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    Annotation of /trunk/mkinitrd-magellan/busybox/include/xatonum.h

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    Revision 984 - (hide annotations) (download)
    Sun May 30 11:32:42 2010 UTC (14 years ago) by niro
    File MIME type: text/plain
    File size: 7154 byte(s) 
    -updated to busybox-1.16.1 and enabled blkid/uuid support in default config
    1 niro 532 /* vi: set sw=4 ts=4: */
    2     /*
    3     * ascii-to-numbers implementations for busybox
    4     *
    5     * Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
    6     *
    7     * Licensed under GPLv2, see file LICENSE in this tarball for details.
    8     */
    9    
    10 niro 984 PUSH_AND_SET_FUNCTION_VISIBILITY_TO_HIDDEN
    11 niro 816
    12 niro 532 /* Provides extern declarations of functions */
    13     #define DECLARE_STR_CONV(type, T, UT) \
    14     \
    15 niro 816 unsigned type xstrto##UT##_range_sfx(const char *str, int b, unsigned type l, unsigned type u, const struct suffix_mult *sfx) FAST_FUNC; \
    16     unsigned type xstrto##UT##_range(const char *str, int b, unsigned type l, unsigned type u) FAST_FUNC; \
    17     unsigned type xstrto##UT##_sfx(const char *str, int b, const struct suffix_mult *sfx) FAST_FUNC; \
    18     unsigned type xstrto##UT(const char *str, int b) FAST_FUNC; \
    19     unsigned type xato##UT##_range_sfx(const char *str, unsigned type l, unsigned type u, const struct suffix_mult *sfx) FAST_FUNC; \
    20     unsigned type xato##UT##_range(const char *str, unsigned type l, unsigned type u) FAST_FUNC; \
    21     unsigned type xato##UT##_sfx(const char *str, const struct suffix_mult *sfx) FAST_FUNC; \
    22     unsigned type xato##UT(const char *str) FAST_FUNC; \
    23     type xstrto##T##_range_sfx(const char *str, int b, type l, type u, const struct suffix_mult *sfx) FAST_FUNC; \
    24     type xstrto##T##_range(const char *str, int b, type l, type u) FAST_FUNC; \
    25 niro 984 type xstrto##T(const char *str, int b) FAST_FUNC; \
    26 niro 816 type xato##T##_range_sfx(const char *str, type l, type u, const struct suffix_mult *sfx) FAST_FUNC; \
    27     type xato##T##_range(const char *str, type l, type u) FAST_FUNC; \
    28     type xato##T##_sfx(const char *str, const struct suffix_mult *sfx) FAST_FUNC; \
    29     type xato##T(const char *str) FAST_FUNC; \
    30 niro 532
    31     /* Unsigned long long functions always exist */
    32     DECLARE_STR_CONV(long long, ll, ull)
    33    
    34    
    35     /* Provides inline definitions of functions */
    36     /* (useful for mapping them to the type of the same width) */
    37     #define DEFINE_EQUIV_STR_CONV(narrow, N, W, UN, UW) \
    38     \
    39 niro 816 static ALWAYS_INLINE \
    40 niro 532 unsigned narrow xstrto##UN##_range_sfx(const char *str, int b, unsigned narrow l, unsigned narrow u, const struct suffix_mult *sfx) \
    41     { return xstrto##UW##_range_sfx(str, b, l, u, sfx); } \
    42 niro 816 static ALWAYS_INLINE \
    43 niro 532 unsigned narrow xstrto##UN##_range(const char *str, int b, unsigned narrow l, unsigned narrow u) \
    44     { return xstrto##UW##_range(str, b, l, u); } \
    45 niro 816 static ALWAYS_INLINE \
    46 niro 532 unsigned narrow xstrto##UN##_sfx(const char *str, int b, const struct suffix_mult *sfx) \
    47     { return xstrto##UW##_sfx(str, b, sfx); } \
    48 niro 816 static ALWAYS_INLINE \
    49 niro 532 unsigned narrow xstrto##UN(const char *str, int b) \
    50     { return xstrto##UW(str, b); } \
    51 niro 816 static ALWAYS_INLINE \
    52 niro 532 unsigned narrow xato##UN##_range_sfx(const char *str, unsigned narrow l, unsigned narrow u, const struct suffix_mult *sfx) \
    53     { return xato##UW##_range_sfx(str, l, u, sfx); } \
    54 niro 816 static ALWAYS_INLINE \
    55 niro 532 unsigned narrow xato##UN##_range(const char *str, unsigned narrow l, unsigned narrow u) \
    56     { return xato##UW##_range(str, l, u); } \
    57 niro 816 static ALWAYS_INLINE \
    58 niro 532 unsigned narrow xato##UN##_sfx(const char *str, const struct suffix_mult *sfx) \
    59     { return xato##UW##_sfx(str, sfx); } \
    60 niro 816 static ALWAYS_INLINE \
    61 niro 532 unsigned narrow xato##UN(const char *str) \
    62     { return xato##UW(str); } \
    63 niro 816 static ALWAYS_INLINE \
    64 niro 532 narrow xstrto##N##_range_sfx(const char *str, int b, narrow l, narrow u, const struct suffix_mult *sfx) \
    65     { return xstrto##W##_range_sfx(str, b, l, u, sfx); } \
    66 niro 816 static ALWAYS_INLINE \
    67 niro 532 narrow xstrto##N##_range(const char *str, int b, narrow l, narrow u) \
    68     { return xstrto##W##_range(str, b, l, u); } \
    69 niro 816 static ALWAYS_INLINE \
    70 niro 984 narrow xstrto##N(const char *str, int b) \
    71     { return xstrto##W(str, b); } \
    72     static ALWAYS_INLINE \
    73 niro 532 narrow xato##N##_range_sfx(const char *str, narrow l, narrow u, const struct suffix_mult *sfx) \
    74     { return xato##W##_range_sfx(str, l, u, sfx); } \
    75 niro 816 static ALWAYS_INLINE \
    76 niro 532 narrow xato##N##_range(const char *str, narrow l, narrow u) \
    77     { return xato##W##_range(str, l, u); } \
    78 niro 816 static ALWAYS_INLINE \
    79 niro 532 narrow xato##N##_sfx(const char *str, const struct suffix_mult *sfx) \
    80     { return xato##W##_sfx(str, sfx); } \
    81 niro 816 static ALWAYS_INLINE \
    82 niro 532 narrow xato##N(const char *str) \
    83     { return xato##W(str); } \
    84    
    85     /* If long == long long, then just map them one-to-one */
    86     #if ULONG_MAX == ULLONG_MAX
    87     DEFINE_EQUIV_STR_CONV(long, l, ll, ul, ull)
    88     #else
    89     /* Else provide extern defs */
    90     DECLARE_STR_CONV(long, l, ul)
    91     #endif
    92    
    93     /* Same for int -> [long] long */
    94     #if UINT_MAX == ULLONG_MAX
    95     DEFINE_EQUIV_STR_CONV(int, i, ll, u, ull)
    96     #elif UINT_MAX == ULONG_MAX
    97     DEFINE_EQUIV_STR_CONV(int, i, l, u, ul)
    98     #else
    99     DECLARE_STR_CONV(int, i, u)
    100     #endif
    101    
    102     /* Specialized */
    103    
    104 niro 984 uint32_t BUG_xatou32_unimplemented(void);
    105 niro 816 static ALWAYS_INLINE uint32_t xatou32(const char *numstr)
    106 niro 532 {
    107     if (UINT_MAX == 0xffffffff)
    108     return xatou(numstr);
    109     if (ULONG_MAX == 0xffffffff)
    110     return xatoul(numstr);
    111     return BUG_xatou32_unimplemented();
    112     }
    113    
    114 niro 816 /* Non-aborting kind of convertors: bb_strto[u][l]l */
    115 niro 532
    116 niro 816 /* On exit: errno = 0 only if there was non-empty, '\0' terminated value
    117     * errno = EINVAL if value was not '\0' terminated, but otherwise ok
    118     * Return value is still valid, caller should just check whether end[0]
    119     * is a valid terminating char for particular case. OTOH, if caller
    120     * requires '\0' terminated input, [s]he can just check errno == 0.
    121     * errno = ERANGE if value had alphanumeric terminating char ("1234abcg").
    122     * errno = ERANGE if value is out of range, missing, etc.
    123     * errno = ERANGE if value had minus sign for strtouXX (even "-0" is not ok )
    124     * return value is all-ones in this case.
    125     */
    126 niro 532
    127 niro 816 unsigned long long bb_strtoull(const char *arg, char **endp, int base) FAST_FUNC;
    128     long long bb_strtoll(const char *arg, char **endp, int base) FAST_FUNC;
    129    
    130 niro 532 #if ULONG_MAX == ULLONG_MAX
    131 niro 816 static ALWAYS_INLINE
    132 niro 532 unsigned long bb_strtoul(const char *arg, char **endp, int base)
    133     { return bb_strtoull(arg, endp, base); }
    134 niro 816 static ALWAYS_INLINE
    135 niro 532 long bb_strtol(const char *arg, char **endp, int base)
    136     { return bb_strtoll(arg, endp, base); }
    137     #else
    138 niro 816 unsigned long bb_strtoul(const char *arg, char **endp, int base) FAST_FUNC;
    139     long bb_strtol(const char *arg, char **endp, int base) FAST_FUNC;
    140 niro 532 #endif
    141    
    142     #if UINT_MAX == ULLONG_MAX
    143 niro 816 static ALWAYS_INLINE
    144 niro 532 unsigned bb_strtou(const char *arg, char **endp, int base)
    145     { return bb_strtoull(arg, endp, base); }
    146 niro 816 static ALWAYS_INLINE
    147 niro 532 int bb_strtoi(const char *arg, char **endp, int base)
    148     { return bb_strtoll(arg, endp, base); }
    149     #elif UINT_MAX == ULONG_MAX
    150 niro 816 static ALWAYS_INLINE
    151 niro 532 unsigned bb_strtou(const char *arg, char **endp, int base)
    152     { return bb_strtoul(arg, endp, base); }
    153 niro 816 static ALWAYS_INLINE
    154 niro 532 int bb_strtoi(const char *arg, char **endp, int base)
    155     { return bb_strtol(arg, endp, base); }
    156     #else
    157 niro 816 unsigned bb_strtou(const char *arg, char **endp, int base) FAST_FUNC;
    158     int bb_strtoi(const char *arg, char **endp, int base) FAST_FUNC;
    159 niro 532 #endif
    160    
    161 niro 984 uint32_t BUG_bb_strtou32_unimplemented(void);
    162 niro 816 static ALWAYS_INLINE
    163 niro 532 uint32_t bb_strtou32(const char *arg, char **endp, int base)
    164     {
    165     if (sizeof(uint32_t) == sizeof(unsigned))
    166     return bb_strtou(arg, endp, base);
    167     if (sizeof(uint32_t) == sizeof(unsigned long))
    168     return bb_strtoul(arg, endp, base);
    169     return BUG_bb_strtou32_unimplemented();
    170     }
    171    
    172     /* Floating point */
    173    
    174 niro 816 double bb_strtod(const char *arg, char **endp) FAST_FUNC;
    175    
    176 niro 984 POP_SAVED_FUNCTION_VISIBILITY