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Some const correctness in the uint256 functions

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This commit is contained in:
Alexandre Paillier
2022-06-06 18:35:55 +02:00
parent f458fcd6ac
commit 50225d72d0
2 changed files with 115 additions and 68 deletions
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85
src_common/uint256.h
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@@ -39,38 +39,57 @@ typedef struct uint256_t {
#define UPPER(x) x.elements[0]
#define LOWER(x) x.elements[1]
void readu128BE(uint8_t *buffer, uint128_t *target);
void readu256BE(uint8_t *buffer, uint256_t *target);
void write_u64_be(uint8_t *buffer, uint64_t value);
bool zero128(uint128_t *number);
bool zero256(uint256_t *number);
void copy128(uint128_t *target, uint128_t *number);
void copy256(uint256_t *target, uint256_t *number);
void clear128(uint128_t *target);
void clear256(uint256_t *target);
void shiftl128(uint128_t *number, uint32_t value, uint128_t *target);
void shiftr128(uint128_t *number, uint32_t value, uint128_t *target);
void shiftl256(uint256_t *number, uint32_t value, uint256_t *target);
void shiftr256(uint256_t *number, uint32_t value, uint256_t *target);
uint32_t bits128(uint128_t *number);
uint32_t bits256(uint256_t *number);
bool equal128(uint128_t *number1, uint128_t *number2);
bool equal256(uint256_t *number1, uint256_t *number2);
bool gt128(uint128_t *number1, uint128_t *number2);
bool gt256(uint256_t *number1, uint256_t *number2);
bool gte128(uint128_t *number1, uint128_t *number2);
bool gte256(uint256_t *number1, uint256_t *number2);
void add128(uint128_t *number1, uint128_t *number2, uint128_t *target);
void add256(uint256_t *number1, uint256_t *number2, uint256_t *target);
void sub128(uint128_t *number1, uint128_t *number2, uint128_t *target);
void sub256(uint256_t *number1, uint256_t *number2, uint256_t *target);
void or128(uint128_t *number1, uint128_t *number2, uint128_t *target);
void or256(uint256_t *number1, uint256_t *number2, uint256_t *target);
void mul128(uint128_t *number1, uint128_t *number2, uint128_t *target);
void mul256(uint256_t *number1, uint256_t *number2, uint256_t *target);
void divmod128(uint128_t *l, uint128_t *r, uint128_t *div, uint128_t *mod);
void divmod256(uint256_t *l, uint256_t *r, uint256_t *div, uint256_t *mod);
bool tostring128(uint128_t *number, uint32_t base, char *out, uint32_t outLength);
bool tostring256(uint256_t *number, uint32_t base, char *out, uint32_t outLength);
void readu128BE(const uint8_t *const buffer, uint128_t *target);
void readu256BE(const uint8_t *const buffer, uint256_t *target);
void write_u64_be(uint8_t *const buffer, uint64_t value);
void read_u64_be(const uint8_t *const in, uint64_t *const out);
bool zero128(const uint128_t *const number);
bool zero256(const uint256_t *const number);
void copy128(uint128_t *const target, const uint128_t *const number);
void copy256(uint256_t *const target, const uint256_t *const number);
void clear128(uint128_t *const target);
void clear256(uint256_t *const target);
void shiftl128(const uint128_t *const number, uint32_t value, uint128_t *const target);
void shiftr128(const uint128_t *const number, uint32_t value, uint128_t *const target);
void shiftl256(const uint256_t *const number, uint32_t value, uint256_t *const target);
void shiftr256(const uint256_t *const number, uint32_t value, uint256_t *const target);
uint32_t bits128(const uint128_t *const number);
uint32_t bits256(const uint256_t *const number);
bool equal128(const uint128_t *const number1, const uint128_t *const number2);
bool equal256(const uint256_t *const number1, const uint256_t *const number2);
bool gt128(const uint128_t *const number1, const uint128_t *const number2);
bool gt256(const uint256_t *const number1, const uint256_t *const number2);
bool gte128(const uint128_t *const number1, const uint128_t *const number2);
bool gte256(const uint256_t *const number1, const uint256_t *const number2);
void add128(const uint128_t *const number1,
const uint128_t *const number2,
uint128_t *const target);
void add256(const uint256_t *const number1,
const uint256_t *const number2,
uint256_t *const target);
void sub128(const uint128_t *const number1,
const uint128_t *const number2,
uint128_t *const target);
void sub256(const uint256_t *const number1,
const uint256_t *const number2,
uint256_t *const target);
void or128(const uint128_t *const number1, const uint128_t *const number2, uint128_t *const target);
void or256(const uint256_t *const number1, const uint256_t *const number2, uint256_t *const target);
void mul128(const uint128_t *const number1,
const uint128_t *const number2,
uint128_t *const target);
void mul256(const uint256_t *const number1,
const uint256_t *const number2,
uint256_t *const target);
void divmod128(const uint128_t *const l,
const uint128_t *const r,
uint128_t *const div,
uint128_t *const mod);
void divmod256(const uint256_t *const l,
const uint256_t *const r,
uint256_t *const div,
uint256_t *const mod);
bool tostring128(const uint128_t *const number, uint32_t base, char *const out, uint32_t outLength);
bool tostring256(const uint256_t *const number, uint32_t base, char *const out, uint32_t outLength);
#endif // _UINT256_H_