X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?a=blobdiff_plain;f=ginac%2Futils.h;h=98c67587a800d6be7207fd809c1d5d8ae86b6206;hb=d625a28c3def007a9d2d5108141a6f6a4889bf9d;hp=a4af3300e38d8c9d45370a30d908513a6759c6f2;hpb=7d870583a6bf21a2ffb7b6f051b702064623892e;p=ginac.git diff --git a/ginac/utils.h b/ginac/utils.h index a4af3300..98c67587 100644 --- a/ginac/utils.h +++ b/ginac/utils.h @@ -24,10 +24,15 @@ #ifndef __GINAC_UTILS_H__ #define __GINAC_UTILS_H__ +#ifdef HAVE_CONFIG_H #include "config.h" +#endif #include #include +#ifdef HAVE_STDINT_H +#include // for uintptr_t +#endif #include "assertion.h" @@ -65,12 +70,8 @@ inline int compare_pointers(const T * a, const T * b) return 0; } -#if SIZEOF_VOID_P == SIZEOF_INT -typedef unsigned int p_int; -#elif SIZEOF_VOID_P == SIZEOF_LONG -typedef unsigned long p_int; -#elif SIZEOF_VOID_P == SIZEOF_LONG_LONG -typedef unsigned long long p_int; +#ifdef HAVE_STDINT_H +typedef uintptr_t p_int; #else typedef unsigned long p_int; #endif @@ -80,24 +81,26 @@ inline unsigned golden_ratio_hash(p_int n) { // This function works much better when fast arithmetic with at // least 64 significant bits is available. -#if SIZEOF_LONG >= 8 + if (sizeof(long) >= 8) { // So 'long' has 64 bits. Excellent! We prefer it because it might be // more efficient than 'long long'. unsigned long l = n * 0x4f1bbcddUL; return (unsigned)l; -#elif SIZEOF_LONG_LONG >= 8 + } +#ifdef HAVE_LONG_LONG + else if (sizeof(long long) >= 8) { // This requires 'long long' (or an equivalent 64 bit type)---which is, // unfortunately, not ANSI-C++-compliant. // (Yet C99 demands it, which is reason for hope.) unsigned long long l = n * 0x4f1bbcddULL; return (unsigned)l; -#else + } +#endif // Without a type with 64 significant bits do the multiplication manually // by splitting n up into the lower and upper two bytes. const unsigned n0 = (n & 0x0000ffffU); const unsigned n1 = (n & 0xffff0000U) >> 16; return (n0 * 0x0000bcddU) + ((n1 * 0x0000bcddU + n0 * 0x00004f1bU) << 16); -#endif } /* Compute the sign of a permutation of a container, with and without an @@ -402,21 +405,7 @@ extern const ex _ex120; // Helper macros for class implementations (mostly useful for trivial classes) #define DEFAULT_CTOR(classname) \ -classname::classname() : inherited(&classname::tinfo_static) { setflag(status_flags::evaluated | status_flags::expanded); } - -#define DEFAULT_UNARCHIVE(classname) \ -ex classname::unarchive(const archive_node &n, lst &sym_lst) \ -{ \ - return (new classname(n, sym_lst))->setflag(status_flags::dynallocated); \ -} - -#define DEFAULT_ARCHIVING(classname) \ -classname::classname(const archive_node &n, lst &sym_lst) : inherited(n, sym_lst) {} \ -DEFAULT_UNARCHIVE(classname) \ -void classname::archive(archive_node &n) const \ -{ \ - inherited::archive(n); \ -} +classname::classname() { setflag(status_flags::evaluated | status_flags::expanded); } #define DEFAULT_COMPARE(classname) \ int classname::compare_same_type(const basic & other) const \