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-rw-r--r--botan/src/math/bigint/big_ops3.cpp190
1 files changed, 0 insertions, 190 deletions
diff --git a/botan/src/math/bigint/big_ops3.cpp b/botan/src/math/bigint/big_ops3.cpp
deleted file mode 100644
index ad8b7bb..0000000
--- a/botan/src/math/bigint/big_ops3.cpp
+++ /dev/null
@@ -1,190 +0,0 @@
-/*
-* BigInt Binary Operators
-* (C) 1999-2007 Jack Lloyd
-*
-* Distributed under the terms of the Botan license
-*/
-
-#include <botan/bigint.h>
-#include <botan/divide.h>
-#include <botan/mp_core.h>
-#include <botan/bit_ops.h>
-#include <algorithm>
-
-namespace Botan {
-
-/*
-* Addition Operator
-*/
-BigInt operator+(const BigInt& x, const BigInt& y)
- {
- const u32bit x_sw = x.sig_words(), y_sw = y.sig_words();
-
- BigInt z(x.sign(), std::max(x_sw, y_sw) + 1);
-
- if((x.sign() == y.sign()))
- bigint_add3(z.get_reg(), x.data(), x_sw, y.data(), y_sw);
- else
- {
- s32bit relative_size = bigint_cmp(x.data(), x_sw, y.data(), y_sw);
-
- if(relative_size < 0)
- {
- bigint_sub3(z.get_reg(), y.data(), y_sw, x.data(), x_sw);
- z.set_sign(y.sign());
- }
- else if(relative_size == 0)
- z.set_sign(BigInt::Positive);
- else if(relative_size > 0)
- bigint_sub3(z.get_reg(), x.data(), x_sw, y.data(), y_sw);
- }
-
- return z;
- }
-
-/*
-* Subtraction Operator
-*/
-BigInt operator-(const BigInt& x, const BigInt& y)
- {
- const u32bit x_sw = x.sig_words(), y_sw = y.sig_words();
-
- s32bit relative_size = bigint_cmp(x.data(), x_sw, y.data(), y_sw);
-
- BigInt z(BigInt::Positive, std::max(x_sw, y_sw) + 1);
-
- if(relative_size < 0)
- {
- if(x.sign() == y.sign())
- bigint_sub3(z.get_reg(), y.data(), y_sw, x.data(), x_sw);
- else
- bigint_add3(z.get_reg(), x.data(), x_sw, y.data(), y_sw);
- z.set_sign(y.reverse_sign());
- }
- else if(relative_size == 0)
- {
- if(x.sign() != y.sign())
- bigint_shl2(z.get_reg(), x.data(), x_sw, 0, 1);
- }
- else if(relative_size > 0)
- {
- if(x.sign() == y.sign())
- bigint_sub3(z.get_reg(), x.data(), x_sw, y.data(), y_sw);
- else
- bigint_add3(z.get_reg(), x.data(), x_sw, y.data(), y_sw);
- z.set_sign(x.sign());
- }
- return z;
- }
-
-/*
-* Multiplication Operator
-*/
-BigInt operator*(const BigInt& x, const BigInt& y)
- {
- const u32bit x_sw = x.sig_words(), y_sw = y.sig_words();
-
- BigInt z(BigInt::Positive, x.size() + y.size());
-
- if(x_sw == 1 && y_sw)
- bigint_linmul3(z.get_reg(), y.data(), y_sw, x.word_at(0));
- else if(y_sw == 1 && x_sw)
- bigint_linmul3(z.get_reg(), x.data(), x_sw, y.word_at(0));
- else if(x_sw && y_sw)
- {
- SecureVector<word> workspace(z.size());
- bigint_mul(z.get_reg(), z.size(), workspace,
- x.data(), x.size(), x_sw,
- y.data(), y.size(), y_sw);
- }
-
- if(x_sw && y_sw && x.sign() != y.sign())
- z.flip_sign();
- return z;
- }
-
-/*
-* Division Operator
-*/
-BigInt operator/(const BigInt& x, const BigInt& y)
- {
- BigInt q, r;
- divide(x, y, q, r);
- return q;
- }
-
-/*
-* Modulo Operator
-*/
-BigInt operator%(const BigInt& n, const BigInt& mod)
- {
- if(mod.is_zero())
- throw BigInt::DivideByZero();
- if(mod.is_negative())
- throw Invalid_Argument("BigInt::operator%: modulus must be > 0");
- if(n.is_positive() && mod.is_positive() && n < mod)
- return n;
-
- BigInt q, r;
- divide(n, mod, q, r);
- return r;
- }
-
-/*
-* Modulo Operator
-*/
-word operator%(const BigInt& n, word mod)
- {
- if(mod == 0)
- throw BigInt::DivideByZero();
- if(power_of_2(mod))
- return (n.word_at(0) & (mod - 1));
-
- word remainder = 0;
-
- for(u32bit j = n.sig_words(); j > 0; --j)
- remainder = bigint_modop(remainder, n.word_at(j-1), mod);
-
- if(remainder && n.sign() == BigInt::Negative)
- return mod - remainder;
- return remainder;
- }
-
-/*
-* Left Shift Operator
-*/
-BigInt operator<<(const BigInt& x, u32bit shift)
- {
- if(shift == 0)
- return x;
-
- const u32bit shift_words = shift / MP_WORD_BITS,
- shift_bits = shift % MP_WORD_BITS;
-
- const u32bit x_sw = x.sig_words();
-
- BigInt y(x.sign(), x_sw + shift_words + (shift_bits ? 1 : 0));
- bigint_shl2(y.get_reg(), x.data(), x_sw, shift_words, shift_bits);
- return y;
- }
-
-/*
-* Right Shift Operator
-*/
-BigInt operator>>(const BigInt& x, u32bit shift)
- {
- if(shift == 0)
- return x;
- if(x.bits() <= shift)
- return 0;
-
- const u32bit shift_words = shift / MP_WORD_BITS,
- shift_bits = shift % MP_WORD_BITS,
- x_sw = x.sig_words();
-
- BigInt y(x.sign(), x_sw - shift_words);
- bigint_shr2(y.get_reg(), x.data(), x_sw, shift_words, shift_bits);
- return y;
- }
-
-}