* bugs/algebra_vec_ne_op.cc: issues with algebra::vec operators. * bugs/lut.cc: issues with lookup table and level::transform. --- milena/sandbox/ChangeLog | 8 ++++++++ milena/sandbox/bugs/algebra_vec_ne_op.cc | 19 +++++++++++++++++++ milena/sandbox/bugs/lut.cc | 23 +++++++++++++++++++++++ 3 files changed, 50 insertions(+), 0 deletions(-) create mode 100644 milena/sandbox/bugs/algebra_vec_ne_op.cc create mode 100644 milena/sandbox/bugs/lut.cc diff --git a/milena/sandbox/ChangeLog b/milena/sandbox/ChangeLog index f6e6e15..ba700f8 100644 --- a/milena/sandbox/ChangeLog +++ b/milena/sandbox/ChangeLog @@ -1,3 +1,11 @@ +2009-04-07 Guillaume Lazzara <z@lrde.epita.fr> + + Add new known bugs in sandbox. + + * bugs/algebra_vec_ne_op.cc: issues with algebra::vec operators. + + * bugs/lut.cc: issues with lookup table and level::transform. + 2009-04-06 Guillaume Lazzara <z@lrde.epita.fr> Add a small tool to map text components to lines. diff --git a/milena/sandbox/bugs/algebra_vec_ne_op.cc b/milena/sandbox/bugs/algebra_vec_ne_op.cc new file mode 100644 index 0000000..aee31ed --- /dev/null +++ b/milena/sandbox/bugs/algebra_vec_ne_op.cc @@ -0,0 +1,19 @@ +/// Do not compile + + +# include <mln/algebra/vec.hh> +int main() +{ + using namespace mln::algebra; + vec<3, float> a, b; + + // Do NOT work + bool c = (a != b); + + // Work + c = !(a == b); + + // Work + c = (a == b); +} + diff --git a/milena/sandbox/bugs/lut.cc b/milena/sandbox/bugs/lut.cc new file mode 100644 index 0000000..d7e9ecb --- /dev/null +++ b/milena/sandbox/bugs/lut.cc @@ -0,0 +1,23 @@ +/// Passing a fun::i2v::array to level::Transform can lead to a segfault. +/// Through the dispatch of level::transform, a dispatch function detects that +/// we are using int_u8 as values, meaning a low quantification value type. +/// It tries to compute a look-up table (lut) which for each int_u8 value +/// (0-255), maps a new value computed thanks to the function. + +#include <mln/core/image/image2d.hh> +#include <mln/fun/i2v/array.hh> +#include <mln/value/int_u8.hh> +#include <mln/level/transform.hh> + +int main() +{ + using namespace mln; + + image2d<value::int_u8> ima(4, 4); + + /// This function can compute values for 0,1 and 2. + fun::i2v::array<bool> f(3, true); + + /// Crash, since the lut computes values for 0-255. + level::transform(ima, f); +} -- 1.5.6.5