte & 0x80 ? ch : '.'), \
+ (byte & 0x40 ? ch : '.'), \
+ (byte & 0x20 ? ch : '.'), \
+ (byte & 0x10 ? ch : '.'), \
+ (byte & 0x08 ? ch : '.'), \
+ (byte & 0x04 ? ch : '.'), \
+ (byte & 0x02 ? ch : '.'), \
+ (byte & 0x01 ? ch : '.')
+
+#define OSMO_BIT_PRINT(byte) OSMO_BIT_PRINT_EX(byte, '1')
/* BIT REVERSAL */