database/mariadb-columnstore-engine
1
0
Fork 0
mirror of https://github.com/mariadb-corporation/mariadb-columnstore-engine.git synced 2025-08-01 06:46:55 +03:00
Code Activity

MCOL-641 Replaced NULL binary constants.

Browse Source 
DataConvert::decimalToString, toString, writeIntPart, writeFractionalPart are not templates anymore.
This commit is contained in:
Roman Nozdrin
2020-03-02 14:38:40 +00:00
parent 61647c1f5b
commit 97ee1609b2
16 changed files with 200 additions and 193 deletions
Download Patch File Download Diff File Expand all files Collapse all files

49
utils/common/widedecimalutils.h
View File

@ -18,30 +18,58 @@
#ifndef WIDE_DECIMAL_UTILS_H
#define WIDE_DECIMAL_UTILS_H
namespace utils
{
using int128_t = __int128;
using uint128_t = unsigned __int128;
const uint64_t BINARYNULLVALUELOW = 0ULL;
const uint64_t BINARYNULLVALUEHIGH = 0x8000000000000000ULL;
const uint64_t BINARYEMPTYVALUELOW = 1ULL;
const uint64_t BINARYEMPTYVALUEHIGH = 0x8000000000000000ULL;
namespace utils
{
const uint64_t BINARYNULLVALUELOW = 0ULL;
const uint64_t BINARYNULLVALUEHIGH = 0x8000000000000000ULL;
const uint64_t BINARYEMPTYVALUELOW = 1ULL;
const uint64_t BINARYEMPTYVALUEHIGH = 0x8000000000000000ULL;
const uint8_t MAXLENGTH16BYTES = 42;
inline bool isWideDecimalNullValue(const int128_t val)
inline bool isWideDecimalNullValue(const int128_t& val)
{
const uint64_t* ptr = reinterpret_cast<const uint64_t*>(&val);
return (ptr[0] == BINARYNULLVALUELOW && ptr[1] == BINARYNULLVALUEHIGH);
}
inline bool isWideDecimalEmptyValue(const int128_t val)
inline bool isWideDecimalEmptyValue(const int128_t& val)
{
const uint64_t* ptr = reinterpret_cast<const uint64_t*>(&val);
return (ptr[0] == BINARYEMPTYVALUELOW && ptr[1] == BINARYEMPTYVALUEHIGH);
}
inline void int128Max(int128_t& val)
inline void setWideDecimalNullValue(int128_t& val)
{
uint64_t* ptr = reinterpret_cast<uint64_t*>(&val);
ptr[0] = BINARYNULLVALUELOW;
ptr[1] = BINARYNULLVALUEHIGH;
}
inline void setWideDecimalEMptyValue(int128_t& val)
{
uint64_t* ptr = reinterpret_cast<uint64_t*>(&val);
ptr[0] = BINARYEMPTYVALUELOW;
ptr[1] = BINARYEMPTYVALUEHIGH;
}
inline void setWideDecimalNullValue(int128_t* val)
{
uint64_t* ptr = reinterpret_cast<uint64_t*>(val);
ptr[0] = BINARYNULLVALUELOW;
ptr[1] = BINARYNULLVALUEHIGH;
}
inline void setWideDecimalEMptyValue(int128_t* val)
{
uint64_t* ptr = reinterpret_cast<uint64_t*>(val);
ptr[0] = BINARYEMPTYVALUELOW;
ptr[1] = BINARYEMPTYVALUEHIGH;
}
inline void int128Max(int128_t& val)
{
uint64_t* ptr = reinterpret_cast<uint64_t*>(&val);
ptr[0] = 0xFFFFFFFFFFFFFFFF;
@ -61,7 +89,6 @@ const uint64_t BINARYEMPTYVALUEHIGH = 0x8000000000000000ULL;
ptr[0] = 0xFFFFFFFFFFFFFFFF;
ptr[1] = 0xFFFFFFFFFFFFFFFF;
}
}
#endif // WIDE_DECIMAL_UTILS_H