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- /*
- * Copyright 2014-2022 The GmSSL Project. All Rights Reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the License); you may
- * not use this file except in compliance with the License.
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- */
- #ifndef GMSSL_ENDIAN_H
- #define GMSSL_ENDIAN_H
- /* Big Endian R/W */
- #define GETU16(p) \
- ((uint16_t)(p)[0] << 8 | \
- (uint16_t)(p)[1])
- #define GETU32(p) \
- ((uint32_t)(p)[0] << 24 | \
- (uint32_t)(p)[1] << 16 | \
- (uint32_t)(p)[2] << 8 | \
- (uint32_t)(p)[3])
- #define GETU64(p) \
- ((uint64_t)(p)[0] << 56 | \
- (uint64_t)(p)[1] << 48 | \
- (uint64_t)(p)[2] << 40 | \
- (uint64_t)(p)[3] << 32 | \
- (uint64_t)(p)[4] << 24 | \
- (uint64_t)(p)[5] << 16 | \
- (uint64_t)(p)[6] << 8 | \
- (uint64_t)(p)[7])
- // 注意:PUTU32(buf, val++) 会出错!
- #define PUTU16(p,V) \
- ((p)[0] = (uint8_t)((V) >> 8), \
- (p)[1] = (uint8_t)(V))
- #define PUTU32(p,V) \
- ((p)[0] = (uint8_t)((V) >> 24), \
- (p)[1] = (uint8_t)((V) >> 16), \
- (p)[2] = (uint8_t)((V) >> 8), \
- (p)[3] = (uint8_t)(V))
- #define PUTU64(p,V) \
- ((p)[0] = (uint8_t)((V) >> 56), \
- (p)[1] = (uint8_t)((V) >> 48), \
- (p)[2] = (uint8_t)((V) >> 40), \
- (p)[3] = (uint8_t)((V) >> 32), \
- (p)[4] = (uint8_t)((V) >> 24), \
- (p)[5] = (uint8_t)((V) >> 16), \
- (p)[6] = (uint8_t)((V) >> 8), \
- (p)[7] = (uint8_t)(V))
- /* Little Endian R/W */
- #define GETU16_LE(p) (*(const uint16_t *)(p))
- #define GETU32_LE(p) (*(const uint32_t *)(p))
- #define GETU64_LE(p) (*(const uint64_t *)(p))
- #define PUTU16_LE(p,V) *(uint16_t *)(p) = (V)
- #define PUTU32_LE(p,V) *(uint32_t *)(p) = (V)
- #define PUTU64_LE(p,V) *(uint64_t *)(p) = (V)
- /* Rotate */
- #define ROL32(a,n) (((a)<<(n))|(((a)&0xffffffff)>>(32-(n))))
- #define ROL64(a,n) (((a)<<(n))|((a)>>(64-(n))))
- #define ROR32(a,n) ROL32((a),32-(n))
- #define ROR64(a,n) ROL64(a,64-n)
- #endif
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