Fix link problems

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@24 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 49 insertions, 37 deletions

diff --git a/nuttx/lib/lib_rint.c b/nuttx/lib/lib_rint.c
index 632c6632d..a0f7dbd4f 100644
--- a/nuttx/lib/lib_rint.c
+++ b/nuttx/lib/lib_rint.c
@@ -41,6 +41,7 @@
  * Included Files
  ************************************************************/
 
+#include <nuttx/config.h>
 #include <sys/types.h>
 #include <stdlib.h>
 
@@ -74,50 +75,61 @@
 
 double_t rint(double_t x)
 {
-  double_t retValue;
+  double_t ret;
 
-/* If the current rounding mode rounds toward negative
- * infinity, rint() is identical to floor().  If the current
- * rounding mode rounds toward positive infinity, rint() is
- * identical to ceil(). */
-#if ((defined(FP_ROUND_POSITIVE)) && (FP_ROUNDING_POSITIVE != 0))
-  retValue = ceil(x);
+  /* If the current rounding mode rounds toward negative
+   * infinity, rint() is identical to floor().  If the current
+   * rounding mode rounds toward positive infinity, rint() is
+   * identical to ceil().
+   */
 
-#elif ((defined(FP_ROUND_NEGATIVE)) && (FP_ROUNDING_NEGATIVE != 0))
-  retValue = floor(x);
+#if defined(CONFIG_FP_ROUND_POSITIVE) && CONFIG_FP_ROUNDING_POSITIVE != 0
 
-#else
-
-  /* In the default rounding mode (round to nearest), rint(x) is the
-   * integer nearest x with the additional stipulation that if
-   * |rint(x)-x|=1/2, then rint(x) is even. */
-
-  long dwInteger = (long)x;
-  double_t fRemainder = x - (double_t)dwInteger;
+  ret = ceil(x);
 
-  if (x < 0.0) {
+#elif defined(CONFIG_FP_ROUND_NEGATIVE) && CONFIG_FP_ROUNDING_NEGATIVE != 0
 
-    /* fRemainder should be in range 0 .. -1 */
-    if (fRemainder == -0.5)
-      dwInteger = ((dwInteger+1)&~1);
-    else if (fRemainder < -0.5) {
-      dwInteger--;
+  ret = floor(x);
 
-    } /* end if */
-  } /* end if */
-  else {
-
-    /* fRemainder should be in range 0 .. 1 */
-    if (fRemainder == 0.5)
-      dwInteger = ((dwInteger+1)&~1);
-    else  if (fRemainder > 0.5) {
-      dwInteger++;
-
-    } /* end if */
-  } /* end else */
+#else
 
-  retValue = (double_t)dwInteger;
+  /* In the default rounding mode (round to nearest), rint(x) is the
+   * integer nearest x with the additional stipulation that if
+   * |rint(x)-x|=1/2, then rint(x) is even.
+   */
+
+  long     dwinteger  = (long)x;
+  double_t fremainder = x - (double_t)dwinteger;
+
+  if (x < 0.0)
+    {
+      /* fremainder should be in range 0 .. -1 */
+
+      if (fremainder == -0.5)
+        {
+          dwinteger = ((dwinteger+1)&~1);
+        }
+      else if (fremainder < -0.5)
+        {
+          dwinteger--;
+        }
+    }
+  else
+    {
+      /* fremainder should be in range 0 .. 1 */
+
+      if (fremainder == 0.5)
+        {
+          dwinteger = ((dwinteger+1)&~1);
+        }
+      else if (fremainder > 0.5)
+        {
+          dwinteger++;
+        }
+    }
+
+  ret = (double_t)dwinteger;
 #endif
 
-  return retValue;
+  return ret;
 }