import newlib-2000-02-17 snapshot

1 files changed, 38 insertions, 0 deletions

diff --git a/newlib/libm/mathfp/s_ceil.c b/newlib/libm/mathfp/s_ceil.c
new file mode 100644
index 000000000..c6ecbe323
--- /dev/null
+++ b/newlib/libm/mathfp/s_ceil.c
@@ -0,0 +1,38 @@
+
+/* @(#)z_ceil.c 1.0 98/08/13 */
+/*****************************************************************
+ * ceil
+ *
+ * Input:
+ *   x  - floating point value
+ *
+ * Output:
+ *   Smallest integer greater than x.
+ *
+ * Description:
+ *   This routine returns the smallest integer greater than x.
+ *
+ *****************************************************************/
+
+#include "fdlibm.h"
+#include "zmath.h"
+
+#ifndef _DOUBLE_IS_32BITS
+
+double
+_DEFUN (ceil, (double),
+        double x)
+{
+  double f, y;
+
+  y = modf (x, &f);
+
+  if (y == 0.0)
+    return (x);
+  else if (x > -1.0 && x < 1.0)
+    return (x > 0 ? 1.0 : 0.0);
+  else
+    return (x > 0 ? f + 1.0 : f);
+}
+
+#endif /* _DOUBLE_IS_32BITS */