/*      $NetBSD: vint64ops.h,v 1.6 2024/08/18 20:46:50 christos Exp $   */

/*
* vint64ops.h - operations on 'vint64' values
*
* Written by Juergen Perlinger ([email protected]) for the NTP project.
* The contents of 'html/copyright.html' apply.
* ----------------------------------------------------------------------
* This is an attempt to get the vint64 calculations stuff centralised.
*/
#ifndef VINT64OPS_H
#define VINT64OPS_H

/* signed/unsigned compare. returns 1/0/-1 if lhs >/=/< rhs */
extern int icmpv64(const vint64 * lhs,  const vint64 * rhs);
extern int ucmpv64(const vint64 * lhs,  const vint64 * rhs);

/* add / subtract */
extern vint64 addv64(const vint64 *lhs, const vint64 *rhs);
extern vint64 addv64i32(const vint64 * lhs, int32_t rhs);
extern vint64 addv64u32(const vint64 * lhs, uint32_t rhs);

extern vint64 subv64(const vint64 *lhs, const vint64 *rhs);
extern vint64 subv64i32(const vint64 * lhs, int32_t rhs);
extern vint64 subv64u32(const vint64 * lhs, uint32_t rhs);

/* parsing. works like strtoul() or strtoull() */
extern vint64 strtouv64(char * begp, char ** endp, int base);

#endif /*!defined(VINT64OPS_H)*/

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