#ifndef FE_H
#define FE_H

#include "crypto_int32.h"

typedef crypto_int32 fe[10];

/*
fe means field element.
Here the field is \Z/(2^255-19).
An element t, entries t[0]...t[9], represents the integer
t[0]+2^26 t[1]+2^51 t[2]+2^77 t[3]+2^102 t[4]+...+2^230 t[9].
Bounds on each t[i] vary depending on context.
*/

#define fe_frombytes CRYPTO_NAMESPACE(fe_frombytes)
#define fe_tobytes CRYPTO_NAMESPACE(fe_tobytes)
#define fe_copy CRYPTO_NAMESPACE(fe_copy)
#define fe_0 CRYPTO_NAMESPACE(fe_0)
#define fe_1 CRYPTO_NAMESPACE(fe_1)
#define fe_cswap CRYPTO_NAMESPACE(fe_cswap)
#define fe_add CRYPTO_NAMESPACE(fe_add)
#define fe_sub CRYPTO_NAMESPACE(fe_sub)
#define fe_mul CRYPTO_NAMESPACE(fe_mul)
#define fe_sq CRYPTO_NAMESPACE(fe_sq)
#define fe_mul121666 CRYPTO_NAMESPACE(fe_mul121666)
#define fe_invert CRYPTO_NAMESPACE(fe_invert)

extern void fe_frombytes(fe,const unsigned char *);
extern void fe_tobytes(unsigned char *,fe);

extern void fe_copy(fe,fe);
extern void fe_0(fe);
extern void fe_1(fe);
extern void fe_cswap(fe,fe,unsigned int);

extern void fe_add(fe,fe,fe);
extern void fe_sub(fe,fe,fe);
extern void fe_mul(fe,fe,fe);
extern void fe_sq(fe,fe);
extern void fe_mul121666(fe,fe);
extern void fe_invert(fe,fe);

#endif