diff options
| -rw-r--r-- | coregrind/m_libcbase.c | 1 | ||||
| -rw-r--r-- | include/pub_tool_libcbase.h | 2 |
2 files changed, 2 insertions, 1 deletions
diff --git a/coregrind/m_libcbase.c b/coregrind/m_libcbase.c index 4a5309522..cd620cc97 100644 --- a/coregrind/m_libcbase.c +++ b/coregrind/m_libcbase.c @@ -413,6 +413,7 @@ Int VG_(memcmp) ( const void* s1, const void* s2, SizeT n ) Misc useful functions ------------------------------------------------------------------ */ +/* Returns the base-2 logarithm of x. Returns -1 if x is not a power of two. */ Int VG_(log2) ( Int x ) { Int i; diff --git a/include/pub_tool_libcbase.h b/include/pub_tool_libcbase.h index cc1a55e37..f9d0eeec5 100644 --- a/include/pub_tool_libcbase.h +++ b/include/pub_tool_libcbase.h @@ -111,7 +111,7 @@ extern Int VG_(memcmp) ( const void* s1, const void* s2, SizeT n ); extern void VG_(ssort)( void* base, SizeT nmemb, SizeT size, Int (*compar)(void*, void*) ); -/* Returns the base-2 logarithm of x. */ +/* Returns the base-2 logarithm of x. Returns -1 if x is not a power of two. */ extern Int VG_(log2) ( Int x ); // A pseudo-random number generator returning a random UInt. If pSeed |