Changeset e3272101 in mainline for uspace/lib/c/include/imath.h

Timestamp:

2019-02-11T14:08:52Z (6 years ago)

Author:

Matthieu Riolo <matthieu.riolo@…>

Children:

d5a89a3

Parents:

aa57bf7

Message:

make ilog10_u64() return an errno_t

The function ilog10_u64() used to return 0
for the value 0. Which is not correct. Either
NaN or -Infinity are correct, but not 0, since
it would be ambiguous with log(1). To ensure this
case the function ilog10_u64() has been changed
to return a errno_t indicating a failure.

File:

• uspace/lib/c/include/imath.h (modified) (1 diff)

uspace/lib/c/include/imath.h

@@ -40 +40 @@
 
 extern errno_t ipow10_u64(unsigned, uint64_t *);
-extern unsigned ilog10_u64(uint64_t);
+extern errno_t ilog10_u64(uint64_t, unsigned *);
 
 #endif