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11210 libm should be cstyle(1ONBLD) clean
@@ -20,45 +20,51 @@
*/
/*
* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
*/
+
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma weak __roundf = roundf
#include "libm.h"
float
-roundf(float x) {
+roundf(float x)
+{
union {
unsigned i;
float f;
} xx;
+
unsigned hx, sx, i;
xx.f = x;
hx = xx.i & ~0x80000000;
sx = xx.i & 0x80000000;
+
if (hx < 0x4b000000) { /* |x| < 2^23 */
if (hx < 0x3f800000) { /* |x| < 1 */
if (hx >= 0x3f000000)
return (sx ? -1.0F : 1.0F);
+
return (sx ? -0.0F : 0.0F);
}
/* round x at the integer bit */
i = 1 << (0x95 - (hx >> 23));
xx.i = (xx.i + i) & ~((i << 1) - 1);
return (xx.f);
- } else if (hx < 0x7f800000) /* |x| is integral */
+ } else if (hx < 0x7f800000) { /* |x| is integral */
return (x);
- else
+ } else {
#if defined(FPADD_TRAPS_INCOMPLETE_ON_NAN)
return (hx > 0x7f800000 ? x * x : x + x);
#else
return (x + x);
#endif
+ }
}