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11210 libm should be cstyle(1ONBLD) clean
@@ -20,10 +20,11 @@
*/
/*
* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
*/
+
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
@@ -31,50 +32,61 @@
#include "libm.h"
#include <float.h> /* LDBL_MAX, LDBL_MIN */
#if defined(__sparc)
-#define XSET_EXP(k, x) ((int *) &x)[0] = (((int *) &x)[0] & ~0x7fff0000) | \
- (k << 16)
+#define XSET_EXP(k, x) ((int *)&x)[0] = (((int *)&x)[0] & \
+ ~0x7fff0000) | (k << 16)
#define ISINFNANL(k, x) (k == 0x7fff)
#define XTWOT_OFFSET 113
-static const long double xtwot = 10384593717069655257060992658440192.0L,
- /* 2^113 */
+
+static const long double
+ xtwot = 10384593717069655257060992658440192.0L, /* 2^113 */
twomtm1 = 4.814824860968089632639944856462318296E-35L; /* 2^-114 */
#elif defined(__x86)
-#define XSET_EXP(k, x) ((int *) &x)[2] = (((int *) &x)[2] & ~0x7fff) | k
+#define XSET_EXP(k, x) ((int *)&x)[2] = (((int *)&x)[2] & \
+ ~0x7fff) | k
#if defined(HANDLE_UNSUPPORTED)
-#define ISINFNANL(k, x) (k == 0x7fff || \
- (k != 0 && (((int *) &x)[1] & 0x80000000) == 0))
+#define ISINFNANL(k, x) (k == 0x7fff || (k != 0 && \
+ (((int *)&x)[1] & 0x80000000) == 0))
#else
#define ISINFNANL(k, x) (k == 0x7fff)
#endif
#define XTWOT_OFFSET 64
+
static const long double xtwot = 18446744073709551616.0L, /* 2^64 */
twomtm1 = 2.7105054312137610850186E-20L; /* 2^-65 */
#endif
long double
-scalblnl(long double x, long n) {
+scalblnl(long double x, long n)
+{
int k = XBIASED_EXP(x);
if (ISINFNANL(k, x))
return (x + x);
+
if (ISZEROL(x) || n == 0)
return (x);
+
if (k == 0) {
x *= xtwot;
k = XBIASED_EXP(x) - XTWOT_OFFSET;
}
- k += (int) n;
+
+ k += (int)n;
+
if (n > 50000 || k > 0x7ffe)
return (LDBL_MAX * copysignl(LDBL_MAX, x));
+
if (n < -50000 || k <= -XTWOT_OFFSET - 1)
return (LDBL_MIN * copysignl(LDBL_MIN, x));
+
if (k > 0) {
XSET_EXP(k, x);
return (x);
}
+
k += XTWOT_OFFSET + 1;
XSET_EXP(k, x);
return (x * twomtm1);
}