Merge pull request #289 from isuruf/int

Fix converting large Integers to python ints

Author: isuruf

.travis.yml

@@ -16,9 +16,6 @@ addons:
     - g++-4.7
 
 env:
-  global:
-    - secure: "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"
-
   ## All these variables are sent into the bin/test_travis.sh script. See this
   ## script to know how they are used. Most of them are just passed to cmake,
   ## so if they are not set, cmake will use a default value. For the rest, the
@@ -27,7 +24,7 @@ env:
   ## executed.
   matrix:
   # Debug builds:
-  - BUILD_TYPE="Debug" WITH_BFD="yes" PYTHON_VERSION="2.7" TRIGGER_FEEDSTOCK="yes" TEST_SYMPY="yes"
+  - BUILD_TYPE="Debug" WITH_BFD="yes" PYTHON_VERSION="2.7" TEST_SYMPY="yes"
   - BUILD_TYPE="Debug" WITH_BFD="yes" PYTHON_VERSION="3.6" TEST_SYMPY="yes"
 
   # Release builds:
@@ -53,24 +50,26 @@ matrix:
           packages:
           - binutils-dev
           - g++-4.8
-    - env: BUILD_TYPE="Debug" WITH_BFD="yes" PYTHON_VERSION="3.5" WITH_LLVM="3.8" WITH_SCIPY="yes" BUILD_SHARED_LIBS="yes"
+    - env: BUILD_TYPE="Debug" WITH_BFD="yes" PYTHON_VERSION="3.5" BUILD_SHARED_LIBS="yes"
+      compiler: clang
+      os: linux
+    - env: BUILD_TYPE="Release" PYTHON_VERSION="2.7" WITH_NUMPY="no"
       compiler: clang
       os: linux
+    - env: BUILD_TYPE="Debug" PYTHON_VERSION="3.6" WITH_SYMPY="no" WITH_LLVM="8.0" WITH_SCIPY="yes" CC="gcc-4.8" CXX="g++-4.8"
+      compiler: gcc
+      os: linux
       addons:
         apt:
           sources:
           - ubuntu-toolchain-r-test
+          - llvm-toolchain-trusty-8
           packages:
-          - clang
+          - g++-4.8
           - libstdc++-4.8-dev
           - binutils-dev
-    - env: BUILD_TYPE="Release" PYTHON_VERSION="2.7" WITH_NUMPY="no"
-      compiler: clang
-      os: linux
-    - env: BUILD_TYPE="Debug" PYTHON_VERSION="3.6" WITH_SYMPY="no"
-      compiler: gcc
-      os: linux
-    - env: BUILD_TYPE="Debug" PYTHON_VERSION="2.7"
+          - llvm-8-dev
+    - env: BUILD_TYPE="Debug" PYTHON_VERSION="2.7" WITH_LLVM="5.0" WITH_SCIPY="yes"
       compiler: clang
       os: osx
     - env: BUILD_TYPE="Release" PYTHON_VERSION="3.5" WITH_NUMPY="no"

bin/install_travis.sh

@@ -1,9 +1,8 @@
 #!/usr/bin/env bash
 
 # symengine's bin/install_travis.sh will install miniconda
-conda update -q -n root conda
 
-export conda_pkgs="python=${PYTHON_VERSION} pip cython nose pytest"
+export conda_pkgs="python=${PYTHON_VERSION} pip cython pytest gmp mpfr"
 
 if [[ "${WITH_SYMPY}" != "no" ]]; then
     export conda_pkgs="${conda_pkgs} sympy";

bin/test_travis.sh

@@ -9,9 +9,7 @@ set -x
 python setup.py install build_ext --inplace --symengine-dir=$our_install_dir
 
 # Test python wrappers
-nosetests -v
-# If switching to py.test, the following collects correct tests:
-#py.test -v $PYTHON_SOURCE_DIR/symengine/tests/test_*.py
+py.test -s -v $PYTHON_SOURCE_DIR/symengine/tests/test_*.py
 mkdir -p empty && cd empty
 python $PYTHON_SOURCE_DIR/bin/test_python.py
 cd ..

symengine/lib/symengine_wrapper.pyx

@@ -1722,7 +1722,7 @@ class Integer(Rational):
             return sage.Integer(str(self))
 
     def __int__(Basic self):
-        return symengine.mp_get_si(deref(symengine.rcp_static_cast_Integer(self.thisptr)).as_integer_class())
+        return int(str(self))
 
     @property
     def p(self):

symengine/tests/test_number.py

@@ -15,8 +15,10 @@ def test_integer():
 
 
 def test_integer_long():
-    i = Integer(123434444444444444444)
-    assert str(i) == "123434444444444444444"
+    py_int = 123434444444444444444
+    i = Integer(py_int)
+    assert str(i) == str(py_int)
+    assert int(i) == py_int
 
 
 def test_integer_string():

symengine_version.txt

@@ -1 +1 @@
-v0.4.0
+c66b8c50bb481c51ce128b768b056454aa6dc67a