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/*
* UCW Library -- Conversions of Strings to Numbers: Declarations
*
* (c) 2010 Daniel Fiala <danfiala@ucw.cz>
*
* This software may be freely distributed and used according to the terms
* of the GNU Lesser General Public License.
*/
#ifndef _STRTONUM_H
#define _STRTONUM_H
#ifdef CONFIG_UCW_CLEAN_ABI
#define str_to_u32 ucw_str_to_u32
#define str_to_u64 ucw_str_to_u64
#define str_to_uint ucw_str_to_uint
#define str_to_uintmax ucw_str_to_uintmax
#define str_to_uns ucw_str_to_uns
#endif
// Set (flags & 0x1f) in the range 1 to 31 to denote the default base of the number
enum str_to_num_flags {
STN_SIGNED = 0x20, // The resulting range is signed
STN_MINUS = 0x40, // Allow optional '-' sign
STN_PLUS = 0x80, // Allow optional '+' sign
STN_TRUNC = 0x100, // Allow range overflow -> truncate to the allowed range
STN_DEC = 0x200, // Support decimal numbers (currently no prefix)
STN_HEX = 0x400, // Support hexadecimal numbers (0x...)
STN_BIN = 0x800, // Support binary numbers (0b...)
STN_OCT = 0x1000, // Support octal numbers (0o...)
STN_OCT0 = 0x2000, // Support octal numbers (0[0-7]...)
STN_UNDERSCORE = 0x4000, // Number can contain underscore characters to increase readability (eg. 1_000_000)
STN_WHOLE = 0x8000, // Number can be terminated only by \0 character
};
#define STN_DBASES_MASK 0x1F
#define STN_SIGNS (STN_MINUS | STN_PLUS)
#define STN_BASES (STN_DEC | STN_HEX | STN_BIN | STN_OCT)
#define STN_BASES0 (STN_BASES | STN_OCT0)
#define STN_FLAGS (STN_MINUS | STN_PLUS | STN_BASES)
#define STN_UFLAGS (STN_FLAGS | STN_UNDERSCORE)
#define STN_SFLAGS (STN_FLAGS | STN_SIGNED)
#define STN_USFLAGS (STN_SFLAGS | STN_UNDERSCORE)
#define STN_DECLARE_CONVERTOR(type, suffix) \
const char *str_to_##suffix(type *num, const char *str, const char **next, const uint flags)
#define STN_SIGNED_CONVERTOR(type, suffix, usuffix) \
static inline const char *str_to_##suffix(type *num, const char *str, const char **next, const uint flags) \
{ \
return str_to_##usuffix((void *) num, str, next, flags | STN_SIGNED | STN_PLUS | STN_MINUS); \
}
STN_DECLARE_CONVERTOR(uint, uint);
STN_SIGNED_CONVERTOR(int, int, uint)
STN_DECLARE_CONVERTOR(u32, u32);
STN_SIGNED_CONVERTOR(s32, s32, u32)
STN_DECLARE_CONVERTOR(u64, u64);
STN_SIGNED_CONVERTOR(s64, s64, u64)
STN_DECLARE_CONVERTOR(uintmax_t, uintmax);
STN_SIGNED_CONVERTOR(intmax_t, intmax, uintmax)
// FIXME: For backward compatibility, will be removed soon
STN_DECLARE_CONVERTOR(uns, uns);
#endif