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/*
* Tiny float64 printing and parsing library
*
* Copyright (c) 2024 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
//#define JS_DTOA_DUMP_STATS
/* maximum number of digits for fixed and frac formats */
#define JS_DTOA_MAX_DIGITS 101
/* radix != 10 is only supported with flags = JS_DTOA_FORMAT_FREE */
/* use as many digits as necessary */
#define JS_DTOA_FORMAT_FREE (0 << 0)
/* use n_digits significant digits (1 <= n_digits <= JS_DTOA_MAX_DIGITS) */
#define JS_DTOA_FORMAT_FIXED (1 << 0)
/* force fractional format: [-]dd.dd with n_digits fractional digits.
0 <= n_digits <= JS_DTOA_MAX_DIGITS */
#define JS_DTOA_FORMAT_FRAC (2 << 0)
#define JS_DTOA_FORMAT_MASK (3 << 0)
/* select exponential notation either in fixed or free format */
#define JS_DTOA_EXP_AUTO (0 << 2)
#define JS_DTOA_EXP_ENABLED (1 << 2)
#define JS_DTOA_EXP_DISABLED (2 << 2)
#define JS_DTOA_EXP_MASK (3 << 2)
#define JS_DTOA_MINUS_ZERO (1 << 4) /* show the minus sign for -0 */
/* only accepts integers (no dot, no exponent) */
#define JS_ATOD_INT_ONLY (1 << 0)
/* accept Oo and Ob prefixes in addition to 0x prefix if radix = 0 */
#define JS_ATOD_ACCEPT_BIN_OCT (1 << 1)
/* accept O prefix as octal if radix == 0 and properly formed (Annex B) */
#define JS_ATOD_ACCEPT_LEGACY_OCTAL (1 << 2)
/* accept _ between digits as a digit separator */
#define JS_ATOD_ACCEPT_UNDERSCORES (1 << 3)
typedef struct {
uint64_t mem[37];
} JSDTOATempMem;
typedef struct {
uint64_t mem[27];
} JSATODTempMem;
/* return a maximum bound of the string length */
int js_dtoa_max_len(double d, int radix, int n_digits, int flags);
/* return the string length */
int js_dtoa(char *buf, double d, int radix, int n_digits, int flags,
JSDTOATempMem *tmp_mem);
double js_atod(const char *str, const char **pnext, int radix, int flags,
JSATODTempMem *tmp_mem);
#ifdef JS_DTOA_DUMP_STATS
void js_dtoa_dump_stats(void);
#endif
/* additional exported functions */
size_t u32toa(char *buf, uint32_t n);
size_t i32toa(char *buf, int32_t n);
size_t u64toa(char *buf, uint64_t n);
size_t i64toa(char *buf, int64_t n);
size_t u64toa_radix(char *buf, uint64_t n, unsigned int radix);
size_t i64toa_radix(char *buf, int64_t n, unsigned int radix);
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