1 /* 2 * vint64ops.h - operations on 'vint64' values 3 * 4 * Written by Juergen Perlinger (perlinger@ntp.org) for the NTP project. 5 * The contents of 'html/copyright.html' apply. 6 * ---------------------------------------------------------------------- 7 * This is an attempt to get the vint64 calculations stuff centralised. 8 */ 9 #ifndef VINT64OPS_H 10 #define VINT64OPS_H 11 12 /* signed/unsigned compare. returns 1/0/-1 if lhs >/=/< rhs */ 13 extern int icmpv64(const vint64 * lhs, const vint64 * rhs); 14 extern int ucmpv64(const vint64 * lhs, const vint64 * rhs); 15 16 /* add / subtract */ 17 extern vint64 addv64(const vint64 *lhs, const vint64 *rhs); 18 extern vint64 addv64i32(const vint64 * lhs, int32_t rhs); 19 extern vint64 addv64u32(const vint64 * lhs, uint32_t rhs); 20 21 extern vint64 subv64(const vint64 *lhs, const vint64 *rhs); 22 extern vint64 subv64i32(const vint64 * lhs, int32_t rhs); 23 extern vint64 subv64u32(const vint64 * lhs, uint32_t rhs); 24 25 /* parsing. works like strtoul() or strtoull() */ 26 extern vint64 strtouv64(char const * begp, char const ** const endp, int base); 27 28 #endif /*!defined(VINT64OPS_H)*/ 29