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vm_insnhelper.c: fix indent [ci skip]

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65830 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
shyouhei 2018-11-20 05:58:12 +00:00
parent 34f3f916e6
commit b3b827664e
1 changed files with 21 additions and 21 deletions
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42
vm_insnhelper.c
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@ -3766,27 +3766,27 @@ static VALUE
fix_succ(VALUE x)
{
switch (x) {
case ~0UL:
/* 0xFFFF_FFFF == INT2FIX(-1)
* `-1.succ` is of course 0. */
return INT2FIX(0);
case RSHIFT(~0UL, 1):
/* 0x7FFF_FFFF == LONG2FIX(0x3FFF_FFFF)
* 0x3FFF_FFFF + 1 == 0x4000_0000, which is a Bignum. */
return rb_uint2big(1UL << (SIZEOF_LONG * CHAR_BIT - 2));
default:
/* LONG2FIX(FIX2LONG(x)+FIX2LONG(y))
* == ((lx*2+1)/2 + (ly*2+1)/2)*2+1
* == lx*2 + ly*2 + 1
* == (lx*2+1) + (ly*2+1) - 1
* == x + y - 1
*
* Here, if we put y := INT2FIX(1):
*
* == x + INT2FIX(1) - 1
* == x + 2 .
*/
return x + 2;
case ~0UL:
/* 0xFFFF_FFFF == INT2FIX(-1)
* `-1.succ` is of course 0. */
return INT2FIX(0);
case RSHIFT(~0UL, 1):
/* 0x7FFF_FFFF == LONG2FIX(0x3FFF_FFFF)
* 0x3FFF_FFFF + 1 == 0x4000_0000, which is a Bignum. */
return rb_uint2big(1UL << (SIZEOF_LONG * CHAR_BIT - 2));
default:
/* LONG2FIX(FIX2LONG(x)+FIX2LONG(y))
* == ((lx*2+1)/2 + (ly*2+1)/2)*2+1
* == lx*2 + ly*2 + 1
* == (lx*2+1) + (ly*2+1) - 1
* == x + y - 1
*
* Here, if we put y := INT2FIX(1):
*
* == x + INT2FIX(1) - 1
* == x + 2 .
*/
return x + 2;
}
}