2018-03-22 15:51:09 +01:00
|
|
|
MODULE = CryptX PACKAGE = Math::BigInt::LTM
|
|
|
|
|
2018-03-22 15:54:03 +01:00
|
|
|
PROTOTYPES: DISABLE
|
2018-03-22 15:51:09 +01:00
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _new()
|
|
|
|
|
|
|
|
Math::BigInt::LTM
|
|
|
|
_new(Class, SV *x)
|
|
|
|
CODE:
|
|
|
|
Newz(0, RETVAL, 1, mp_int);
|
|
|
|
mp_init(RETVAL);
|
|
|
|
if ((SvUOK(x) || SvIOK(x)) && (sizeof(UV) <= sizeof(unsigned long) || SvUV(x) == (unsigned long)SvUV(x))) {
|
|
|
|
mp_set_int(RETVAL, (unsigned long)SvUV(x));
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
mp_read_radix(RETVAL, SvPV_nolen(x), 10);
|
|
|
|
}
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _from_bin()
|
|
|
|
|
|
|
|
Math::BigInt::LTM
|
|
|
|
_from_bin(Class, SV *x)
|
|
|
|
PREINIT:
|
|
|
|
char *str, *start;
|
|
|
|
CODE:
|
|
|
|
Newz(0, RETVAL, 1, mp_int);
|
|
|
|
mp_init(RETVAL);
|
|
|
|
str = SvPV_nolen(x);
|
|
|
|
start = (strlen(str)>2 && str[0] == '0' && str[1] == 'b') ? str+2 : str;
|
|
|
|
mp_read_radix(RETVAL, start, 2);
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _from_hex()
|
|
|
|
|
|
|
|
Math::BigInt::LTM
|
|
|
|
_from_hex(Class, SV *x)
|
|
|
|
PREINIT:
|
|
|
|
char *str, *start;
|
|
|
|
CODE:
|
|
|
|
Newz(0, RETVAL, 1, mp_int);
|
|
|
|
mp_init(RETVAL);
|
|
|
|
str = SvPV_nolen(x);
|
|
|
|
start = (strlen(str)>2 && str[0] == '0' && str[1] == 'x') ? str+2 : str;
|
|
|
|
mp_read_radix(RETVAL, start, 16);
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _from_oct()
|
|
|
|
|
|
|
|
Math::BigInt::LTM
|
|
|
|
_from_oct(Class, SV *x)
|
|
|
|
CODE:
|
|
|
|
Newz(0, RETVAL, 1, mp_int);
|
|
|
|
mp_init(RETVAL);
|
|
|
|
mp_read_radix(RETVAL, SvPV_nolen(x), 8);
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _set() - set an already existing object to the given scalar value
|
|
|
|
|
|
|
|
void
|
|
|
|
_set(Class, Math::BigInt::LTM n, SV *x)
|
|
|
|
CODE:
|
|
|
|
mp_set_int(n, (unsigned long)SvIV(x));
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _zero()
|
|
|
|
|
|
|
|
Math::BigInt::LTM
|
|
|
|
_zero(Class)
|
|
|
|
CODE:
|
|
|
|
Newz(0, RETVAL, 1, mp_int);
|
|
|
|
mp_init(RETVAL);
|
|
|
|
mp_set_int(RETVAL, 0);
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _one()
|
|
|
|
|
|
|
|
Math::BigInt::LTM
|
|
|
|
_one(Class)
|
|
|
|
CODE:
|
|
|
|
Newz(0, RETVAL, 1, mp_int);
|
|
|
|
mp_init(RETVAL);
|
|
|
|
mp_set_int(RETVAL, 1);
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _two()
|
|
|
|
|
|
|
|
Math::BigInt::LTM
|
|
|
|
_two(Class)
|
|
|
|
CODE:
|
|
|
|
Newz(0, RETVAL, 1, mp_int);
|
|
|
|
mp_init(RETVAL);
|
|
|
|
mp_set_int(RETVAL, 2);
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _ten()
|
|
|
|
|
|
|
|
Math::BigInt::LTM
|
|
|
|
_ten(Class)
|
|
|
|
CODE:
|
|
|
|
Newz(0, RETVAL, 1, mp_int);
|
|
|
|
mp_init(RETVAL);
|
|
|
|
mp_set_int(RETVAL, 10);
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _1ex()
|
|
|
|
|
|
|
|
Math::BigInt::LTM
|
|
|
|
_1ex(Class, int x)
|
|
|
|
CODE:
|
|
|
|
Newz(0, RETVAL, 1, mp_int);
|
|
|
|
mp_init(RETVAL);
|
|
|
|
mp_set_int(RETVAL, 10);
|
|
|
|
mp_expt_d(RETVAL, x, RETVAL);
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# DESTROY() - free memory of a GMP number
|
|
|
|
|
|
|
|
void
|
|
|
|
DESTROY(Math::BigInt::LTM n)
|
|
|
|
PPCODE:
|
|
|
|
if (n) {
|
|
|
|
mp_clear(n);
|
|
|
|
Safefree(n);
|
|
|
|
}
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _str() - return string so that atof() and atoi() can use it
|
|
|
|
|
|
|
|
SV *
|
|
|
|
_str(Class, Math::BigInt::LTM n)
|
|
|
|
PREINIT:
|
|
|
|
int len;
|
|
|
|
char *buf;
|
|
|
|
CODE:
|
|
|
|
if (mp_iszero(n) == MP_YES) {
|
|
|
|
RETVAL = newSVpv("0", 0);
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
len = mp_count_bits(n) / 3 + 3; /* decimal_size ~ (binary_size/3 + 1) +1 for sign +1 for NUL-byte */
|
|
|
|
Newz(0, buf, len, char);
|
|
|
|
mp_toradix_n(n, buf, 10, len);
|
|
|
|
RETVAL = newSVpv(buf, 0);
|
|
|
|
Safefree(buf);
|
|
|
|
}
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _len() - return the length of the number in base 10 (costly)
|
|
|
|
|
|
|
|
int
|
|
|
|
_len(Class, Math::BigInt::LTM n)
|
|
|
|
PREINIT:
|
|
|
|
int len;
|
|
|
|
char *buf;
|
|
|
|
CODE:
|
|
|
|
if (mp_iszero(n) == MP_YES) {
|
|
|
|
RETVAL = 1;
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
len = mp_count_bits(n) / 3 + 3; /* decimal_size ~ (binary_size/3 + 1) +1 for sign +1 for NUL-byte */
|
|
|
|
Newz(0, buf, len, char);
|
|
|
|
mp_toradix_n(n, buf, 10, len);
|
|
|
|
RETVAL = (int)strlen(buf);
|
|
|
|
Safefree(buf);
|
|
|
|
}
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _alen() - return the approx. length of the number in base 10 (fast)
|
|
|
|
# _alen() might underestimate, but never overestimate the true value
|
|
|
|
int
|
|
|
|
_alen(Class, Math::BigInt::LTM n)
|
|
|
|
PREINIT:
|
|
|
|
int bits;
|
|
|
|
CODE:
|
|
|
|
bits = mp_count_bits(n);
|
|
|
|
/* alen = round(bits * log(2) / log(10)) */
|
|
|
|
RETVAL = (bits < 5) ? 1 : (int)(bits * 0.301029995663 + 0.499999999999);
|
|
|
|
/* less accurate approximation, but without floating-point calculations
|
|
|
|
RETVAL = (bits < 5) ? 1 : bits / 4 + bits / 32 + bits / 64 + bits / 256;
|
|
|
|
RETVAL = (bits < 5) ? 1 : bits / 4;
|
|
|
|
*/
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _zeros() - return number of trailing zeros (in decimal form)
|
|
|
|
|
|
|
|
int
|
|
|
|
_zeros(Class, Math::BigInt::LTM n)
|
|
|
|
PREINIT:
|
|
|
|
int len;
|
|
|
|
char *buf;
|
|
|
|
CODE:
|
|
|
|
if (mp_iszero(n) == MP_YES) {
|
|
|
|
RETVAL = 0; /* '0' has no trailing zeros! */
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
len = mp_count_bits(n) / 3 + 3; /* decimal_size ~ (binary_size/3 + 1) +1 for sign +1 for NUL-byte */
|
|
|
|
Newz(0, buf, len, char);
|
|
|
|
mp_toradix_n(n, buf, 10, len);
|
|
|
|
len = (int)strlen(buf);
|
|
|
|
RETVAL = 0;
|
|
|
|
while (len > 0) {
|
|
|
|
if (buf[len-1] != '0') break;
|
|
|
|
RETVAL++;
|
|
|
|
len--;
|
|
|
|
}
|
|
|
|
Safefree(buf);
|
|
|
|
}
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _as_hex() - return ref to hexadecimal string (prefixed with 0x)
|
|
|
|
|
|
|
|
SV *
|
|
|
|
_as_hex(Class, Math::BigInt::LTM n)
|
|
|
|
PREINIT:
|
|
|
|
int i, len;
|
|
|
|
char *buf;
|
|
|
|
CODE:
|
|
|
|
len = mp_unsigned_bin_size(n) * 2 + 3;
|
|
|
|
RETVAL = newSV(len);
|
|
|
|
SvPOK_on(RETVAL);
|
|
|
|
buf = SvPVX(RETVAL); /* get ptr to storage */
|
|
|
|
*buf++ = '0'; *buf++ = 'x'; /* prepend '0x' */
|
|
|
|
mp_tohex(n, buf);
|
|
|
|
for (i=0; i<len && buf[i]>0; i++) buf[i] = toLOWER(buf[i]);
|
|
|
|
SvCUR_set(RETVAL, strlen(buf)+2); /* set real length */
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _as_bin() - return ref to binary string (prefixed with 0b)
|
|
|
|
|
|
|
|
SV *
|
|
|
|
_as_bin(Class, Math::BigInt::LTM n)
|
|
|
|
PREINIT:
|
|
|
|
int len;
|
|
|
|
char *buf;
|
|
|
|
CODE:
|
|
|
|
len = mp_unsigned_bin_size(n) * 8 + 3;
|
|
|
|
RETVAL = newSV(len);
|
|
|
|
SvPOK_on(RETVAL);
|
|
|
|
buf = SvPVX(RETVAL); /* get ptr to storage */
|
|
|
|
*buf++ = '0'; *buf++ = 'b'; /* prepend '0b' */
|
|
|
|
mp_tobinary(n, buf);
|
|
|
|
SvCUR_set(RETVAL, strlen(buf)+2); /* set real length */
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _as_oct() - return ref to octal string (prefixed with 0)
|
|
|
|
|
|
|
|
SV *
|
|
|
|
_as_oct(Class, Math::BigInt::LTM n)
|
|
|
|
PREINIT:
|
|
|
|
int len;
|
|
|
|
char *buf;
|
|
|
|
CODE:
|
|
|
|
len = mp_unsigned_bin_size(n) * 3 + 3;
|
|
|
|
RETVAL = newSV(len);
|
|
|
|
SvPOK_on(RETVAL);
|
|
|
|
buf = SvPVX(RETVAL);
|
|
|
|
*buf++ = '0'; /* prepend '0' */
|
|
|
|
mp_tooctal(n, buf);
|
|
|
|
SvCUR_set(RETVAL, strlen(buf)+1); /* set real length */
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _modpow() - ($n ** $exp) % $mod
|
|
|
|
|
|
|
|
Math::BigInt::LTM
|
|
|
|
_modpow(Class, Math::BigInt::LTM n, Math::BigInt::LTM exp, Math::BigInt::LTM mod)
|
|
|
|
CODE:
|
|
|
|
Newz(0, RETVAL, 1, mp_int);
|
|
|
|
mp_init(RETVAL);
|
|
|
|
if (mp_cmp_d(mod, 1) == MP_EQ) {
|
|
|
|
mp_set_int(RETVAL, 0);
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
mp_exptmod(n, exp, mod, RETVAL);
|
|
|
|
}
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _modinv() - compute the inverse of x % y
|
|
|
|
|
|
|
|
void
|
|
|
|
_modinv(Class, Math::BigInt::LTM x, Math::BigInt::LTM y)
|
|
|
|
PREINIT:
|
|
|
|
int rc;
|
|
|
|
SV* s;
|
|
|
|
mp_int* RETVAL;
|
|
|
|
PPCODE:
|
|
|
|
Newz(0, RETVAL, 1, mp_int);
|
|
|
|
mp_init(RETVAL);
|
|
|
|
rc = mp_invmod(x, y, RETVAL);
|
|
|
|
EXTEND(SP, 2); /* we return two values */
|
|
|
|
if (rc != MP_OKAY) {
|
|
|
|
/* Inverse doesn't exist. Return both values undefined. */
|
|
|
|
PUSHs(&PL_sv_undef);
|
|
|
|
PUSHs(&PL_sv_undef);
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
/* Inverse exists. When the modulus to mp_invert() is positive,
|
|
|
|
* the returned value is also positive. */
|
|
|
|
PUSHs(sv_2mortal(sv_from_mpi(RETVAL)));
|
|
|
|
s = sv_newmortal();
|
|
|
|
sv_setpvn(s, "+", 1);
|
|
|
|
PUSHs(s);
|
|
|
|
}
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _add() - add $y to $x in place
|
|
|
|
|
|
|
|
void
|
|
|
|
_add(Class, Math::BigInt::LTM x, Math::BigInt::LTM y)
|
|
|
|
PPCODE:
|
|
|
|
mp_add(x, y, x);
|
|
|
|
XPUSHs(ST(1)); /* x */
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _inc() - modify x inline by doing x++
|
|
|
|
|
|
|
|
void
|
|
|
|
_inc(Class, Math::BigInt::LTM x)
|
|
|
|
PPCODE:
|
|
|
|
mp_add_d(x, 1, x);
|
|
|
|
XPUSHs(ST(1)); /* x */
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _dec() - modify x inline by doing x--
|
|
|
|
|
|
|
|
void
|
|
|
|
_dec(Class, Math::BigInt::LTM x)
|
|
|
|
PPCODE:
|
|
|
|
mp_sub_d(x, 1, x);
|
|
|
|
XPUSHs(ST(1)); /* x */
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _sub() - $x - $y
|
|
|
|
# $x is always larger than $y! So overflow/underflow can not happen here.
|
|
|
|
|
|
|
|
void
|
|
|
|
_sub(Class, Math::BigInt::LTM x, Math::BigInt::LTM y, ...)
|
|
|
|
PPCODE:
|
|
|
|
if ( items == 4 && SvTRUE(ST(3)) ) {
|
|
|
|
/* y -= x */
|
|
|
|
mp_sub(x, y, y);
|
|
|
|
XPUSHs(ST(2)); /* y */
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
/* x -= y */
|
|
|
|
mp_sub(x, y, x);
|
|
|
|
XPUSHs(ST(1)); /* x */
|
|
|
|
}
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _rsft()
|
|
|
|
|
|
|
|
void
|
|
|
|
_rsft(Class, Math::BigInt::LTM x, Math::BigInt::LTM y, unsigned long base_int)
|
|
|
|
PREINIT:
|
|
|
|
mp_int* BASE;
|
|
|
|
PPCODE:
|
|
|
|
Newz(0, BASE, 1, mp_int);
|
|
|
|
mp_init_set_int(BASE, base_int);
|
|
|
|
mp_expt_d(BASE, mp_get_long(y), BASE);
|
|
|
|
mp_div(x, BASE, x, NULL);
|
|
|
|
mp_clear(BASE);
|
|
|
|
Safefree(BASE);
|
|
|
|
XPUSHs(ST(1)); /* x */
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _lsft()
|
|
|
|
|
|
|
|
void
|
|
|
|
_lsft(Class, Math::BigInt::LTM x, Math::BigInt::LTM y, unsigned long base_int)
|
|
|
|
PREINIT:
|
|
|
|
mp_int* BASE;
|
|
|
|
PPCODE:
|
|
|
|
Newz(0, BASE, 1, mp_int);
|
|
|
|
mp_init_set_int(BASE, base_int);
|
|
|
|
mp_expt_d(BASE, mp_get_long(y), BASE);
|
|
|
|
mp_mul(x, BASE, x);
|
|
|
|
mp_clear(BASE);
|
|
|
|
Safefree(BASE);
|
|
|
|
XPUSHs(ST(1)); /* x */
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _mul()
|
|
|
|
|
|
|
|
void
|
|
|
|
_mul(Class, Math::BigInt::LTM x, Math::BigInt::LTM y)
|
|
|
|
PPCODE:
|
|
|
|
mp_mul(x, y, x);
|
|
|
|
XPUSHs(ST(1)); /* x */
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _div(): x /= y or (x,rem) = x / y
|
|
|
|
|
|
|
|
void
|
|
|
|
_div(Class, Math::BigInt::LTM x, Math::BigInt::LTM y)
|
|
|
|
PREINIT:
|
|
|
|
mp_int * rem;
|
|
|
|
PPCODE:
|
|
|
|
if (GIMME_V == G_ARRAY) {
|
|
|
|
Newz(0, rem, 1, mp_int);
|
|
|
|
mp_init(rem);
|
|
|
|
mp_div(x, y, x, rem);
|
|
|
|
EXTEND(SP, 2);
|
|
|
|
PUSHs(ST(1)); /* x */
|
|
|
|
PUSHs(sv_2mortal(sv_from_mpi(rem)));
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
mp_div(x, y, x, NULL);
|
|
|
|
XPUSHs(ST(1)); /* x */
|
|
|
|
}
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _mod() - x %= y
|
|
|
|
|
|
|
|
void
|
|
|
|
_mod(Class, Math::BigInt::LTM x, Math::BigInt::LTM y)
|
|
|
|
PPCODE:
|
|
|
|
mp_mod(x, y, x);
|
|
|
|
XPUSHs(ST(1)); /* x */
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _acmp() - cmp two numbers
|
|
|
|
|
|
|
|
int
|
|
|
|
_acmp(Class, Math::BigInt::LTM m, Math::BigInt::LTM n)
|
|
|
|
CODE:
|
|
|
|
RETVAL = mp_cmp(m, n);
|
|
|
|
if ( RETVAL < 0) RETVAL = -1;
|
|
|
|
if ( RETVAL > 0) RETVAL = 1;
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _is_zero()
|
|
|
|
|
|
|
|
int
|
|
|
|
_is_zero(Class, Math::BigInt::LTM x)
|
|
|
|
CODE:
|
|
|
|
RETVAL = (mp_iszero(x) == MP_YES) ? 1 : 0;
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _is_one()
|
|
|
|
|
|
|
|
int
|
|
|
|
_is_one(Class, Math::BigInt::LTM x)
|
|
|
|
CODE:
|
|
|
|
RETVAL = (mp_cmp_d(x, 1) == MP_EQ) ? 1 : 0;
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _is_two()
|
|
|
|
|
|
|
|
int
|
|
|
|
_is_two(Class, Math::BigInt::LTM x)
|
|
|
|
CODE:
|
|
|
|
RETVAL = (mp_cmp_d(x, 2) == MP_EQ) ? 1 : 0;
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _is_ten()
|
|
|
|
|
|
|
|
int
|
|
|
|
_is_ten(Class, Math::BigInt::LTM x)
|
|
|
|
CODE:
|
|
|
|
RETVAL = (mp_cmp_d(x, 10) == MP_EQ) ? 1 : 0;
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _pow() - x **= y
|
|
|
|
|
|
|
|
void
|
|
|
|
_pow(Class, Math::BigInt::LTM x, Math::BigInt::LTM y)
|
|
|
|
PPCODE:
|
|
|
|
mp_expt_d(x, mp_get_long(y), x);
|
|
|
|
XPUSHs(ST(1)); /* x */
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _gcd() - gcd(m,n)
|
|
|
|
|
|
|
|
Math::BigInt::LTM
|
|
|
|
_gcd(Class, Math::BigInt::LTM x, Math::BigInt::LTM y)
|
|
|
|
CODE:
|
|
|
|
Newz(0, RETVAL, 1, mp_int);
|
|
|
|
mp_init(RETVAL);
|
|
|
|
mp_gcd(x, y, RETVAL);
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _and() - m &= n
|
|
|
|
|
|
|
|
void
|
|
|
|
_and(Class, Math::BigInt::LTM x, Math::BigInt::LTM y)
|
|
|
|
PPCODE:
|
|
|
|
mp_and(x, y, x);
|
|
|
|
XPUSHs(ST(1)); /* x */
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _xor() - m =^ n
|
|
|
|
|
|
|
|
void
|
|
|
|
_xor(Class, Math::BigInt::LTM x, Math::BigInt::LTM y)
|
|
|
|
PPCODE:
|
|
|
|
mp_xor(x, y, x);
|
|
|
|
XPUSHs(ST(1)); /* x */
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _or() - m =| n
|
|
|
|
|
|
|
|
void
|
|
|
|
_or(Class, Math::BigInt::LTM x, Math::BigInt::LTM y)
|
|
|
|
PPCODE:
|
|
|
|
mp_or(x, y, x);
|
|
|
|
XPUSHs(ST(1)); /* x */
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _copy()
|
|
|
|
|
|
|
|
Math::BigInt::LTM
|
|
|
|
_copy(Class, Math::BigInt::LTM m)
|
|
|
|
CODE:
|
|
|
|
Newz(0, RETVAL, 1, mp_int);
|
|
|
|
mp_init(RETVAL);
|
|
|
|
mp_copy(m, RETVAL);
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _is_odd() - test for number being odd
|
|
|
|
|
|
|
|
int
|
|
|
|
_is_odd(Class, Math::BigInt::LTM n)
|
|
|
|
CODE:
|
|
|
|
RETVAL = (mp_isodd(n) == MP_YES) ? 1 : 0;
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _is_even() - test for number being even
|
|
|
|
|
|
|
|
int
|
|
|
|
_is_even(Class, Math::BigInt::LTM n)
|
|
|
|
CODE:
|
|
|
|
RETVAL = (mp_iseven(n) == MP_YES || mp_iszero(n) == MP_YES) ? 1 : 0;
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _sqrt() - square root
|
|
|
|
|
|
|
|
void
|
|
|
|
_sqrt(Class, Math::BigInt::LTM x)
|
|
|
|
PPCODE:
|
|
|
|
mp_sqrt(x, x);
|
|
|
|
XPUSHs(ST(1)); /* x */
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _root() - integer roots
|
|
|
|
|
|
|
|
void
|
|
|
|
_root(Class, Math::BigInt::LTM x, Math::BigInt::LTM y)
|
|
|
|
PPCODE:
|
|
|
|
mp_n_root(x, mp_get_long(y), x);
|
|
|
|
XPUSHs(ST(1)); /* x */
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# _lcm() - least common multiple
|
|
|
|
void
|
|
|
|
_lcm(Class, Math::BigInt::LTM x, Math::BigInt::LTM y)
|
|
|
|
PPCODE:
|
|
|
|
mp_lcm(x, y, x) ;
|
|
|
|
XPUSHs(ST(1)); /* x */
|
|
|
|
|
|
|
|
##############################################################################
|
|
|
|
# Storable hooks
|
|
|
|
|
|
|
|
void
|
|
|
|
STORABLE_thaw(blank_obj, cloning, serialized, ...)
|
|
|
|
SV *blank_obj
|
|
|
|
SV *cloning = NO_INIT
|
|
|
|
SV *serialized
|
|
|
|
PREINIT:
|
|
|
|
SV *target;
|
|
|
|
mp_int *mpi;
|
|
|
|
PPCODE:
|
|
|
|
PERL_UNUSED_VAR(cloning);
|
|
|
|
if (SvROK(blank_obj) && sv_isa(blank_obj, "Math::BigInt::LTM")) {
|
|
|
|
Newz(0, mpi, 1, mp_int);
|
|
|
|
mp_init(mpi);
|
|
|
|
mp_read_radix(mpi, SvPV_nolen(serialized), 10);
|
|
|
|
target = SvRV(blank_obj);
|
|
|
|
SvIV_set(target, PTR2IV(mpi));
|
|
|
|
SvIOK_on(target);
|
|
|
|
PUSHs(target);
|
|
|
|
XSRETURN(1);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
croak("Bad object for Math::BigInt::LTM::STORABLE_thaw call");
|
|
|
|
|
|
|
|
SV *
|
|
|
|
STORABLE_freeze(self, cloning = NULL)
|
|
|
|
Math::BigInt::LTM self
|
|
|
|
SV *cloning = NO_INIT
|
|
|
|
PREINIT:
|
|
|
|
unsigned long len;
|
|
|
|
char *buf;
|
|
|
|
CODE:
|
|
|
|
PERL_UNUSED_VAR(cloning);
|
|
|
|
if (mp_iszero(self) == MP_YES) {
|
|
|
|
RETVAL = newSVpv("0", 0);
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
len = mp_count_bits(self) / 3 + 3; /* decimal_size ~ (binary_size/3 + 1) +1 for sign +1 for NUL-byte */
|
|
|
|
Newz(0, buf, len, char);
|
|
|
|
mp_toradix_n(self, buf, 10, len);
|
|
|
|
RETVAL = newSVpv(buf, 0);
|
|
|
|
Safefree(buf);
|
|
|
|
}
|
|
|
|
OUTPUT:
|
|
|
|
RETVAL
|