Merge "Explain why we have significandl.c at all." into main am: d0d43effa9
Original change: https://android-review.googlesource.com/c/platform/bionic/+/3180401
Change-Id: Iffbc2a410805e306c8d1553ae829227bd4d315af
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/libm/significandl.c b/libm/significandl.c
index c5d7dd4..b672110 100644
--- a/libm/significandl.c
+++ b/libm/significandl.c
@@ -22,11 +22,13 @@
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
- *
*/
#include <math.h>
+// This function is only in glibc.
+// musl and NetBSD/OpenBSD just have the double and float variants,
+// while FreeBSD and iOS/macOS have none.
long double significandl(long double x) {
return scalbnl(x, -ilogbl(x));
}