uitils: add floored and euclidian modulo functions
C/C++ only implements a so called "truncated modulo" function. Lets also
add a floored and an euclidian modulo function to be more complete.
The functions will be used to generalize the following Change:
I5fb2b0ada8d409730ac22963741fb4ab0026abdd
Change-Id: If61cd54f43643325c45f64531c57fe4c5802a9cf
diff --git a/tests/utils/utils_test.ok b/tests/utils/utils_test.ok
index 1409d81..3f453e9 100644
--- a/tests/utils/utils_test.ok
+++ b/tests/utils/utils_test.ok
@@ -354,6 +354,36 @@
Testing integer square-root
+Testing built in truncated modulo for comparison:
+ 8 mod 3 = 2 = 2
+ 8 mod -3 = 2 = 2
+ -8 mod 3 = -2 = -2
+ -8 mod -3 = -2 = -2
+ 1 mod 2 = 1 = 1
+ 1 mod -2 = 1 = 1
+ -1 mod 2 = -1 = -1
+ -1 mod -2 = -1 = -1
+
+Testing OSMO_MOD_FLR():
+ 8 mod_flr 3 = 2 = 2
+ 8 mod_flr -3 = -1 = -1
+ -8 mod_flr 3 = 1 = 1
+ -8 mod_flr -3 = -2 = -2
+ 1 mod_flr 2 = 1 = 1
+ 1 mod_flr -2 = -1 = -1
+ -1 mod_flr 2 = 1 = 1
+ -1 mod_flr -2 = -1 = -1
+
+Testing OSMO_MOD_EUC():
+ 8 mod_euc 3 = 2 = 2
+ 8 mod_euc -3 = 2 = 2
+ -8 mod_euc 3 = 1 = 1
+ -8 mod_euc -3 = 1 = 1
+ 1 mod_euc 2 = 1 = 1
+ 1 mod_euc -2 = 1 = 1
+ -1 mod_euc 2 = 1 = 1
+ -1 mod_euc -2 = 1 = 1
+
osmo_sockaddr_to_str_and_uint_test
[0] [0.0.0.0]:0 addr_len=20 --> [0.0.0.0]:0 rc=7
[1] [255.255.255.255]:65535 addr_len=20 --> [255.255.255.255]:65535 rc=15