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Diffstat (limited to 'js/src/zydis/Zycore/Format.h')
| -rw-r--r-- | js/src/zydis/Zycore/Format.h | 285 |
1 files changed, 285 insertions, 0 deletions
diff --git a/js/src/zydis/Zycore/Format.h b/js/src/zydis/Zycore/Format.h new file mode 100644 index 0000000000..b14f8fcffb --- /dev/null +++ b/js/src/zydis/Zycore/Format.h @@ -0,0 +1,285 @@ +/*************************************************************************************************** + + Zyan Core Library (Zycore-C) + + Original Author : Florian Bernd + + * 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. + +***************************************************************************************************/ + +/** + * @file + * Provides helper functions for performant number to string conversion. + */ + +#ifndef ZYCORE_FORMAT_H +#define ZYCORE_FORMAT_H + +#include "zydis/Zycore/Status.h" +#include "zydis/Zycore/String.h" +#include "zydis/Zycore/Types.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* ============================================================================================== */ +/* Exported functions */ +/* ============================================================================================== */ + +/* ---------------------------------------------------------------------------------------------- */ +/* Helpers */ +/* ---------------------------------------------------------------------------------------------- */ + +/** + * Get the absolute value of a 64 bit int. + * + * @param x The value to process. + * @return The absolute, unsigned value. + * + * This gracefully deals with the special case of `x` being `INT_MAX`. + */ +ZYAN_INLINE ZyanU64 ZyanAbsI64(ZyanI64 x) +{ + // INT_MIN special case. Can't use the value directly because GCC thinks + // it's too big for an INT64 literal, however is perfectly happy to accept + // this expression. This is also hit INT64_MIN is defined in `stdint.h`. + if (x == (-0x7fffffffffffffff - 1)) + { + return 0x8000000000000000u; + } + + return (ZyanU64)(x < 0 ? -x : x); +} + +/* ---------------------------------------------------------------------------------------------- */ +/* Insertion */ +/* ---------------------------------------------------------------------------------------------- */ + +/** + * Inserts formatted text in the destination string at the given `index`. + * + * @param string The destination string. + * @param index The insert index. + * @param format The format string. + * @param ... The format arguments. + * + * @return A zyan status code. + * + * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified + * `ZyanString` instance. + */ +ZYAN_PRINTF_ATTR(3, 4) +ZYCORE_EXPORT ZyanStatus ZyanStringInsertFormat(ZyanString* string, ZyanUSize index, + const char* format, ...); + +/* ---------------------------------------------------------------------------------------------- */ + +/** + * Formats the given unsigned ordinal `value` to its decimal text-representation and + * inserts it to the `string`. + * + * @param string A pointer to the `ZyanString` instance. + * @param index The insert index. + * @param value The value. + * @param padding_length Padds the converted value with leading zeros, if the number of chars is + * less than the `padding_length`. + * + * @return A zyan status code. + * + * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified + * `ZyanString` instance. + */ +ZYCORE_EXPORT ZyanStatus ZyanStringInsertDecU(ZyanString* string, ZyanUSize index, ZyanU64 value, + ZyanU8 padding_length); + +/** + * Formats the given signed ordinal `value` to its decimal text-representation and + * inserts it to the `string`. + * + * @param string A pointer to the `ZyanString` instance. + * @param index The insert index. + * @param value The value. + * @param padding_length Padds the converted value with leading zeros, if the number of chars is + * less than the `padding_length`. + * @param force_sign Set `ZYAN_TRUE`, to force printing of the `+` sign for positive numbers. + * @param prefix The string to use as prefix or `ZYAN_NULL`, if not needed. + * + * @return A zyan status code. + * + * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified + * `ZyanString` instance. + */ +ZYCORE_EXPORT ZyanStatus ZyanStringInsertDecS(ZyanString* string, ZyanUSize index, ZyanI64 value, + ZyanU8 padding_length, ZyanBool force_sign, const ZyanString* prefix); + +/** + * Formats the given unsigned ordinal `value` to its hexadecimal text-representation and + * inserts it to the `string`. + * + * @param string A pointer to the `ZyanString` instance. + * @param index The insert index. + * @param value The value. + * @param padding_length Padds the converted value with leading zeros, if the number of chars is + * less than the `padding_length`. + * @param uppercase Set `ZYAN_TRUE` to use uppercase letters ('A'-'F') instead of lowercase + * ones ('a'-'f'). + * + * @return A zyan status code. + * + * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified + * `ZyanString` instance. + */ +ZYCORE_EXPORT ZyanStatus ZyanStringInsertHexU(ZyanString* string, ZyanUSize index, ZyanU64 value, + ZyanU8 padding_length, ZyanBool uppercase); + +/** + * Formats the given signed ordinal `value` to its hexadecimal text-representation and + * inserts it to the `string`. + * + * @param string A pointer to the `ZyanString` instance. + * @param index The insert index. + * @param value The value. + * @param padding_length Padds the converted value with leading zeros, if the number of chars is + * less than the `padding_length`. + * @param uppercase Set `ZYAN_TRUE` to use uppercase letters ('A'-'F') instead of lowercase + * ones ('a'-'f'). + * @param force_sign Set `ZYAN_TRUE`, to force printing of the `+` sign for positive numbers. + * @param prefix The string to use as prefix or `ZYAN_NULL`, if not needed. + * + * @return A zyan status code. + * + * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified + * `ZyanString` instance. + */ +ZYCORE_EXPORT ZyanStatus ZyanStringInsertHexS(ZyanString* string, ZyanUSize index, ZyanI64 value, + ZyanU8 padding_length, ZyanBool uppercase, ZyanBool force_sign, const ZyanString* prefix); + +/* ---------------------------------------------------------------------------------------------- */ +/* Appending */ +/* ---------------------------------------------------------------------------------------------- */ + +#ifndef ZYAN_NO_LIBC + +/** + * Appends formatted text to the destination string. + * + * @param string The destination string. + * @param format The format string. + * @param ... The format arguments. + * + * @return A zyan status code. + * + * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified + * `ZyanString` instance. + */ +ZYAN_PRINTF_ATTR(2, 3) +ZYCORE_EXPORT ZYAN_REQUIRES_LIBC ZyanStatus ZyanStringAppendFormat( + ZyanString* string, const char* format, ...); + +#endif // ZYAN_NO_LIBC + +/* ---------------------------------------------------------------------------------------------- */ + +/** + * Formats the given unsigned ordinal `value` to its decimal text-representation and + * appends it to the `string`. + * + * @param string A pointer to the `ZyanString` instance. + * @param value The value. + * @param padding_length Padds the converted value with leading zeros, if the number of chars is + * less than the `padding_length`. + * + * @return A zyan status code. + * + * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified + * `ZyanString` instance. + */ +ZYCORE_EXPORT ZyanStatus ZyanStringAppendDecU(ZyanString* string, ZyanU64 value, + ZyanU8 padding_length); + +/** + * Formats the given signed ordinal `value` to its decimal text-representation and + * appends it to the `string`. + * + * @param string A pointer to the `ZyanString` instance. + * @param value The value. + * @param padding_length Padds the converted value with leading zeros, if the number of chars is + * less than the `padding_length`. + * @param force_sign Set `ZYAN_TRUE`, to force printing of the `+` sign for positive numbers. + * @param prefix The string to use as prefix or `ZYAN_NULL`, if not needed. + * + * @return A zyan status code. + * + * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified + * `ZyanString` instance. + */ +ZYCORE_EXPORT ZyanStatus ZyanStringAppendDecS(ZyanString* string, ZyanI64 value, + ZyanU8 padding_length, ZyanBool force_sign, const ZyanStringView* prefix); + +/** + * Formats the given unsigned ordinal `value` to its hexadecimal text-representation and + * appends it to the `string`. + * + * @param string A pointer to the `ZyanString` instance. + * @param value The value. + * @param padding_length Padds the converted value with leading zeros, if the number of chars is + * less than the `padding_length`. + * @param uppercase Set `ZYAN_TRUE` to use uppercase letters ('A'-'F') instead of lowercase + * ones ('a'-'f'). + * + * @return A zyan status code. + * + * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified + * `ZyanString` instance. + */ +ZYCORE_EXPORT ZyanStatus ZyanStringAppendHexU(ZyanString* string, ZyanU64 value, + ZyanU8 padding_length, ZyanBool uppercase); + +/** + * Formats the given signed ordinal `value` to its hexadecimal text-representation and + * appends it to the `string`. + * + * @param string A pointer to the `ZyanString` instance. + * @param value The value. + * @param padding_length Padds the converted value with leading zeros, if the number of chars is + * less than the `padding_length`. + * @param uppercase Set `ZYAN_TRUE` to use uppercase letters ('A'-'F') instead of lowercase + * ones ('a'-'f'). + * @param force_sign Set `ZYAN_TRUE`, to force printing of the `+` sign for positive numbers. + * @param prefix The string to use as prefix or `ZYAN_NULL`, if not needed. + * + * @return A zyan status code. + * + * This function will fail, if the `ZYAN_STRING_IS_IMMUTABLE` flag is set for the specified + * `ZyanString` instance. + */ +ZYCORE_EXPORT ZyanStatus ZyanStringAppendHexS(ZyanString* string, ZyanI64 value, + ZyanU8 padding_length, ZyanBool uppercase, ZyanBool force_sign, const ZyanStringView* prefix); + +/* ---------------------------------------------------------------------------------------------- */ + +/* ============================================================================================== */ + +#ifdef __cplusplus +} +#endif + +#endif // ZYCORE_FORMAT_H |