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Diffstat (limited to 'js/src/zydis/Zycore/Comparison.h')
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1 files changed, 316 insertions, 0 deletions
diff --git a/js/src/zydis/Zycore/Comparison.h b/js/src/zydis/Zycore/Comparison.h new file mode 100644 index 0000000000..4e7826609a --- /dev/null +++ b/js/src/zydis/Zycore/Comparison.h @@ -0,0 +1,316 @@ +/*************************************************************************************************** + + 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 + * Defines prototypes of general-purpose comparison functions. + */ + +#ifndef ZYCORE_COMPARISON_H +#define ZYCORE_COMPARISON_H + +#include "zydis/Zycore/Defines.h" +#include "zydis/Zycore/Types.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* ============================================================================================== */ +/* Enums and types */ +/* ============================================================================================== */ + +/** + * Defines the `ZyanEqualityComparison` function prototype. + * + * @param left A pointer to the first element. + * @param right A pointer to the second element. + * + * @return This function should return `ZYAN_TRUE` if the `left` element equals the `right` one + * or `ZYAN_FALSE`, if not. + */ +typedef ZyanBool (*ZyanEqualityComparison)(const void* left, const void* right); + +/** + * Defines the `ZyanComparison` function prototype. + * + * @param left A pointer to the first element. + * @param right A pointer to the second element. + * + * @return This function should return values in the following range: + * `left == right -> result == 0` + * `left < right -> result < 0` + * `left > right -> result > 0` + */ +typedef ZyanI32 (*ZyanComparison)(const void* left, const void* right); + +/* ============================================================================================== */ +/* Macros */ +/* ============================================================================================== */ + +/* ---------------------------------------------------------------------------------------------- */ +/* Equality comparison functions */ +/* ---------------------------------------------------------------------------------------------- */ + +/** + * Declares a generic equality comparison function for an integral data-type. + * + * @param name The name of the function. + * @param type The name of the integral data-type. + */ +#define ZYAN_DECLARE_EQUALITY_COMPARISON(name, type) \ + ZyanBool name(const type* left, const type* right) \ + { \ + ZYAN_ASSERT(left); \ + ZYAN_ASSERT(right); \ + \ + return (*left == *right) ? ZYAN_TRUE : ZYAN_FALSE; \ + } + +/** + * Declares a generic equality comparison function that compares a single integral + * data-type field of a struct. + * + * @param name The name of the function. + * @param type The name of the integral data-type. + * @param field_name The name of the struct field. + */ +#define ZYAN_DECLARE_EQUALITY_COMPARISON_FOR_FIELD(name, type, field_name) \ + ZyanBool name(const type* left, const type* right) \ + { \ + ZYAN_ASSERT(left); \ + ZYAN_ASSERT(right); \ + \ + return (left->field_name == right->field_name) ? ZYAN_TRUE : ZYAN_FALSE; \ + } + +/* ---------------------------------------------------------------------------------------------- */ +/* Comparison functions */ +/* ---------------------------------------------------------------------------------------------- */ + +/** + * Declares a generic comparison function for an integral data-type. + * + * @param name The name of the function. + * @param type The name of the integral data-type. + */ +#define ZYAN_DECLARE_COMPARISON(name, type) \ + ZyanI32 name(const type* left, const type* right) \ + { \ + ZYAN_ASSERT(left); \ + ZYAN_ASSERT(right); \ + \ + if (*left < *right) \ + { \ + return -1; \ + } \ + if (*left > *right) \ + { \ + return 1; \ + } \ + return 0; \ + } + +/** + * Declares a generic comparison function that compares a single integral data-type field + * of a struct. + * + * @param name The name of the function. + * @param type The name of the integral data-type. + * @param field_name The name of the struct field. + */ +#define ZYAN_DECLARE_COMPARISON_FOR_FIELD(name, type, field_name) \ + ZyanI32 name(const type* left, const type* right) \ + { \ + ZYAN_ASSERT(left); \ + ZYAN_ASSERT(right); \ + \ + if (left->field_name < right->field_name) \ + { \ + return -1; \ + } \ + if (left->field_name > right->field_name) \ + { \ + return 1; \ + } \ + return 0; \ + } + + /* ---------------------------------------------------------------------------------------------- */ + +/* ============================================================================================== */ +/* Exported functions */ +/* ============================================================================================== */ + +/* ---------------------------------------------------------------------------------------------- */ +/* Default equality comparison functions */ +/* ---------------------------------------------------------------------------------------------- */ + +/** + * Defines a default equality comparison function for pointer values. + * + * @param left A pointer to the first value. + * @param right A pointer to the second value. + * + * @return Returns `ZYAN_TRUE` if the `left` value equals the `right` one or `ZYAN_FALSE`, if + * not. + */ +ZYAN_INLINE ZYAN_DECLARE_EQUALITY_COMPARISON(ZyanEqualsPointer, void* const) + +/** + * Defines a default equality comparison function for `ZyanBool` values. + * + * @param left A pointer to the first value. + * @param right A pointer to the second value. + * + * @return Returns `ZYAN_TRUE` if the `left` value equals the `right` one or `ZYAN_FALSE`, if + * not. + */ +ZYAN_INLINE ZYAN_DECLARE_EQUALITY_COMPARISON(ZyanEqualsBool, ZyanBool) + +/** + * Defines a default equality comparison function for 8-bit numeric values. + * + * @param left A pointer to the first value. + * @param right A pointer to the second value. + * + * @return Returns `ZYAN_TRUE` if the `left` value equals the `right` one or `ZYAN_FALSE`, if + * not. + */ +ZYAN_INLINE ZYAN_DECLARE_EQUALITY_COMPARISON(ZyanEqualsNumeric8, ZyanU8) + +/** + * Defines a default equality comparison function for 16-bit numeric values. + * + * @param left A pointer to the first value. + * @param right A pointer to the second value. + * + * @return Returns `ZYAN_TRUE` if the `left` value equals the `right` one or `ZYAN_FALSE`, if + * not. + */ +ZYAN_INLINE ZYAN_DECLARE_EQUALITY_COMPARISON(ZyanEqualsNumeric16, ZyanU16) + +/** + * Defines a default equality comparison function for 32-bit numeric values. + * + * @param left A pointer to the first value. + * @param right A pointer to the second value. + * + * @return Returns `ZYAN_TRUE` if the `left` value equals the `right` one or `ZYAN_FALSE`, if + * not. + */ +ZYAN_INLINE ZYAN_DECLARE_EQUALITY_COMPARISON(ZyanEqualsNumeric32, ZyanU32) + +/** + * Defines a default equality comparison function for 64-bit numeric values. + * + * @param left A pointer to the first value. + * @param right A pointer to the second value. + * + * @return Returns `ZYAN_TRUE` if the `left` value equals the `right` one or `ZYAN_FALSE`, if + * not. + */ +ZYAN_INLINE ZYAN_DECLARE_EQUALITY_COMPARISON(ZyanEqualsNumeric64, ZyanU64) + +/* ---------------------------------------------------------------------------------------------- */ +/* Default comparison functions */ +/* ---------------------------------------------------------------------------------------------- */ + +/** + * Defines a default comparison function for pointer values. + * + * @param left A pointer to the first value. + * @param right A pointer to the second value. + * + * @return Returns `0` if the `left` value equals the `right` one, `-1` if the `left` value is + * less than the `right` one, or `1` if the `left` value is greater than the `right` one. + */ +ZYAN_INLINE ZYAN_DECLARE_COMPARISON(ZyanComparePointer, void* const) + +/** + * Defines a default comparison function for `ZyanBool` values. + * + * @param left A pointer to the first value. + * @param right A pointer to the second value. + * + * @return Returns `0` if the `left` value equals the `right` one, `-1` if the `left` value is + * less than the `right` one, or `1` if the `left` value is greater than the `right` one. + */ +ZYAN_INLINE ZYAN_DECLARE_COMPARISON(ZyanCompareBool, ZyanBool) + +/** + * Defines a default comparison function for 8-bit numeric values. + * + * @param left A pointer to the first value. + * @param right A pointer to the second value. + * + * @return Returns `0` if the `left` value equals the `right` one, `-1` if the `left` value is + * less than the `right` one, or `1` if the `left` value is greater than the `right` one. + */ +ZYAN_INLINE ZYAN_DECLARE_COMPARISON(ZyanCompareNumeric8, ZyanU8) + +/** + * Defines a default comparison function for 16-bit numeric values. + * + * @param left A pointer to the first value. + * @param right A pointer to the second value. + * + * @return Returns `0` if the `left` value equals the `right` one, `-1` if the `left` value is + * less than the `right` one, or `1` if the `left` value is greater than the `right` one. + */ +ZYAN_INLINE ZYAN_DECLARE_COMPARISON(ZyanCompareNumeric16, ZyanU16) + +/** + * Defines a default comparison function for 32-bit numeric values. + * + * @param left A pointer to the first value. + * @param right A pointer to the second value. + * + * @return Returns `0` if the `left` value equals the `right` one, `-1` if the `left` value is + * less than the `right` one, or `1` if the `left` value is greater than the `right` one. + */ +ZYAN_INLINE ZYAN_DECLARE_COMPARISON(ZyanCompareNumeric32, ZyanU32) + +/** + * Defines a default comparison function for 64-bit numeric values. + * + * @param left A pointer to the first value. + * @param right A pointer to the second value. + * + * @return Returns `0` if the `left` value equals the `right` one, `-1` if the `left` value is + * less than the `right` one, or `1` if the `left` value is greater than the `right` one. + */ +ZYAN_INLINE ZYAN_DECLARE_COMPARISON(ZyanCompareNumeric64, ZyanU64) + +/* ---------------------------------------------------------------------------------------------- */ + +/* ============================================================================================== */ + +#ifdef __cplusplus +} +#endif + +#endif /* ZYCORE_COMPARISON_H */ |