Use NEG_CAST

Author: Marco Bodrato

mpf/fits_s.h

@@ -67,5 +67,5 @@ FUNCTION (mpf_srcptr f) __GMP_NOTHROW
   else
     return 0;
 
-  return fl <= (fs >= 0 ? (mp_limb_t) MAXIMUM : - (mp_limb_t) MINIMUM);
+  return fl <= (fs >= 0 ? (mp_limb_t) MAXIMUM : NEG_CAST (mp_limb_t, MINIMUM));
 }

mpn/generic/get_d.c

@@ -384,7 +384,7 @@ mpn_get_d (mp_srcptr up, mp_size_t size, mp_size_t sign, long exp)
       else
 	{
 	  weight = 0.5;
-	  uexp = 1 - (unsigned long) (exp + 1);
+	  uexp = NEG_CAST (unsigned long, exp);
 	}
 #if 1
       /* Square-and-multiply exponentiation.  */

scanf/doscan.c

@@ -401,7 +401,7 @@ gmpscan (const struct gmp_doscan_funs_t *funs, void *data,
 	      if (exp >= 0)
 		mpf_mul_2exp (f, f, (unsigned long) exp);
 	      else
-		mpf_div_2exp (f, f, - (unsigned long) exp);
+		mpf_div_2exp (f, f, NEG_CAST (unsigned long, exp));
 	    }
 	}
 	break;