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libsnark: convert long long and unsigned long to C++11 fixed-width types

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Co-authored-by: Daira Hopwood <daira@jacaranda.org>
This commit is contained in:
David Mercer
2017-01-11 19:47:49 -07:00
committed by Jack Grigg
parent 7d65dcf4d9
commit 32d3a3352e
38 changed files with 154 additions and 155 deletions
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4
src/snark/libsnark/algebra/fields/bigint.hpp
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@@ -33,7 +33,7 @@ public:
mp_limb_t data[n] = {0};
bigint() = default;
bigint(const unsigned long x); /// Initialize from a small integer
bigint(const uint64_t x); /// Initalize from a small integer
bigint(const char* s); /// Initialize from a string containing an integer in decimal notation
bigint(const mpz_t r); /// Initialize from MPZ element
@@ -46,7 +46,7 @@ public:
size_t max_bits() const { return n * GMP_NUMB_BITS; }
size_t num_bits() const;
unsigned long as_ulong() const; /* return the last limb of the integer */
uint64_t as_uint64() const; /* return the last limb of the integer */
void to_mpz(mpz_t r) const;
bool test_bit(const std::size_t bitno) const;

6
src/snark/libsnark/algebra/fields/bigint.tcc
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@@ -17,9 +17,9 @@
namespace libsnark {
template<mp_size_t n>
bigint<n>::bigint(const unsigned long x) /// Initialize from a small integer
bigint<n>::bigint(const uint64_t x) /// Initialize from a small integer
{
static_assert(ULONG_MAX <= GMP_NUMB_MAX, "unsigned long does not fit in a GMP limb");
static_assert(UINT64_MAX <= GMP_NUMB_MAX, "uint64_t does not fit in a GMP limb");
this->data[0] = x;
}
@@ -131,7 +131,7 @@ size_t bigint<n>::num_bits() const
}
template<mp_size_t n>
unsigned long bigint<n>::as_ulong() const
uint64_t bigint<n>::as_uint64() const
{
return this->data[0];
}

32
src/snark/libsnark/algebra/fields/fp.hpp
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@@ -44,11 +44,11 @@ public:
static const mp_size_t num_limbs = n;
static const constexpr bigint<n>& mod = modulus;
#ifdef PROFILE_OP_COUNTS
static long long add_cnt;
static long long sub_cnt;
static long long mul_cnt;
static long long sqr_cnt;
static long long inv_cnt;
static int64_t add_cnt;
static int64_t sub_cnt;
static int64_t mul_cnt;
static int64_t sqr_cnt;
static int64_t inv_cnt;
#endif
static size_t num_bits;
static bigint<n> euler; // (modulus-1)/2
@@ -69,7 +69,7 @@ public:
Fp_model(const bigint<n> &b);
Fp_model(const long x, const bool is_unsigned=false);
void set_ulong(const unsigned long x);
void set_uint64(const uint64_t x);
void mul_reduce(const bigint<n> &other);
@@ -80,9 +80,9 @@ public:
would return bigint(2) */
bigint<n> as_bigint() const;
/* Return the last limb of the standard representation of the
field element. E.g. on 64-bit architectures Fp(123).as_ulong()
and Fp(2^64+123).as_ulong() would both return 123. */
unsigned long as_ulong() const;
field element. E.g. on 64-bit architectures Fp(123).as_uint64()
and Fp(2^64+123).as_uint64() would both return 123. */
uint64_t as_uint64() const;
bool operator==(const Fp_model& other) const;
bool operator!=(const Fp_model& other) const;
@@ -93,7 +93,7 @@ public:
Fp_model& operator+=(const Fp_model& other);
Fp_model& operator-=(const Fp_model& other);
Fp_model& operator*=(const Fp_model& other);
Fp_model& operator^=(const unsigned long pow);
Fp_model& operator^=(const uint64_t pow);
template<mp_size_t m>
Fp_model& operator^=(const bigint<m> &pow);
@@ -107,7 +107,7 @@ public:
Fp_model inverse() const;
Fp_model sqrt() const; // HAS TO BE A SQUARE (else does not terminate)
Fp_model operator^(const unsigned long pow) const;
Fp_model operator^(const uint64_t pow) const;
template<mp_size_t m>
Fp_model operator^(const bigint<m> &pow) const;
@@ -125,19 +125,19 @@ public:
#ifdef PROFILE_OP_COUNTS
template<mp_size_t n, const bigint<n>& modulus>
long long Fp_model<n, modulus>::add_cnt = 0;
int64_t Fp_model<n, modulus>::add_cnt = 0;
template<mp_size_t n, const bigint<n>& modulus>
long long Fp_model<n, modulus>::sub_cnt = 0;
int64_t Fp_model<n, modulus>::sub_cnt = 0;
template<mp_size_t n, const bigint<n>& modulus>
long long Fp_model<n, modulus>::mul_cnt = 0;
int64_t Fp_model<n, modulus>::mul_cnt = 0;
template<mp_size_t n, const bigint<n>& modulus>
long long Fp_model<n, modulus>::sqr_cnt = 0;
int64_t Fp_model<n, modulus>::sqr_cnt = 0;
template<mp_size_t n, const bigint<n>& modulus>
long long Fp_model<n, modulus>::inv_cnt = 0;
int64_t Fp_model<n, modulus>::inv_cnt = 0;
#endif
template<mp_size_t n, const bigint<n>& modulus>

12
src/snark/libsnark/algebra/fields/fp.tcc
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@@ -210,7 +210,7 @@ Fp_model<n,modulus>::Fp_model(const long x, const bool is_unsigned)
}
template<mp_size_t n, const bigint<n>& modulus>
void Fp_model<n,modulus>::set_ulong(const unsigned long x)
void Fp_model<n,modulus>::set_uint64(const uint64_t x)
{
this->mont_repr.clear();
this->mont_repr.data[0] = x;
@@ -237,9 +237,9 @@ bigint<n> Fp_model<n,modulus>::as_bigint() const
}
template<mp_size_t n, const bigint<n>& modulus>
unsigned long Fp_model<n,modulus>::as_ulong() const
uint64_t Fp_model<n,modulus>::as_uint64() const
{
return this->as_bigint().as_ulong();
return this->as_bigint().as_uint64();
}
template<mp_size_t n, const bigint<n>& modulus>
@@ -502,7 +502,7 @@ Fp_model<n,modulus>& Fp_model<n,modulus>::operator*=(const Fp_model<n,modulus>&
}
template<mp_size_t n, const bigint<n>& modulus>
Fp_model<n,modulus>& Fp_model<n,modulus>::operator^=(const unsigned long pow)
Fp_model<n,modulus>& Fp_model<n,modulus>::operator^=(const uint64_t pow)
{
(*this) = power<Fp_model<n, modulus> >(*this, pow);
return (*this);
@@ -538,7 +538,7 @@ Fp_model<n,modulus> Fp_model<n,modulus>::operator*(const Fp_model<n,modulus>& ot
}
template<mp_size_t n, const bigint<n>& modulus>
Fp_model<n,modulus> Fp_model<n,modulus>::operator^(const unsigned long pow) const
Fp_model<n,modulus> Fp_model<n,modulus>::operator^(const uint64_t pow) const
{
Fp_model<n, modulus> r(*this);
return (r ^= pow);
@@ -690,7 +690,7 @@ Fp_model<n, modulus> Fp_model<n,modulus>::random_element() /// returns random el
const std::size_t part = bitno/GMP_NUMB_BITS;
const std::size_t bit = bitno - (GMP_NUMB_BITS*part);
r.mont_repr.data[part] &= ~(1ul<<bit);
r.mont_repr.data[part] &= ~(UINT64_C(1)<<bit);
bitno--;
}

2
src/snark/libsnark/algebra/fields/fp12_2over3over2.hpp
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@@ -66,7 +66,7 @@ public:
Fp12_2over3over2_model squared_karatsuba() const;
Fp12_2over3over2_model squared_complex() const;
Fp12_2over3over2_model inverse() const;
Fp12_2over3over2_model Frobenius_map(unsigned long power) const;
Fp12_2over3over2_model Frobenius_map(uint64_t power) const;
Fp12_2over3over2_model unitary_inverse() const;
Fp12_2over3over2_model cyclotomic_squared() const;

4
src/snark/libsnark/algebra/fields/fp12_2over3over2.tcc
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@@ -156,7 +156,7 @@ Fp12_2over3over2_model<n,modulus> Fp12_2over3over2_model<n,modulus>::inverse() c
}
template<mp_size_t n, const bigint<n>& modulus>
Fp12_2over3over2_model<n,modulus> Fp12_2over3over2_model<n,modulus>::Frobenius_map(unsigned long power) const
Fp12_2over3over2_model<n,modulus> Fp12_2over3over2_model<n,modulus>::Frobenius_map(uint64_t power) const
{
return Fp12_2over3over2_model<n,modulus>(c0.Frobenius_map(power),
Frobenius_coeffs_c1[power % 12] * c1.Frobenius_map(power));
@@ -348,7 +348,7 @@ Fp12_2over3over2_model<n, modulus> Fp12_2over3over2_model<n,modulus>::cyclotomic
res = res.cyclotomic_squared();
}
if (exponent.data[i] & (1ul<<j))
if (exponent.data[i] & (UINT64_C(1)<<j))
{
found_one = true;
res = res * (*this);

2
src/snark/libsnark/algebra/fields/fp2.hpp
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@@ -66,7 +66,7 @@ public:
Fp2_model operator-() const;
Fp2_model squared() const; // default is squared_complex
Fp2_model inverse() const;
Fp2_model Frobenius_map(unsigned long power) const;
Fp2_model Frobenius_map(uint64_t power) const;
Fp2_model sqrt() const; // HAS TO BE A SQUARE (else does not terminate)
Fp2_model squared_karatsuba() const;
Fp2_model squared_complex() const;

2
src/snark/libsnark/algebra/fields/fp2.tcc
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@@ -136,7 +136,7 @@ Fp2_model<n,modulus> Fp2_model<n,modulus>::inverse() const
}
template<mp_size_t n, const bigint<n>& modulus>
Fp2_model<n,modulus> Fp2_model<n,modulus>::Frobenius_map(unsigned long power) const
Fp2_model<n,modulus> Fp2_model<n,modulus>::Frobenius_map(uint64_t power) const
{
return Fp2_model<n,modulus>(c0,
Frobenius_coeffs_c1[power % 2] * c1);

2
src/snark/libsnark/algebra/fields/fp6_3over2.hpp
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@@ -63,7 +63,7 @@ public:
Fp6_3over2_model operator-() const;
Fp6_3over2_model squared() const;
Fp6_3over2_model inverse() const;
Fp6_3over2_model Frobenius_map(unsigned long power) const;
Fp6_3over2_model Frobenius_map(uint64_t power) const;
static my_Fp2 mul_by_non_residue(const my_Fp2 &elt);

2
src/snark/libsnark/algebra/fields/fp6_3over2.tcc
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@@ -149,7 +149,7 @@ Fp6_3over2_model<n,modulus> Fp6_3over2_model<n,modulus>::inverse() const
}
template<mp_size_t n, const bigint<n>& modulus>
Fp6_3over2_model<n,modulus> Fp6_3over2_model<n,modulus>::Frobenius_map(unsigned long power) const
Fp6_3over2_model<n,modulus> Fp6_3over2_model<n,modulus>::Frobenius_map(uint64_t power) const
{
return Fp6_3over2_model<n,modulus>(c0.Frobenius_map(power),
Frobenius_coeffs_c1[power % 6] * c1.Frobenius_map(power),

13
src/snark/libsnark/algebra/fields/tests/test_bigint.cpp
View File

@@ -13,7 +13,6 @@ using namespace libsnark;
TEST(algebra, bigint)
{
static_assert(ULONG_MAX == 0xFFFFFFFFFFFFFFFFul, "unsigned long not 64-bit");
static_assert(GMP_NUMB_BITS == 64, "GMP limb not 64-bit");
const char *b1_decimal = "76749407";
@@ -26,11 +25,11 @@ TEST(algebra, bigint)
bigint<1> b1 = bigint<1>(b1_decimal);
bigint<2> b2 = bigint<2>(b2_decimal);
EXPECT_EQ(b0.as_ulong(), 0ul);
EXPECT_EQ(b0.as_uint64(), 0ul);
EXPECT_TRUE(b0.is_zero());
EXPECT_EQ(b1.as_ulong(), 76749407ul);
EXPECT_EQ(b1.as_uint64(), 76749407ul);
EXPECT_FALSE(b1.is_zero());
EXPECT_EQ(b2.as_ulong(), 15747124762497195938ul);
EXPECT_EQ(b2.as_uint64(), 15747124762497195938ul);
EXPECT_FALSE(b2.is_zero());
EXPECT_NE(b0, b1);
EXPECT_FALSE(b0 == b1);
@@ -61,7 +60,7 @@ TEST(algebra, bigint)
bigint<2> remainder;
bigint<3>::div_qr(quotient, remainder, b3, b2);
EXPECT_LT(quotient.num_bits(), GMP_NUMB_BITS);
EXPECT_EQ(quotient.as_ulong(), b1.as_ulong());
EXPECT_EQ(quotient.as_uint64(), b1.as_uint64());
bigint<1> b1inc = bigint<1>("76749408");
bigint<1> b1a = quotient.shorten(b1inc, "test");
EXPECT_EQ(b1a, b1);
@@ -79,9 +78,9 @@ TEST(algebra, bigint)
bigint<3>::div_qr(quotient, remainder, b3, b2);
EXPECT_LT(quotient.num_bits(), GMP_NUMB_BITS);
EXPECT_EQ(quotient.as_ulong(), b1.as_ulong());
EXPECT_EQ(quotient.as_uint64(), b1.as_uint64());
EXPECT_LT(remainder.num_bits(), GMP_NUMB_BITS);
EXPECT_EQ(remainder.as_ulong(), 42);
EXPECT_EQ(remainder.as_uint64(), 42);
b3a.clear();
EXPECT_TRUE(b3a.is_zero());