diff options
Diffstat (limited to 'src/math/bigint')
| -rw-r--r-- | src/math/bigint/big_ops2.cpp | 24 | ||||
| -rw-r--r-- | src/math/bigint/big_ops3.cpp | 26 | ||||
| -rw-r--r-- | src/math/bigint/bigint.h | 12 |
3 files changed, 30 insertions, 32 deletions
diff --git a/src/math/bigint/big_ops2.cpp b/src/math/bigint/big_ops2.cpp index ec5197090..f47cbb4e8 100644 --- a/src/math/bigint/big_ops2.cpp +++ b/src/math/bigint/big_ops2.cpp @@ -23,7 +23,7 @@ BigInt& BigInt::operator+=(const BigInt& y) grow_to(reg_size); if(sign() == y.sign()) - bigint_add2(data(), reg_size - 1, y.data(), y_sw); + bigint_add2(mutable_data(), reg_size - 1, y.data(), y_sw); else { s32bit relative_size = bigint_cmp(data(), x_sw, y.data(), y_sw); @@ -41,7 +41,7 @@ BigInt& BigInt::operator+=(const BigInt& y) set_sign(Positive); } else if(relative_size > 0) - bigint_sub2(data(), x_sw, y.data(), y_sw); + bigint_sub2(mutable_data(), x_sw, y.data(), y_sw); } return (*this); @@ -62,9 +62,9 @@ BigInt& BigInt::operator-=(const BigInt& y) if(relative_size < 0) { if(sign() == y.sign()) - bigint_sub2_rev(data(), y.data(), y_sw); + bigint_sub2_rev(mutable_data(), y.data(), y_sw); else - bigint_add2(data(), reg_size - 1, y.data(), y_sw); + bigint_add2(mutable_data(), reg_size - 1, y.data(), y_sw); set_sign(y.reverse_sign()); } @@ -76,14 +76,14 @@ BigInt& BigInt::operator-=(const BigInt& y) set_sign(Positive); } else - bigint_shl1(data(), x_sw, 0, 1); + bigint_shl1(mutable_data(), x_sw, 0, 1); } else if(relative_size > 0) { if(sign() == y.sign()) - bigint_sub2(data(), x_sw, y.data(), y_sw); + bigint_sub2(mutable_data(), x_sw, y.data(), y_sw); else - bigint_add2(data(), reg_size - 1, y.data(), y_sw); + bigint_add2(mutable_data(), reg_size - 1, y.data(), y_sw); } return (*this); @@ -105,12 +105,12 @@ BigInt& BigInt::operator*=(const BigInt& y) else if(x_sw == 1 && y_sw) { grow_to(y_sw + 2); - bigint_linmul3(data(), y.data(), y_sw, word_at(0)); + bigint_linmul3(mutable_data(), y.data(), y_sw, word_at(0)); } else if(y_sw == 1 && x_sw) { grow_to(x_sw + 2); - bigint_linmul2(data(), x_sw, y.word_at(0)); + bigint_linmul2(mutable_data(), x_sw, y.word_at(0)); } else { @@ -119,7 +119,7 @@ BigInt& BigInt::operator*=(const BigInt& y) secure_vector<word> z(data(), data() + x_sw); secure_vector<word> workspace(size()); - bigint_mul(data(), size(), &workspace[0], + bigint_mul(mutable_data(), size(), &workspace[0], &z[0], z.size(), x_sw, y.data(), y.size(), y_sw); } @@ -192,7 +192,7 @@ BigInt& BigInt::operator<<=(size_t shift) words = sig_words(); grow_to(words + shift_words + (shift_bits ? 1 : 0)); - bigint_shl1(data(), words, shift_words, shift_bits); + bigint_shl1(mutable_data(), words, shift_words, shift_bits); } return (*this); @@ -208,7 +208,7 @@ BigInt& BigInt::operator>>=(size_t shift) const size_t shift_words = shift / MP_WORD_BITS, shift_bits = shift % MP_WORD_BITS; - bigint_shr1(data(), sig_words(), shift_words, shift_bits); + bigint_shr1(mutable_data(), sig_words(), shift_words, shift_bits); if(is_zero()) set_sign(Positive); diff --git a/src/math/bigint/big_ops3.cpp b/src/math/bigint/big_ops3.cpp index a33b32bb7..acd139716 100644 --- a/src/math/bigint/big_ops3.cpp +++ b/src/math/bigint/big_ops3.cpp @@ -23,20 +23,20 @@ BigInt operator+(const BigInt& x, const BigInt& y) BigInt z(x.sign(), std::max(x_sw, y_sw) + 1); if((x.sign() == y.sign())) - bigint_add3(z.data(), x.data(), x_sw, y.data(), y_sw); + bigint_add3(z.mutable_data(), 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.data(), y.data(), y_sw, x.data(), x_sw); + bigint_sub3(z.mutable_data(), 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.data(), x.data(), x_sw, y.data(), y_sw); + bigint_sub3(z.mutable_data(), x.data(), x_sw, y.data(), y_sw); } return z; @@ -56,22 +56,22 @@ BigInt operator-(const BigInt& x, const BigInt& y) if(relative_size < 0) { if(x.sign() == y.sign()) - bigint_sub3(z.data(), y.data(), y_sw, x.data(), x_sw); + bigint_sub3(z.mutable_data(), y.data(), y_sw, x.data(), x_sw); else - bigint_add3(z.data(), x.data(), x_sw, y.data(), y_sw); + bigint_add3(z.mutable_data(), 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.data(), x.data(), x_sw, 0, 1); + bigint_shl2(z.mutable_data(), x.data(), x_sw, 0, 1); } else if(relative_size > 0) { if(x.sign() == y.sign()) - bigint_sub3(z.data(), x.data(), x_sw, y.data(), y_sw); + bigint_sub3(z.mutable_data(), x.data(), x_sw, y.data(), y_sw); else - bigint_add3(z.data(), x.data(), x_sw, y.data(), y_sw); + bigint_add3(z.mutable_data(), x.data(), x_sw, y.data(), y_sw); z.set_sign(x.sign()); } return z; @@ -87,13 +87,13 @@ BigInt operator*(const BigInt& x, const BigInt& y) BigInt z(BigInt::Positive, x.size() + y.size()); if(x_sw == 1 && y_sw) - bigint_linmul3(z.data(), y.data(), y_sw, x.word_at(0)); + bigint_linmul3(z.mutable_data(), y.data(), y_sw, x.word_at(0)); else if(y_sw == 1 && x_sw) - bigint_linmul3(z.data(), x.data(), x_sw, y.word_at(0)); + bigint_linmul3(z.mutable_data(), x.data(), x_sw, y.word_at(0)); else if(x_sw && y_sw) { secure_vector<word> workspace(z.size()); - bigint_mul(z.data(), z.size(), &workspace[0], + bigint_mul(z.mutable_data(), z.size(), &workspace[0], x.data(), x.size(), x_sw, y.data(), y.size(), y_sw); } @@ -164,7 +164,7 @@ BigInt operator<<(const BigInt& x, size_t shift) const size_t x_sw = x.sig_words(); BigInt y(x.sign(), x_sw + shift_words + (shift_bits ? 1 : 0)); - bigint_shl2(y.data(), x.data(), x_sw, shift_words, shift_bits); + bigint_shl2(y.mutable_data(), x.data(), x_sw, shift_words, shift_bits); return y; } @@ -183,7 +183,7 @@ BigInt operator>>(const BigInt& x, size_t shift) x_sw = x.sig_words(); BigInt y(x.sign(), x_sw - shift_words); - bigint_shr2(y.data(), x.data(), x_sw, shift_words, shift_bits); + bigint_shr2(y.mutable_data(), x.data(), x_sw, shift_words, shift_bits); return y; } diff --git a/src/math/bigint/bigint.h b/src/math/bigint/bigint.h index baf2bfc71..f026e67f1 100644 --- a/src/math/bigint/bigint.h +++ b/src/math/bigint/bigint.h @@ -311,16 +311,14 @@ class BOTAN_DLL BigInt size_t bits() const; /** - * Return a pointer to the big integer word register - * @result a pointer to the start of the internal register of - * the integer value + * Return a mutable pointer to the register + * @result a pointer to the start of the internal register */ - word* data() { return &m_reg[0]; } + word* mutable_data() { return &m_reg[0]; } /** - * Return a pointer to the big integer word register - * @result a pointer to the start of the internal register of - * the integer value + * Return a const pointer to the register + * @result a pointer to the start of the internal register */ const word* data() const { return &m_reg[0]; } |