File Coverage

lib/Random/Simple.c

Criterion	Covered	Total	%
statement	64	91	70.3
branch	21	44	47.7
condition			n/a
subroutine			n/a
pod			n/a
total	85	135	62.9

/*
 * This file was generated automatically by ExtUtils::ParseXS version 3.57 from the
 * contents of Simple.xs. Do not edit this file, edit Simple.xs instead.
 *
 *    ANY CHANGES MADE HERE WILL BE LOST!
 *
 */

#line 1 "lib/Random/Simple.xs"
#define PERL_NO_GET_CONTEXT  // we'll define thread context if necessary (faster)
#include "EXTERN.h"          // globals/constant import locations
#include "perl.h"            // Perl symbols, structures and constants definition
#include "XSUB.h"            // xsubpp functions and macros
#include           // rand()
#include           // uint64_t
#include "rand-common.h"

#include "pcg.h"

// Alernate PRNGs available
//#include "xorshiro.h"
//#include "xoroshiro128starstar.h"
//#include "splitmix64.h"
//
// Other PRNGs just need three functions _seed(S1,S2), _rand32(),
// and _rand64()

///////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////

#line 32 "lib/Random/Simple.c"
#ifndef PERL_UNUSED_VAR
#  define PERL_UNUSED_VAR(var) if (0) var = var
#endif

#ifndef dVAR
#  define dVAR		dNOOP
#endif


/* This stuff is not part of the API! You have been warned. */
#ifndef PERL_VERSION_DECIMAL
#  define PERL_VERSION_DECIMAL(r,v,s) (r*1000000 + v*1000 + s)
#endif
#ifndef PERL_DECIMAL_VERSION
#  define PERL_DECIMAL_VERSION \
	  PERL_VERSION_DECIMAL(PERL_REVISION,PERL_VERSION,PERL_SUBVERSION)
#endif
#ifndef PERL_VERSION_GE
#  define PERL_VERSION_GE(r,v,s) \
	  (PERL_DECIMAL_VERSION >= PERL_VERSION_DECIMAL(r,v,s))
#endif
#ifndef PERL_VERSION_LE
#  define PERL_VERSION_LE(r,v,s) \
	  (PERL_DECIMAL_VERSION <= PERL_VERSION_DECIMAL(r,v,s))
#endif

/* XS_INTERNAL is the explicit static-linkage variant of the default
 * XS macro.
 *
 * XS_EXTERNAL is the same as XS_INTERNAL except it does not include
 * "STATIC", ie. it exports XSUB symbols. You probably don't want that
 * for anything but the BOOT XSUB.
 *
 * See XSUB.h in core!
 */


/* TODO: This might be compatible further back than 5.10.0. */
#if PERL_VERSION_GE(5, 10, 0) && PERL_VERSION_LE(5, 15, 1)
#  undef XS_EXTERNAL
#  undef XS_INTERNAL
#  if defined(__CYGWIN__) && defined(USE_DYNAMIC_LOADING)
#    define XS_EXTERNAL(name) __declspec(dllexport) XSPROTO(name)
#    define XS_INTERNAL(name) STATIC XSPROTO(name)
#  endif
#  if defined(__SYMBIAN32__)
#    define XS_EXTERNAL(name) EXPORT_C XSPROTO(name)
#    define XS_INTERNAL(name) EXPORT_C STATIC XSPROTO(name)
#  endif
#  ifndef XS_EXTERNAL
#    if defined(HASATTRIBUTE_UNUSED) && !defined(__cplusplus)
#      define XS_EXTERNAL(name) void name(pTHX_ CV* cv __attribute__unused__)
#      define XS_INTERNAL(name) STATIC void name(pTHX_ CV* cv __attribute__unused__)
#    else
#      ifdef __cplusplus
#        define XS_EXTERNAL(name) extern "C" XSPROTO(name)
#        define XS_INTERNAL(name) static XSPROTO(name)
#      else
#        define XS_EXTERNAL(name) XSPROTO(name)
#        define XS_INTERNAL(name) STATIC XSPROTO(name)
#      endif
#    endif
#  endif
#endif

/* perl >= 5.10.0 && perl <= 5.15.1 */


/* The XS_EXTERNAL macro is used for functions that must not be static
 * like the boot XSUB of a module. If perl didn't have an XS_EXTERNAL
 * macro defined, the best we can do is assume XS is the same.
 * Dito for XS_INTERNAL.
 */
#ifndef XS_EXTERNAL
#  define XS_EXTERNAL(name) XS(name)
#endif
#ifndef XS_INTERNAL
#  define XS_INTERNAL(name) XS(name)
#endif

/* Now, finally, after all this mess, we want an ExtUtils::ParseXS
 * internal macro that we're free to redefine for varying linkage due
 * to the EXPORT_XSUB_SYMBOLS XS keyword. This is internal, use
 * XS_EXTERNAL(name) or XS_INTERNAL(name) in your code if you need to!
 */

#undef XS_EUPXS
#if defined(PERL_EUPXS_ALWAYS_EXPORT)
#  define XS_EUPXS(name) XS_EXTERNAL(name)
#else
   /* default to internal */
#  define XS_EUPXS(name) XS_INTERNAL(name)
#endif

#ifndef PERL_ARGS_ASSERT_CROAK_XS_USAGE
#define PERL_ARGS_ASSERT_CROAK_XS_USAGE assert(cv); assert(params)

/* prototype to pass -Wmissing-prototypes */
STATIC void
S_croak_xs_usage(const CV *const cv, const char *const params);

STATIC void
S_croak_xs_usage(const CV *const cv, const char *const params)
{
    const GV *const gv = CvGV(cv);

    PERL_ARGS_ASSERT_CROAK_XS_USAGE;

    if (gv) {
        const char *const gvname = GvNAME(gv);
        const HV *const stash = GvSTASH(gv);
        const char *const hvname = stash ? HvNAME(stash) : NULL;

        if (hvname)
	    Perl_croak_nocontext("Usage: %s::%s(%s)", hvname, gvname, params);
        else
	    Perl_croak_nocontext("Usage: %s(%s)", gvname, params);
    } else {
        /* Pants. I don't think that it should be possible to get here. */
	Perl_croak_nocontext("Usage: CODE(0x%" UVxf ")(%s)", PTR2UV(cv), params);
    }
}
#undef  PERL_ARGS_ASSERT_CROAK_XS_USAGE

#define croak_xs_usage        S_croak_xs_usage

#endif

/* NOTE: the prototype of newXSproto() is different in versions of perls,
 * so we define a portable version of newXSproto()
 */
#ifdef newXS_flags
#define newXSproto_portable(name, c_impl, file, proto) newXS_flags(name, c_impl, file, proto, 0)
#else
#define newXSproto_portable(name, c_impl, file, proto) (PL_Sv=(SV*)newXS(name, c_impl, file), sv_setpv(PL_Sv, proto), (CV*)PL_Sv)
#endif /* !defined(newXS_flags) */

#if PERL_VERSION_LE(5, 21, 5)
#  define newXS_deffile(a,b) Perl_newXS(aTHX_ a,b,file)
#else
#  define newXS_deffile(a,b) Perl_newXS_deffile(aTHX_ a,b)
#endif

/* simple backcompat versions of the TARGx() macros with no optimisation */
#ifndef TARGi
#  define TARGi(iv, do_taint) sv_setiv_mg(TARG, iv)
#  define TARGu(uv, do_taint) sv_setuv_mg(TARG, uv)
#  define TARGn(nv, do_taint) sv_setnv_mg(TARG, nv)
#endif

#line 183 "lib/Random/Simple.c"

XS_EUPXS(XS_Random__Simple__rand32); /* prototype to pass -Wmissing-prototypes */
XS_EUPXS(XS_Random__Simple__rand32)
{
    dVAR; dXSARGS;
    if (items != 0)
       croak_xs_usage(cv,  "");
    {
	U32	RETVAL;
	dXSTARG;

	RETVAL = _rand32();
	TARGu((UV)RETVAL, 1);
	ST(0) = TARG;
    }
    XSRETURN(1);
}


XS_EUPXS(XS_Random__Simple__rand64); /* prototype to pass -Wmissing-prototypes */
XS_EUPXS(XS_Random__Simple__rand64)
{
    dVAR; dXSARGS;
    if (items != 0)
       croak_xs_usage(cv,  "");
    {
	UV	RETVAL;
	dXSTARG;

	RETVAL = _rand64();
	TARGu((UV)RETVAL, 1);
	ST(0) = TARG;
    }
    XSRETURN(1);
}


XS_EUPXS(XS_Random__Simple__hash_mur3); /* prototype to pass -Wmissing-prototypes */
XS_EUPXS(XS_Random__Simple__hash_mur3)
{
    dVAR; dXSARGS;
    if (items != 1)
       croak_xs_usage(cv,  "seed1");
    {
	UV	RETVAL;
	dXSTARG;
	UV	seed1 = (UV)SvUV(ST(0))
;

	RETVAL = _hash_mur3(seed1);
	TARGu((UV)RETVAL, 1);
	ST(0) = TARG;
    }
    XSRETURN(1);
}


XS_EUPXS(XS_Random__Simple__seed); /* prototype to pass -Wmissing-prototypes */
XS_EUPXS(XS_Random__Simple__seed)
{
    dVAR; dXSARGS;
    if (items != 2)
       croak_xs_usage(cv,  "seed1, seed2");
    {
	UV	seed1 = (UV)SvUV(ST(0))
;
	UV	seed2 = (UV)SvUV(ST(1))
;

	_seed(seed1, seed2);
    }
    XSRETURN_EMPTY;
}


XS_EUPXS(XS_Random__Simple__bounded_rand32_lemire); /* prototype to pass -Wmissing-prototypes */
XS_EUPXS(XS_Random__Simple__bounded_rand32_lemire)
{
    dVAR; dXSARGS;
    if (items != 1)
       croak_xs_usage(cv,  "range");
    {
	U32	RETVAL;
	dXSTARG;
	UV	range = (UV)SvUV(ST(0))
;

	RETVAL = _bounded_rand32_lemire(range);
	TARGu((UV)RETVAL, 1);
	ST(0) = TARG;
    }
    XSRETURN(1);
}


XS_EUPXS(XS_Random__Simple__bounded_rand64_rejection); /* prototype to pass -Wmissing-prototypes */
XS_EUPXS(XS_Random__Simple__bounded_rand64_rejection)
{
    dVAR; dXSARGS;
    if (items != 1)
       croak_xs_usage(cv,  "range");
    {
	UV	RETVAL;
	dXSTARG;
	UV	range = (UV)SvUV(ST(0))
;

	RETVAL = _bounded_rand64_rejection(range);
	TARGu((UV)RETVAL, 1);
	ST(0) = TARG;
    }
    XSRETURN(1);
}


XS_EUPXS(XS_Random__Simple__uint64_to_double); /* prototype to pass -Wmissing-prototypes */
XS_EUPXS(XS_Random__Simple__uint64_to_double)
{
    dVAR; dXSARGS;
    if (items != 2)
       croak_xs_usage(cv,  "num, inclusive");
    {
	double	RETVAL;
	dXSTARG;
	UV	num = (UV)SvUV(ST(0))
;
	U8	inclusive = (U8)SvUV(ST(1))
;

	RETVAL = _uint64_to_double(num, inclusive);
	TARGn((double)RETVAL, 1);
	ST(0) = TARG;
    }
    XSRETURN(1);
}


XS_EUPXS(XS_Random__Simple__uint32_to_float); /* prototype to pass -Wmissing-prototypes */
XS_EUPXS(XS_Random__Simple__uint32_to_float)
{
    dVAR; dXSARGS;
    if (items != 2)
       croak_xs_usage(cv,  "num, inclusive");
    {
	float	RETVAL;
	dXSTARG;
	U32	num = (unsigned long)SvUV(ST(0))
;
	U8	inclusive = (U8)SvUV(ST(1))
;

	RETVAL = _uint32_to_float(num, inclusive);
	TARGn((double)RETVAL, 1);
	ST(0) = TARG;
    }
    XSRETURN(1);
}

#ifdef __cplusplus
extern "C" {
#endif
XS_EXTERNAL(boot_Random__Simple); /* prototype to pass -Wmissing-prototypes */
XS_EXTERNAL(boot_Random__Simple)
{
#if PERL_VERSION_LE(5, 21, 5)
    dVAR; dXSARGS;
#else
    dVAR; dXSBOOTARGSXSAPIVERCHK;
#endif
#if PERL_VERSION_LE(5, 8, 999) /* PERL_VERSION_LT is 5.33+ */
    char* file = __FILE__;
#else
    const char* file = __FILE__;
#endif

    PERL_UNUSED_VAR(file);

    PERL_UNUSED_VAR(cv); /* -W */
    PERL_UNUSED_VAR(items); /* -W */
#if PERL_VERSION_LE(5, 21, 5)
    XS_VERSION_BOOTCHECK;
#  ifdef XS_APIVERSION_BOOTCHECK
    XS_APIVERSION_BOOTCHECK;
#  endif
#endif

        (void)newXSproto_portable("Random::Simple::_rand32", XS_Random__Simple__rand32, file, "");
        (void)newXSproto_portable("Random::Simple::_rand64", XS_Random__Simple__rand64, file, "");
        (void)newXSproto_portable("Random::Simple::_hash_mur3", XS_Random__Simple__hash_mur3, file, "$");
        (void)newXSproto_portable("Random::Simple::_seed", XS_Random__Simple__seed, file, "$$");
        (void)newXSproto_portable("Random::Simple::_bounded_rand32_lemire", XS_Random__Simple__bounded_rand32_lemire, file, "$");
        (void)newXSproto_portable("Random::Simple::_bounded_rand64_rejection", XS_Random__Simple__bounded_rand64_rejection, file, "$");
        (void)newXSproto_portable("Random::Simple::_uint64_to_double", XS_Random__Simple__uint64_to_double, file, "$$");
        (void)newXSproto_portable("Random::Simple::_uint32_to_float", XS_Random__Simple__uint32_to_float, file, "$$");
#if PERL_VERSION_LE(5, 21, 5)
#  if PERL_VERSION_GE(5, 9, 0)
    if (PL_unitcheckav)
        call_list(PL_scopestack_ix, PL_unitcheckav);
#  endif
    XSRETURN_YES;
#else
    Perl_xs_boot_epilog(aTHX_ ax);
#endif
}

#ifdef __cplusplus
}
#endif