fix: use slong instead of long for arb accuracy

Fixes a bug seen under Windows where 32 bit long caused showgood to fail.
There are more places where long should be changed to slong but this
change is enough to get the full test suite to pass on Windows

Author: oscarbenjamin

src/flint/_flint.pxd

@@ -969,8 +969,8 @@ cdef extern from "arb.h":
     void arb_get_ubound_arf(arf_t u, const arb_t z, long prec)
     void arb_get_lbound_arf(arf_t u, const arb_t z, long prec)
     void arb_nonnegative_part(arb_t u, const arb_t x)
-    long arb_rel_error_bits(const arb_t x)
-    long arb_rel_accuracy_bits(const arb_t x)
+    slong arb_rel_error_bits(const arb_t x)
+    slong arb_rel_accuracy_bits(const arb_t x)
     long arb_bits(const arb_t x)
     void arb_randtest_exact(arb_t x, flint_rand_t state, long prec, long mag_bits)
     void arb_randtest_wide(arb_t x, flint_rand_t state, long prec, long mag_bits)

src/flint/functions.pyx

@@ -24,8 +24,8 @@ cdef goodstr(x):
         return x.str(radius=False)
     raise TypeError("must have arb or acb")
 
-def good(func, long prec=0, long maxprec=0, long dps=0,
-        long maxdps=0, long padding=10, bint verbose=False, bint show=False, bint parts=True, metric=None):
+def good(func, slong prec=0, slong maxprec=0, slong dps=0,
+        slong maxdps=0, slong padding=10, bint verbose=False, bint show=False, bint parts=True, metric=None):
     """
     Evaluates *func*, automatically increasing the precision to get
     a result accurate to the current working precision (or the
@@ -53,7 +53,7 @@ def good(func, long prec=0, long maxprec=0, long dps=0,
 
 
     """
-    cdef long orig, morebits, acc
+    cdef slong orig, morebits, acc
 
     if dps > 0:
         prec = dps_to_prec(dps)