commit 89099b0cf7028eedf125bcef6a1daa30e4a7f6ec
author Gael Guennebaud <g.gael@free.fr> Wed Jun 01 17:00:08 2016 +0200
committer Gael Guennebaud <g.gael@free.fr> Wed Jun 01 17:00:08 2016 +0200
tree 5d7078db2c293c3f2cdca4cd464fdd8f60462ef8
parent afd33539dde5611431696df93ffec84707c87e68

Expose log1p to Array.

test/array.cpp

diff --git a/test/array.cpp b/test/array.cpp
index f9a8a68..39a7b85 100644
--- a/test/array.cpp
+++ b/test/array.cpp
@@ -244,6 +244,7 @@
   VERIFY_IS_APPROX(m3.sqrt(), sqrt(abs(m1)));
   VERIFY_IS_APPROX(m3.rsqrt(), Scalar(1)/sqrt(abs(m1)));
   VERIFY_IS_APPROX(m3.log(), log(m3));
+  VERIFY_IS_APPROX(m3.log1p(), log1p(m3));
   VERIFY_IS_APPROX(m3.log10(), log10(m3));
 
 
@@ -275,6 +276,7 @@
   // shift argument of logarithm so that it is not zero
   Scalar smallNumber = NumTraits<Scalar>::dummy_precision();
   VERIFY_IS_APPROX((m3 + smallNumber).log() , log(abs(m1) + smallNumber));
+  VERIFY_IS_APPROX((m3 + smallNumber + 1).log() , log1p(abs(m1) + smallNumber));
 
   VERIFY_IS_APPROX(m1.exp() * m2.exp(), exp(m1+m2));
   VERIFY_IS_APPROX(m1.exp(), exp(m1));