uv

来自「source of perl for linux application,」· 代码 · 共 130 行

################################################################################
##
##  $Revision: 15 $
##  $Author: mhx $
##  $Date: 2007/08/12 15:53:17 +0200 $
##
################################################################################
##
##  Version 3.x, Copyright (C) 2004-2007, Marcus Holland-Moritz.
##  Version 2.x, Copyright (C) 2001, Paul Marquess.
##  Version 1.x, Copyright (C) 1999, Kenneth Albanowski.
##
##  This program is free software; you can redistribute it and/or
##  modify it under the same terms as Perl itself.
##
################################################################################

=provides

__UNDEFINED__
SvUOK

=implementation

__UNDEFINED__  sv_setuv(sv, uv)                     \
               STMT_START {                         \
                 UV TeMpUv = uv;                    \
                 if (TeMpUv <= IV_MAX)              \
                   sv_setiv(sv, TeMpUv);            \
                 else                               \
                   sv_setnv(sv, (double)TeMpUv);    \
               } STMT_END

__UNDEFINED__  newSVuv(uv)     ((uv) <= IV_MAX ? newSViv((IV)uv) : newSVnv((NV)uv))

__UNDEFINED__  sv_2uv(sv)      ((PL_Sv = (sv)), (UV) (SvNOK(PL_Sv) ? SvNV(PL_Sv) : sv_2nv(PL_Sv)))
__UNDEFINED__  SvUVX(sv)       ((UV)SvIVX(sv))
__UNDEFINED__  SvUVXx(sv)      SvUVX(sv)
__UNDEFINED__  SvUV(sv)        (SvIOK(sv) ? SvUVX(sv) : sv_2uv(sv))
__UNDEFINED__  SvUVx(sv)       ((PL_Sv = (sv)), SvUV(PL_Sv))

/* Hint: sv_uv
 * Always use the SvUVx() macro instead of sv_uv().
 */
__UNDEFINED__  sv_uv(sv)       SvUVx(sv)

#if !defined(SvUOK) && defined(SvIOK_UV)
#  define SvUOK(sv) SvIOK_UV(sv)
#endif

__UNDEFINED__  XST_mUV(i,v)    (ST(i) = sv_2mortal(newSVuv(v))  )
__UNDEFINED__  XSRETURN_UV(v)  STMT_START { XST_mUV(0,v);  XSRETURN(1); } STMT_END

__UNDEFINED__  PUSHu(u)        STMT_START { sv_setuv(TARG, (UV)(u)); PUSHTARG;  } STMT_END
__UNDEFINED__  XPUSHu(u)       STMT_START { sv_setuv(TARG, (UV)(u)); XPUSHTARG; } STMT_END

=xsubs

SV *
sv_setuv(uv)
	UV uv
	CODE:
		RETVAL = newSViv(1);
		sv_setuv(RETVAL, uv);
	OUTPUT:
		RETVAL

SV *
newSVuv(uv)
	UV uv
	CODE:
		RETVAL = newSVuv(uv);
	OUTPUT:
		RETVAL

UV
sv_2uv(sv)
	SV *sv
	CODE:
		RETVAL = sv_2uv(sv);
	OUTPUT:
		RETVAL

UV
SvUVx(sv)
	SV *sv
	CODE:
		sv--;
		RETVAL = SvUVx(++sv);
	OUTPUT:
		RETVAL

void
XSRETURN_UV()
	PPCODE:
		XSRETURN_UV(42);

void
PUSHu()
	PREINIT:
		dTARG;
	PPCODE:
		TARG = sv_newmortal();
		EXTEND(SP, 1);
		PUSHu(42);
		XSRETURN(1);

void
XPUSHu()
	PREINIT:
		dTARG;
	PPCODE:
		TARG = sv_newmortal();
		XPUSHu(43);
		XSRETURN(1);

=tests plan => 10

ok(&Devel::PPPort::sv_setuv(42), 42);
ok(&Devel::PPPort::newSVuv(123), 123);
ok(&Devel::PPPort::sv_2uv("4711"), 4711);
ok(&Devel::PPPort::sv_2uv("1735928559"), 1735928559);
ok(&Devel::PPPort::SvUVx("1735928559"), 1735928559);
ok(&Devel::PPPort::SvUVx(1735928559), 1735928559);
ok(&Devel::PPPort::SvUVx(0xdeadbeef), 0xdeadbeef);
ok(&Devel::PPPort::XSRETURN_UV(), 42);
ok(&Devel::PPPort::PUSHu(), 42);
ok(&Devel::PPPort::XPUSHu(), 43);