21 
  22 /*
  23  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
  24  */
  25 /*
  26  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  27  * Use is subject to license terms.
  28  */
  29 
  30 #if defined(ELFOBJ)
  31 #pragma weak nan = __nan
  32 #endif
  33 
  34 /*
  35  *  nan(c) returns a NaN.  This implementation ignores c.
  36  */
  37 
  38 #include "libm.h"
  39 #include <sys/isa_defs.h>
  40 
  41 #if defined(_BIG_ENDIAN)
  42 
  43 static const union {
  44         unsigned i[2];
  45         double d;
  46 } __nan_union = { 0x7fffffff, 0xffffffff };
  47 
  48 #else
  49 
  50 static const union {
  51         unsigned i[2];
  52         double d;
  53 } __nan_union = { 0xffffffff, 0x7fffffff };
  54 


  55 #endif
  56 
  57 /* ARGSUSED0 */
  58 double
  59 __nan(const char *c) {
  60         return (__nan_union.d);
  61 }

  21 
  22 /*
  23  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
  24  */
  25 /*
  26  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  27  * Use is subject to license terms.
  28  */
  29 
  30 #if defined(ELFOBJ)
  31 #pragma weak nan = __nan
  32 #endif
  33 
  34 /*
  35  *  nan(c) returns a NaN.  This implementation ignores c.
  36  */
  37 
  38 #include "libm.h"
  39 #include <sys/isa_defs.h>
  40 
  41 #if defined(__sparc)
  42 
  43 static const union {
  44         unsigned i[2];
  45         double d;
  46 } __nan_union = { 0x7fffffff, 0xffffffff };
  47 
  48 #elif defined(__i386) || defined(__amd64)
  49 
  50 static const union {
  51         unsigned i[2];
  52         double d;
  53 } __nan_union = { 0xffffffff, 0x7fffffff };
  54 
  55 #else
  56 #error Unknown architecture
  57 #endif
  58 
  59 /* ARGSUSED0 */
  60 double
  61 __nan(const char *c) {
  62         return (__nan_union.d);
  63 }