homework-jianmu/include/os/osMath.h

91 lines
2.5 KiB
C

/*
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _TD_OS_MATH_H_
#define _TD_OS_MATH_H_
#ifdef __cplusplus
extern "C" {
#endif
// If the error is in a third-party library, place this header file under the third-party library header file.
// When you want to use this feature, you should find or add the same function in the following sectio
#ifndef ALLOW_FORBID_FUNC
#define qsort QSORT_FUNC_TAOS_FORBID
#endif
#define TPOW2(x) ((x) * (x))
#define TABS(x) ((x) > 0 ? (x) : -(x))
#ifndef TD_ASTRA
#define TSWAP(a, b) \
do { \
char *__tmp = (char *)alloca(sizeof(a)); \
(void)memcpy(__tmp, &(a), sizeof(a)); \
(void)memcpy(&(a), &(b), sizeof(a)); \
(void)memcpy(&(b), __tmp, sizeof(a)); \
} while (0)
#else
#define TSWAP(a, b) \
do { \
char __tmp[sizeof(a)]; \
(void)memcpy(__tmp, &(a), sizeof(a)); \
(void)memcpy(&(a), &(b), sizeof(a)); \
(void)memcpy(&(b), __tmp, sizeof(a)); \
} while (0)
#endif
#ifdef WINDOWS
#define TMAX(a, b) (((a) > (b)) ? (a) : (b))
#define TMIN(a, b) (((a) < (b)) ? (a) : (b))
#define TRANGE(aa, bb, cc) ((aa) = TMAX((aa), (bb)), (aa) = TMIN((aa), (cc)))
#else
#define TMAX(a, b) \
({ \
__typeof(a) __a = (a); \
__typeof(b) __b = (b); \
(__a > __b) ? __a : __b; \
})
#define TMIN(a, b) \
({ \
__typeof(a) __a = (a); \
__typeof(b) __b = (b); \
(__a < __b) ? __a : __b; \
})
#define TRANGE(a, b, c) \
({ \
a = TMAX(a, b); \
a = TMIN(a, c); \
})
#endif
#ifndef __COMPAR_FN_T
#define __COMPAR_FN_T
typedef int32_t (*__compar_fn_t)(const void *, const void *);
#endif
void taosSort(void *arr, int64_t sz, int64_t width, __compar_fn_t compar);
#ifdef __cplusplus
}
#endif
#endif /*_TD_OS_MATH_H_*/