Use default expanded exponent range by default.

setup.py

@@ -31,7 +31,7 @@ class Gmpy2Build(build_ext):
 
     def initialize_options(self):
         build_ext.initialize_options(self)
-        self.fast = False
+        self.fast = True
         self.gcov = False
         self.vector = False
         self.static = False

src/gmpy2.c

@@ -658,6 +658,10 @@ PyMODINIT_FUNC PyInit_gmpy2(void)
         return NULL;;
         /* LCOV_EXCL_STOP */
     }
+
+    /* Set precision to maximum and minimum values. */
+    mpfr_set_emax(MPFR_EMAX_MAX);
+    mpfr_set_emin(MPFR_EMIN_MIN);
 
     /* Initialize exceptions. */
     GMPyExc_GmpyError = PyErr_NewException("gmpy2.gmpy2Error", PyExc_ArithmeticError, NULL);

src/gmpy2_abs.c

@@ -129,9 +129,10 @@ static PyObject *
 GMPy_Real_AbsWithType(PyObject *x, int xtype, CTXT_Object *context)
 {
     MPFR_Object *result = NULL, *tempx = NULL;
+    mpfr_exp_t _oldemin, _oldemax;
 
     CHECK_CONTEXT(context);
-
+    
     if (!(tempx = GMPy_MPFR_From_RealWithType(x, xtype, 1, context)) ||
         !(result = GMPy_MPFR_New(0, context))) {
         /* LCOV_EXCL_START */
@@ -142,10 +143,18 @@ GMPy_Real_AbsWithType(PyObject *x, int xtype, CTXT_Object *context)
     }
 
     mpfr_clear_flags();
+
+    _oldemin = mpfr_get_emin();
+    _oldemax = mpfr_get_emax();
+	mpfr_set_emin(GET_EMIN(context));
+	mpfr_set_emax(GET_EMAX(context));
 
     result->rc = mpfr_abs(result->f, tempx->f, GET_MPFR_ROUND(context));
     Py_DECREF((PyObject*)tempx);
 
+	mpfr_set_emin(_oldemin);
+	mpfr_set_emax(_oldemax);
+
     _GMPy_MPFR_Cleanup(&result, context);
     return (PyObject*)result;
 }

src/gmpy2_context.c

@@ -63,8 +63,8 @@ GMPy_CTXT_New(void)
     if ((result = PyObject_New(CTXT_Object, &CTXT_Type))) {
         result->ctx.mpfr_prec = DBL_MANT_DIG;
         result->ctx.mpfr_round = MPFR_RNDN;
-        result->ctx.emax = MPFR_EMAX_DEFAULT;
-        result->ctx.emin = MPFR_EMIN_DEFAULT;
+        result->ctx.emax = MPFR_EMAX_MAX;
+        result->ctx.emin = MPFR_EMIN_MIN;
         result->ctx.subnormalize = 0;
         result->ctx.underflow = 0;
         result->ctx.overflow = 0;

src/gmpy2_context.h

@@ -79,6 +79,9 @@ static PyTypeObject CTXT_Type;
 #define GET_IMAG_ROUND(c) ((c->ctx.imag_round==GMPY_DEFAULT)?GET_REAL_ROUND(c):c->ctx.imag_round)
 #define GET_MPC_ROUND(c) (MPC_RND(GET_REAL_ROUND(c), GET_IMAG_ROUND(c)))
 
+#define GET_EMIN(c) (c->ctx.emin)
+#define GET_EMAX(c) (c->ctx.emax)
+
 #define GET_DIV_MODE(c) (c->ctx.rational_division)
 
 #define GET_THREAD_MODE(c) (c->ctx.allow_release_gil)