diff --git a/src/crypto/common.h b/src/crypto/common.h index 96fe6e80d..f55b5c131 100644 --- a/src/crypto/common.h +++ b/src/crypto/common.h @@ -1,95 +1,95 @@ // Copyright (c) 2014 The Bitcoin Core developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #ifndef BITCOIN_CRYPTO_COMMON_H #define BITCOIN_CRYPTO_COMMON_H #if defined(HAVE_CONFIG_H) #include #endif #include #include #include static inline uint16_t ReadLE16(const uint8_t *ptr) { uint16_t x; memcpy((char *)&x, ptr, 2); return le16toh(x); } static inline uint32_t ReadLE32(const uint8_t *ptr) { uint32_t x; memcpy((char *)&x, ptr, 4); return le32toh(x); } static inline uint64_t ReadLE64(const uint8_t *ptr) { uint64_t x; memcpy((char *)&x, ptr, 8); return le64toh(x); } static inline void WriteLE16(uint8_t *ptr, uint16_t x) { uint16_t v = htole16(x); memcpy(ptr, (char *)&v, 2); } static inline void WriteLE32(uint8_t *ptr, uint32_t x) { uint32_t v = htole32(x); memcpy(ptr, (char *)&v, 4); } static inline void WriteLE64(uint8_t *ptr, uint64_t x) { uint64_t v = htole64(x); memcpy(ptr, (char *)&v, 8); } static inline uint32_t ReadBE32(const uint8_t *ptr) { uint32_t x; memcpy((char *)&x, ptr, 4); return be32toh(x); } static inline uint64_t ReadBE64(const uint8_t *ptr) { uint64_t x; memcpy((char *)&x, ptr, 8); return be64toh(x); } static inline void WriteBE32(uint8_t *ptr, uint32_t x) { uint32_t v = htobe32(x); memcpy(ptr, (char *)&v, 4); } static inline void WriteBE64(uint8_t *ptr, uint64_t x) { uint64_t v = htobe64(x); memcpy(ptr, (char *)&v, 8); } /** * Return the smallest number n such that (x >> n) == 0 (or 64 if the highest * bit in x is set. */ uint64_t static inline CountBits(uint64_t x) { -#ifdef HAVE_DECL___BUILTIN_CLZL +#if HAVE_DECL___BUILTIN_CLZL if (sizeof(unsigned long) >= sizeof(uint64_t)) { return x ? 8 * sizeof(unsigned long) - __builtin_clzl(x) : 0; } #endif -#ifdef HAVE_DECL___BUILTIN_CLZLL +#if HAVE_DECL___BUILTIN_CLZLL if (sizeof(unsigned long long) >= sizeof(uint64_t)) { return x ? 8 * sizeof(unsigned long long) - __builtin_clzll(x) : 0; } #endif int ret = 0; while (x) { x >>= 1; ++ret; } return ret; } #endif // BITCOIN_CRYPTO_COMMON_H