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* pack.c (swapd): remove duplicated code.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30492 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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akr 2011-01-08 11:52:11 +00:00
parent b85ed255fa
commit 13c4c551d1
2 changed files with 9 additions and 21 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
Sat Jan 8 20:51:25 2011 Tanaka Akira <akr@fsij.org>
* pack.c (swapd): remove duplicated code.
Sat Jan 8 19:28:55 2011 Tanaka Akira <akr@fsij.org>
* thread.c: parenthesize macro arguments.

26
pack.c
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@ -160,35 +160,19 @@ TOKEN_PASTE(swap,x)(xtype z) \
# define swapd(x) swap64(x)
# define DOUBLE_SWAPPER uint64_t
# else
# if SIZEOF_LONG == 4 /* SIZEOF_DOUBLE == 8 && 4 == SIZEOF_LONG */
# if HAVE_INT32_T /* SIZEOF_DOUBLE == 8 && 4 == SIZEOF_INT32 */
static double
swapd(const double d)
{
double dtmp = d;
unsigned long utmp[2];
unsigned long utmp0;
uint32_t utmp[2];
uint32_t utmp0;
utmp[0] = 0; utmp[1] = 0;
memcpy(utmp,&dtmp,sizeof(double));
utmp0 = utmp[0];
utmp[0] = swapl(utmp[1]);
utmp[1] = swapl(utmp0);
memcpy(&dtmp,utmp,sizeof(double));
return dtmp;
}
# elif SIZEOF_SHORT == 4 /* SIZEOF_DOUBLE == 8 && 4 == SIZEOF_SHORT */
static double
swapd(const double d)
{
double dtmp = d;
unsigned short utmp[2];
unsigned short utmp0;
utmp[0] = 0; utmp[1] = 0;
memcpy(utmp,&dtmp,sizeof(double));
utmp0 = utmp[0];
utmp[0] = swaps(utmp[1]);
utmp[1] = swaps(utmp0);
utmp[0] = swap32(utmp[1]);
utmp[1] = swap32(utmp0);
memcpy(&dtmp,utmp,sizeof(double));
return dtmp;
}