pqc/crypto_kem/ledakemlt12/clean/gf2x_limbs.h

#ifndef GF2X_LIMBS_H
#define GF2X_LIMBS_H

#include <inttypes.h>
#include <limits.h>
#include <stddef.h>
#include "qc_ldpc_parameters.h"



/*----------------------------------------------------------------------------*/
/* limb size definitions for the multi-precision GF(2^x) library              */
/*----------------------------------------------------------------------------*/

// #ifndef CPU_WORD_BITS
// typedef size_t DIGIT;
// #define DIGIT_MAX SIZE_MAX
// #else
// // gcc -DCPU_WORD_BITS=64 ...
// #define CAT(a, b, c) PRIMITIVE_CAT(a, b, c)
// #define PRIMITIVE_CAT(a, b, c) a ## b ## c
//
// typedef CAT( uint, CPU_WORD_BITS, _t ) DIGIT;
// #define DIGIT_MAX (CAT(UINT, CPU_WORD_BITS, _MAX))
// #endif
//
// #if (DIGIT_MAX == ULLONG_MAX)
// #define DIGIT_IS_ULLONG
// #elif (DIGIT_MAX == ULONG_MAX)
// #define DIGIT_IS_ULONG
// #elif (DIGIT_MAX == UINT_MAX)
// #define DIGIT_IS_UINT
// #elif (DIGIT_MAX == UCHAR_MAX)
// #define DIGIT_IS_UCHAR
// #else
// #error "unable to find the type of CPU_WORD_BITS"
// #endif
//
// #if (DIGIT_MAX == UINT64_MAX)
// #define DIGIT_IS_UINT64
// #define DIGIT_SIZE_B 8
// #elif (DIGIT_MAX == UINT32_MAX)
// #define DIGIT_IS_UINT32
// #define DIGIT_SIZE_B 4
// #elif (DIGIT_MAX == UINT16_MAX)
// #define DIGIT_IS_UINT16
// #define DIGIT_SIZE_B 2
// #elif (DIGIT_MAX == UINT8_MAX)
// #define DIGIT_IS_UINT8
// #define DIGIT_SIZE_B 1
// #else
// #error "unable to find the bitsize of size_t"
// #endif

// #define LITTLE_ENDIAN

typedef uint64_t DIGIT;
#define DIGIT_IS_UINT64
#define DIGIT_IS_ULLONG
#define DIGIT_SIZE_B (8)
#define DIGIT_SIZE_b (DIGIT_SIZE_B << 3)

#define POSITION_T uint32_t

#endif