Cleanup a few cases where isinf is used to get the signbit to improve the readability and maintainability and allow inlining.

2015-09-18  Wilco Dijkstra  <wdijkstr@arm.com>

        * math/w_tgamma.c (__ieee754_gamma_r): Use explicit sign check.
        * math/w_tgammaf.c (__ieee754_gammaf_r): Likewise.
        * math/w_tgammal.c (__ieee754_gammal_r): Likewise.
        * stdio-common/printf_fp.c (___printf_fp):
        Use signbit to get the sign. Use isinf macro to allow inlining.
        * stdio-common/printf_fphex.c (__printf_fphex): Likewise.
        * stdio-common/printf_size.c (__printf_size): Likewise.

1 files changed, 3 insertions, 7 deletions

diff --git a/stdio-common/printf_fphex.c b/stdio-common/printf_fphex.c
index 6c3b5e9723..0627beaacf 100644
--- a/stdio-common/printf_fphex.c
+++ b/stdio-common/printf_fphex.c
@@ -180,7 +180,7 @@ __printf_fphex (FILE *fp,
 	}
       else
 	{
-	  if (__isinfl (fpnum.ldbl))
+	  if (isinf (fpnum.ldbl))
 	    {
 	      if (isupper (info->spec))
 		{
@@ -204,7 +204,6 @@ __printf_fphex (FILE *fp,
       /* Check for special values: not a number or infinity.  */
       if (isnan (fpnum.dbl.d))
 	{
-	  negative = fpnum.dbl.ieee.negative != 0;
 	  if (isupper (info->spec))
 	    {
 	      special = "NAN";
@@ -218,8 +217,7 @@ __printf_fphex (FILE *fp,
 	}
       else
 	{
-	  int res = __isinf (fpnum.dbl.d);
-	  if (res)
+	  if (isinf (fpnum.dbl.d))
 	    {
 	      if (isupper (info->spec))
 		{
@@ -231,11 +229,9 @@ __printf_fphex (FILE *fp,
 		  special = "inf";
 		  wspecial = L"inf";
 		}
-	      negative = res < 0;
 	    }
-	  else
-	    negative = signbit (fpnum.dbl.d);
 	}
+      negative = signbit (fpnum.dbl.d);
     }
 
   if (special)