Tests for c division CEP 516

tests/run/cdivision_CEP_516.pyx

+__doc__ = u"""
+>>> v = [(17, 10), (-17, 10), (-17, -10), (17, -10)]
+>>> standard = [(a % b) for a, b in v]
+>>> standard
+[7, 3, -7, -3]
+>>> [mod_int_py(a, b) for a, b in v] == standard
+True
+>>> [mod_short_py(a, b) for a, b in v] == standard
+True
+>>> [mod_float_py(a, b) for a, b in v] == standard
+True
+>>> [mod_double_py(a, b) for a, b in v] == standard
+True
+
+>>> [mod_int_c(a, b) for a, b in v]
+[7, -7, -7, 7]
+>>> [mod_float_c(a, b) for a, b in v]
+[7.0, -7.0, -7.0, 7.0]
+>>> [mod_double_c(a, b) for a, b in v]
+[7.0, -7.0, -7.0, 7.0]
+"""
+
+cimport cython
+
+@cython.cdivision(False)
+def mod_int_py(int a, int b):
+    return a % b
+
+@cython.cdivision(False)
+def mod_short_py(short a, short b):
+    return a % b
+
+@cython.cdivision(False)
+def mod_double_py(double a, double b):
+    return a % b
+
+@cython.cdivision(False)
+def mod_float_py(float a, float b):
+    return a % b
+
+@cython.cdivision(True)
+def mod_int_c(int a, int b):
+    return a % b
+
+@cython.cdivision(True)
+def mod_float_c(float a, float b):
+    return a % b
+
+@cython.cdivision(True)
+def mod_double_c(double a, double b):
+    return a % b
+