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Ruby
1.9.3p551(2014-11-13revision48407)
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#include "ruby/ruby.h"#include "internal.h"#include <ctype.h>#include <stdio.h>#include <errno.h>#include <math.h>#include <float.h>#include "ruby/util.h"#include <sys/types.h>#include <sys/stat.h>#include "stdlib.h"#include "string.h"Go to the source code of this file.
Data Structures | |
| struct | stack_node |
| union | U |
| struct | Bigint |
Macros | |
| #define | S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR) |
| #define | A ((int*)a) |
| #define | B ((int*)b) |
| #define | C ((int*)c) |
| #define | D ((int*)d) |
| #define | mmprepare(base, size) |
| #define | mmarg mmkind, size, high, low |
| #define | mmswap(a, b) mmswap_((a),(b),mmarg) |
| #define | mmrot3(a, b, c) mmrot3_((a),(b),(c),mmarg) |
| #define | PUSH(ll, rr) do { top->LL = (ll); top->RR = (rr); ++top; } while (0) /* Push L,l,R,r */ |
| #define | POP(ll, rr) do { --top; (ll) = top->LL; (rr) = top->RR; } while (0) /* Pop L,l,R,r */ |
| #define | med3(a, b, c) |
| #define | PATH_MAX 8192 |
| #define | IEEE_LITTLE_ENDIAN |
| #define | MALLOC malloc |
| #define | FREE free |
| #define | PRIVATE_MEM 2304 |
| #define | PRIVATE_mem ((PRIVATE_MEM+sizeof(double)-1)/sizeof(double)) |
| #define | IEEE_Arith |
| #define | word0(x) ((x).L[1]) |
| #define | word1(x) ((x).L[0]) |
| #define | dval(x) ((x).d) |
| #define | Storeinc(a, b, c) |
| #define | Exp_shift 20 |
| #define | Exp_shift1 20 |
| #define | Exp_msk1 0x100000 |
| #define | Exp_msk11 0x100000 |
| #define | Exp_mask 0x7ff00000 |
| #define | P 53 |
| #define | Bias 1023 |
| #define | Emin (-1022) |
| #define | Exp_1 0x3ff00000 |
| #define | Exp_11 0x3ff00000 |
| #define | Ebits 11 |
| #define | Frac_mask 0xfffff |
| #define | Frac_mask1 0xfffff |
| #define | Ten_pmax 22 |
| #define | Bletch 0x10 |
| #define | Bndry_mask 0xfffff |
| #define | Bndry_mask1 0xfffff |
| #define | LSB 1 |
| #define | Sign_bit 0x80000000 |
| #define | Log2P 1 |
| #define | Tiny0 0 |
| #define | Tiny1 1 |
| #define | Quick_max 14 |
| #define | Int_max 14 |
| #define | Avoid_Underflow |
| #define | Flt_Rounds 1 |
| #define | Rounding Flt_Rounds |
| #define | rounded_product(a, b) ((a) *= (b)) |
| #define | rounded_quotient(a, b) ((a) /= (b)) |
| #define | Big0 (Frac_mask1 | Exp_msk1*(DBL_MAX_EXP+Bias-1)) |
| #define | Big1 0xffffffff |
| #define | Pack_32 |
| #define | FFFFFFFF 0xffffffffUL |
| #define | Llong long long |
| #define | ULLong unsigned Llong |
| #define | MULTIPLE_THREADS 1 |
| #define | ACQUIRE_DTOA_LOCK(n) /*unused right now*/ |
| #define | FREE_DTOA_LOCK(n) /*unused right now*/ |
| #define | Kmax 15 |
| #define | Bcopy(x, y) |
| #define | d0 word0(d) |
| #define | d1 word1(d) |
| #define | d0 word0(d) |
| #define | d1 word1(d) |
| #define | Scale_Bit 0x10 |
| #define | n_bigtens 5 |
| #define | rv_alloc(i) xmalloc(i) |
| #define | rv_strdup(s, rve) nrv_alloc((s), (rve), strlen(s)+1) |
| #define | DBL_MANH_SIZE 20 |
| #define | DBL_MANL_SIZE 32 |
| #define | DBL_ADJ (DBL_MAX_EXP - 2) |
| #define | SIGFIGS ((DBL_MANT_DIG + 3) / 4 + 1) |
| #define | dexp_get(u) ((int)(word0(u) >> Exp_shift) & ~Exp_msk1) |
| #define | dexp_set(u, v) (word0(u) = (((int)(word0(u)) & ~Exp_mask) | ((v) << Exp_shift))) |
| #define | dmanh_get(u) ((uint32_t)(word0(u) & Frac_mask)) |
| #define | dmanl_get(u) ((uint32_t)word1(u)) |
Typedefs | |
| typedef U | double_u |
| typedef struct Bigint | Bigint |
Functions | |
| unsigned long | ruby_scan_oct (const char *start, size_t len, size_t *retlen) |
| unsigned long | ruby_scan_hex (const char *start, size_t len, size_t *retlen) |
| static unsigned long | scan_digits (const char *str, int base, size_t *retlen, int *overflow) |
| unsigned long | ruby_strtoul (const char *str, char **endptr, int base) |
| static void | mmswap_ (register char *a, register char *b, int mmkind, size_t size, size_t high, size_t low) |
| static void | mmrot3_ (register char *a, register char *b, register char *c, int mmkind, size_t size, size_t high, size_t low) |
| void | ruby_qsort (void *base, const size_t nel, const size_t size, int(*cmp)(const void *, const void *, void *), void *d) |
| char * | ruby_strdup (const char *str) |
| char * | ruby_getcwd (void) |
| static Bigint * | Balloc (int k) |
| static void | Bfree (Bigint *v) |
| static Bigint * | multadd (Bigint *b, int m, int a) |
| static Bigint * | s2b (const char *s, int nd0, int nd, ULong y9) |
| static int | hi0bits (register ULong x) |
| static int | lo0bits (ULong *y) |
| static Bigint * | i2b (int i) |
| static Bigint * | mult (Bigint *a, Bigint *b) |
| static Bigint * | pow5mult (Bigint *b, int k) |
| static Bigint * | lshift (Bigint *b, int k) |
| static int | cmp (Bigint *a, Bigint *b) |
| static Bigint * | diff (Bigint *a, Bigint *b) |
| static double | ulp (double x_) |
| static double | b2d (Bigint *a, int *e) |
| static Bigint * | d2b (double d_, int *e, int *bits) |
| static double | ratio (Bigint *a, Bigint *b) |
| double | ruby_strtod (const char *s00, char **se) |
| static int | quorem (Bigint *b, Bigint *S) |
| static char * | nrv_alloc (const char *s, char **rve, size_t n) |
| char * | ruby_dtoa (double d_, int mode, int ndigits, int *decpt, int *sign, char **rve) |
| void | ruby_each_words (const char *str, void(*func)(const char *, int, void *), void *arg) |
| char * | ruby_hdtoa (double d, const char *xdigs, int ndigits, int *decpt, int *sign, char **rve) |
Variables | |
| static double | private_mem [PRIVATE_mem] |
| static double * | pmem_next = private_mem |
| static Bigint * | freelist [Kmax+1] |
| static Bigint * | p5s |
| static const double | tens [] |
| static const double | bigtens [] = { 1e16, 1e32, 1e64, 1e128, 1e256 } |
| static const double | tinytens [] |
| static const char | INFSTR [] = "Infinity" |
| static const char | NANSTR [] = "NaN" |
| static const char | ZEROSTR [] = "0" |
| #define ACQUIRE_DTOA_LOCK | ( | n | ) | /*unused right now*/ |
Definition at line 948 of file util.c.
Referenced by Balloc(), Bfree(), and pow5mult().
| #define Avoid_Underflow |
Definition at line 818 of file util.c.
Referenced by ruby_strtod().
| #define B ((int*)b) |
Definition at line 191 of file util.c.
Referenced by des_cipher(), mmrot3_(), and mmswap_().
| #define Bcopy | ( | x, | |
| y | |||
| ) |
Definition at line 1014 of file util.c.
Referenced by multadd(), ruby_dtoa(), and ruby_strtod().
| #define Bias 1023 |
Definition at line 799 of file util.c.
Referenced by d2b(), ruby_dtoa(), and ruby_strtod().
| #define Big0 (Frac_mask1 | Exp_msk1*(DBL_MAX_EXP+Bias-1)) |
Definition at line 914 of file util.c.
Referenced by ruby_strtod().
| #define Big1 0xffffffff |
Definition at line 915 of file util.c.
Referenced by ruby_strtod().
| #define Bletch 0x10 |
Definition at line 807 of file util.c.
Referenced by ruby_dtoa().
| #define Bndry_mask 0xfffff |
Definition at line 808 of file util.c.
Referenced by ruby_dtoa(), and ruby_strtod().
| #define Bndry_mask1 0xfffff |
Definition at line 809 of file util.c.
Referenced by ruby_strtod().
| #define d0 word0(d) |
Referenced by b2d(), d2b(), math_acos(), math_acosh(), math_asin(), math_atanh(), math_gamma(), math_lgamma(), math_log(), math_log10(), math_log2(), and math_sqrt().
| #define d0 word0(d) |
| #define d1 word1(d) |
Referenced by b2d(), comp_distance_value(), d2b(), distance_add(), inet_pton(), and rb_method_definition_eq().
| #define d1 word1(d) |
| #define DBL_ADJ (DBL_MAX_EXP - 2) |
Definition at line 3766 of file util.c.
Referenced by ruby_hdtoa().
| #define DBL_MANH_SIZE 20 |
Definition at line 3764 of file util.c.
Referenced by ruby_hdtoa().
| #define DBL_MANL_SIZE 32 |
Definition at line 3765 of file util.c.
Referenced by ruby_hdtoa().
Definition at line 3768 of file util.c.
Referenced by ruby_hdtoa().
Definition at line 3769 of file util.c.
Referenced by ruby_hdtoa().
Definition at line 3770 of file util.c.
Referenced by ruby_hdtoa().
Definition at line 3771 of file util.c.
Referenced by ruby_hdtoa().
| #define dval | ( | x | ) | ((x).d) |
Definition at line 771 of file util.c.
Referenced by b2d(), d2b(), ratio(), ruby_dtoa(), ruby_strtod(), and ulp().
| #define Emin (-1022) |
Definition at line 800 of file util.c.
Referenced by ruby_strtod().
| #define Exp_1 0x3ff00000 |
Definition at line 801 of file util.c.
Referenced by b2d(), ruby_dtoa(), and ruby_strtod().
| #define Exp_11 0x3ff00000 |
Definition at line 802 of file util.c.
Referenced by ruby_dtoa().
| #define Exp_mask 0x7ff00000 |
Definition at line 797 of file util.c.
Referenced by ruby_dtoa(), ruby_strtod(), and ulp().
| #define Exp_msk1 0x100000 |
Definition at line 795 of file util.c.
Referenced by d2b(), ratio(), ruby_dtoa(), ruby_strtod(), and ulp().
| #define Exp_shift 20 |
Definition at line 793 of file util.c.
Referenced by d2b(), ruby_dtoa(), ruby_strtod(), and ulp().
| #define Exp_shift1 20 |
Definition at line 794 of file util.c.
Referenced by ruby_dtoa().
| #define FFFFFFFF 0xffffffffUL |
| #define Flt_Rounds 1 |
Definition at line 828 of file util.c.
Referenced by ruby_dtoa(), and ruby_strtod().
| #define Frac_mask 0xfffff |
Definition at line 804 of file util.c.
Referenced by d2b(), ruby_dtoa(), and ruby_strtod().
| #define Frac_mask1 0xfffff |
Definition at line 805 of file util.c.
Referenced by ruby_dtoa().
| #define FREE_DTOA_LOCK | ( | n | ) | /*unused right now*/ |
Definition at line 949 of file util.c.
Referenced by Balloc(), Bfree(), and pow5mult().
| #define IEEE_Arith |
Definition at line 699 of file util.c.
Referenced by ruby_strtod().
| #define Int_max 14 |
Definition at line 816 of file util.c.
Referenced by ruby_dtoa().
| #define Log2P 1 |
Definition at line 812 of file util.c.
Referenced by ruby_dtoa(), and ruby_strtod().
| #define LSB 1 |
Definition at line 810 of file util.c.
Referenced by ruby_strtod().
| #define med3 | ( | a, | |
| b, | |||
| c | |||
| ) |
Definition at line 268 of file util.c.
Referenced by ruby_qsort().
| #define mmprepare | ( | base, | |
| size | |||
| ) |
Definition at line 253 of file util.c.
Referenced by ruby_qsort().
Definition at line 229 of file util.c.
Referenced by ruby_qsort().
| #define n_bigtens 5 |
Definition at line 1809 of file util.c.
Referenced by ruby_dtoa(), and ruby_strtod().
| #define P 53 |
Definition at line 798 of file util.c.
Referenced by d2b(), ruby_dtoa(), ruby_strtod(), and ulp().
| #define PATH_MAX 8192 |
Referenced by ruby_getcwd().
Definition at line 266 of file util.c.
Referenced by ruby_qsort().
| #define PRIVATE_mem ((PRIVATE_MEM+sizeof(double)-1)/sizeof(double)) |
Definition at line 265 of file util.c.
Referenced by ruby_qsort().
| #define Quick_max 14 |
Definition at line 815 of file util.c.
Referenced by ruby_dtoa().
| #define rounded_product | ( | a, | |
| b | |||
| ) | ((a) *= (b)) |
Definition at line 910 of file util.c.
Referenced by ruby_strtod().
| #define rounded_quotient | ( | a, | |
| b | |||
| ) | ((a) /= (b)) |
Definition at line 911 of file util.c.
Referenced by ruby_strtod().
| #define Rounding Flt_Rounds |
Definition at line 837 of file util.c.
Referenced by ruby_dtoa(), and ruby_strtod().
Definition at line 2979 of file util.c.
Referenced by nrv_alloc(), ruby_dtoa(), and ruby_hdtoa().
Definition at line 2994 of file util.c.
Referenced by ruby_dtoa(), and ruby_hdtoa().
| #define Scale_Bit 0x10 |
Definition at line 1808 of file util.c.
Referenced by ruby_strtod().
| #define SIGFIGS ((DBL_MANT_DIG + 3) / 4 + 1) |
Definition at line 3767 of file util.c.
Referenced by ruby_hdtoa().
| #define Sign_bit 0x80000000 |
Definition at line 811 of file util.c.
Referenced by ruby_dtoa(), and ruby_hdtoa().
| #define Storeinc | ( | a, | |
| b, | |||
| c | |||
| ) |
| #define Ten_pmax 22 |
Definition at line 806 of file util.c.
Referenced by ruby_dtoa(), and ruby_strtod().
| #define Tiny0 0 |
Definition at line 813 of file util.c.
Referenced by ruby_strtod().
| #define Tiny1 1 |
Definition at line 814 of file util.c.
Referenced by ruby_strtod().
| #define ULLong unsigned Llong |
| #define word0 | ( | x | ) | ((x).L[1]) |
Definition at line 765 of file util.c.
Referenced by b2d(), d2b(), ratio(), ruby_dtoa(), ruby_hdtoa(), ruby_strtod(), and ulp().
| #define word1 | ( | x | ) | ((x).L[0]) |
Definition at line 766 of file util.c.
Referenced by b2d(), d2b(), ruby_dtoa(), ruby_strtod(), and ulp().
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Definition at line 965 of file util.c.
References ACQUIRE_DTOA_LOCK, FREE_DTOA_LOCK, freelist, Bigint::k, Kmax, len, MALLOC, Bigint::maxwds, Bigint::next, pmem_next, PRIVATE_mem, private_mem, Bigint::sign, Bigint::wds, and Bigint::x.
Referenced by d2b(), diff(), i2b(), lshift(), mult(), multadd(), ruby_dtoa(), ruby_strtod(), and s2b().
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Definition at line 1000 of file util.c.
References ACQUIRE_DTOA_LOCK, FREE, FREE_DTOA_LOCK, freelist, Kmax, and v.
Referenced by lshift(), multadd(), pow5mult(), ruby_dtoa(), and ruby_strtod().
Definition at line 1395 of file util.c.
References i, Bigint::wds, and Bigint::x.
Referenced by diff(), quorem(), ruby_dtoa(), ruby_qsort(), and ruby_strtod().
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Definition at line 1424 of file util.c.
References Balloc(), cmp(), FFFFFFFF, i, Bigint::k, Bigint::sign, Storeinc, ULLong, Bigint::wds, and Bigint::x.
Referenced by fun_sio_from_gb18030(), fun_sio_to_gb18030(), num_step(), pair_byte_cmp(), rb_dlptr_cmp(), ruby_dtoa(), and ruby_strtod().
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Definition at line 1175 of file util.c.
References Balloc(), i, Bigint::wds, and Bigint::x.
Referenced by pow5mult(), ruby_dtoa(), and ruby_strtod().
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Definition at line 1341 of file util.c.
References Balloc(), Bfree(), i, Bigint::k, Bigint::maxwds, Bigint::wds, and Bigint::x.
Referenced by ruby_dtoa(), and ruby_strtod().
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Definition at line 1186 of file util.c.
References Balloc(), FFFFFFFF, Bigint::k, Bigint::maxwds, Storeinc, ULLong, Bigint::wds, and Bigint::x.
Referenced by pow5mult(), ruby_dtoa(), and ruby_strtod().
Definition at line 1018 of file util.c.
References Balloc(), Bcopy, Bfree(), FFFFFFFF, i, Bigint::k, Bigint::maxwds, ULLong, Bigint::wds, and Bigint::x.
Referenced by pow5mult(), ruby_dtoa(), and s2b().
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Definition at line 1289 of file util.c.
References ACQUIRE_DTOA_LOCK, Bfree(), FREE_DTOA_LOCK, i, i2b(), Bigint::k, mult(), multadd(), Bigint::next, and p5s.
Referenced by ruby_dtoa(), and ruby_strtod().
Definition at line 2858 of file util.c.
References cmp(), FFFFFFFF, S, Storeinc, ULLong, Bigint::wds, and Bigint::x.
Referenced by ruby_dtoa().
Definition at line 1750 of file util.c.
References b2d(), dval, Exp_msk1, Bigint::k, Bigint::wds, and word0.
Referenced by ruby_strtod().
| char* ruby_dtoa | ( | double | d_, |
| int | mode, | ||
| int | ndigits, | ||
| int * | decpt, | ||
| int * | sign, | ||
| char ** | rve | ||
| ) |
Definition at line 3049 of file util.c.
References Balloc(), Bcopy, Bfree(), Bias, bigtens, Bletch, Bndry_mask, cmp(), d2b(), diff(), dval, Exp_1, Exp_11, Exp_mask, Exp_msk1, Exp_shift, Exp_shift1, Flt_Rounds, Frac_mask, Frac_mask1, hi0bits(), i, i2b(), INFSTR, Int_max, Bigint::k, Log2P, lshift(), mult(), multadd(), n_bigtens, NANSTR, no_digits, P, pow5mult(), Quick_max, quorem(), Rounding, rv_alloc, rv_strdup, S, Bigint::sign, Sign_bit, Ten_pmax, tens, Bigint::wds, word0, word1, Bigint::x, and ZEROSTR.
Referenced by flo_to_s(), and w_float().
Definition at line 3722 of file util.c.
Referenced by proc_options(), and ruby_set_debug_option().
| char* ruby_getcwd | ( | void | ) |
| char* ruby_hdtoa | ( | double | d, |
| const char * | xdigs, | ||
| int | ndigits, | ||
| int * | decpt, | ||
| int * | sign, | ||
| char ** | rve | ||
| ) |
Definition at line 3799 of file util.c.
References U::d, DBL_ADJ, DBL_MANH_SIZE, DBL_MANL_SIZE, DBL_MANT_DIG, DBL_MAX_EXP, dexp_get, dexp_set, dmanh_get, dmanl_get, INFSTR, isinf(), isnan, NANSTR, NULL, rv_alloc, rv_strdup, SIGFIGS, Bigint::sign, Sign_bit, word0, and ZEROSTR.
Definition at line 42 of file util.c.
Referenced by unescape_unicode_bmp(), and unescape_unicode_list().
Definition at line 28 of file util.c.
References len.
Referenced by parser_tokadd_escape(), and unescape_nonascii().
| char* ruby_strdup | ( | const char * | str | ) |
Definition at line 425 of file util.c.
References len, strlen(), and xmalloc.
Referenced by argf_initialize_copy(), compat_init_setproctitle(), load_lock(), ruby_setenv(), and yycompile().
| double ruby_strtod | ( | const char * | s00, |
| char ** | se | ||
| ) |
Definition at line 1903 of file util.c.
References Avoid_Underflow, Balloc(), Bcopy, Bfree(), Bias, Big0, Big1, bigtens, Bndry_mask, Bndry_mask1, cmp(), d2b(), DBL_DIG, DBL_MAX_10_EXP, DBL_MAX_EXP, diff(), dval, Emin, errno, Exp_1, Exp_mask, Exp_msk1, Exp_shift, FLT_RADIX, Flt_Rounds, Frac_mask, i, i2b(), IEEE_Arith, ISDIGIT, Bigint::k, Log2P, LSB, lshift(), match(), mult(), n_bigtens, NULL, P, pow5mult(), ratio(), rounded_product, rounded_quotient, Rounding, s2b(), Scale_Bit, Bigint::sign, strchr(), Ten_pmax, tens, Tiny0, Tiny1, tinytens, ulp(), Bigint::wds, word0, word1, and Bigint::x.
Definition at line 1069 of file util.c.
References Balloc(), i, Bigint::k, multadd(), Bigint::wds, and Bigint::x.
Referenced by ruby_strtod().
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Definition at line 1797 of file util.c.
Referenced by ruby_dtoa(), and ruby_strtod().
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Definition at line 3010 of file util.c.
Referenced by ruby_dtoa(), and ruby_hdtoa().
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Definition at line 3011 of file util.c.
Referenced by ruby_dtoa(), and ruby_hdtoa().
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Definition at line 1286 of file util.c.
Referenced by pow5mult().
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Definition at line 1786 of file util.c.
Referenced by ruby_dtoa(), and ruby_strtod().
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Definition at line 1798 of file util.c.
Referenced by ruby_strtod().
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Definition at line 3012 of file util.c.
Referenced by ruby_dtoa(), and ruby_hdtoa().
1.8.14