2 * UCW Library -- Conversions of Strings to Numbers: Declarations
4 * (c) 2010 Daniel Fiala <danfiala@ucw.cz>
6 * This software may be freely distributed and used according to the terms
7 * of the GNU Lesser General Public License.
13 enum str_to_num_flags {
14 STN_SIGNED = 0x20, // The resulting range is signed
15 STN_MINUS = 0x40, // Allow optional '-' sign
16 STN_PLUS = 0x80, // Allow optional '+' sign
17 STN_TRUNC = 0x100, // Allow range overflow -> truncate to the allowed range
18 STN_DEC = 0x200, // Support decimal numbers
19 STN_HEX = 0x400, // Support hexadecimal numbers (0x...)
20 STN_BIN = 0x800, // Support binary numbers (0b...)
21 STN_OCT = 0x1000, // Support octal numbers (0o...)
22 STN_OCT0 = 0x2000, // Support octal numbers (0[0-7]...)
23 STN_UNDERSCORE = 0x4000, // Number can contain underscore characters to increase readability (eg. 1_000_000)
24 STN_WHOLE = 0x8000, // Number can be terminated only by \0 character
27 #define STN_DBASES_MASK 0x1F
28 #define STN_SIGNS (STN_MINUS | STN_PLUS)
29 #define STN_BASES (STN_DEC | STN_HEX | STN_BIN | STN_OCT)
30 #define STN_BASES0 (STN_BASES | STN_OCT0)
31 #define STN_FLAGS (STN_MINUS | STN_PLUS | STN_BASES)
32 #define STN_UFLAGS (STN_FLAGS | STN_UNDERSCORE)
33 #define STN_SFLAGS (STN_FLAGS | STN_SIGNED)
34 #define STN_USFLAGS (STN_SFLAGS | STN_UNDERSCORE)
36 #define STN_DECLARE_CONVERTOR(type, suffix) \
37 const char *str_to_##suffix(type *num, const char *str, const char **next, const uns flags)
39 #define STN_SIGNED_CONVERTOR(type, suffix, usuffix) \
40 static inline const char *str_to_##suffix(type *num, const char *str, const char **next, const uns flags) \
42 return str_to_##usuffix((void *) num, str, next, flags | STN_SIGNED | STN_PLUS | STN_MINUS); \
45 STN_DECLARE_CONVERTOR(uns, uns);
46 STN_SIGNED_CONVERTOR(int, int, uns)
48 STN_DECLARE_CONVERTOR(uintmax_t, uintmax);
49 STN_SIGNED_CONVERTOR(intmax_t, intmax, uintmax)