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MCOL-641 Basic extent elimination support for Decimal38.

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This commit is contained in:
Gagan Goel
2020-02-01 22:16:58 -05:00
committed by Roman Nozdrin
parent 84f9821720
commit 55afcd8890
33 changed files with 1318 additions and 325 deletions
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30
utils/dataconvert/dataconvert.cpp
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@ -1163,22 +1163,12 @@ bool stringToTimestampStruct(const string& data, TimeStamp& timeStamp, const str
}
// WIP MCOL-641
#include <stdio.h>
struct uint128_pod
{
uint64_t lo;
uint64_t hi;
};
// WIP MCOL-641
// Check for overflows with buflen
template<typename T>
void DataConvert::toString(T* dec, char *p, size_t buflen)
{
uint64_t div = 10000000000000000000ULL;
size_t div_log = 19;
// template this
uint128_t high = *dec;
uint128_t low;
@ -1192,23 +1182,27 @@ void DataConvert::toString(T* dec, char *p, size_t buflen)
// use typeof
// Or a templated structure
// Use uint64* to access parts of uint128 and remove pods
uint128_pod *high_pod = reinterpret_cast<uint128_pod*>(&high);
uint128_pod *mid_pod = reinterpret_cast<uint128_pod*>(&mid);
uint128_pod *low_pod = reinterpret_cast<uint128_pod*>(&low);
Int128Pod_t *high_pod = reinterpret_cast<Int128Pod_t*>(&high);
Int128Pod_t *mid_pod = reinterpret_cast<Int128Pod_t*>(&mid);
Int128Pod_t *low_pod = reinterpret_cast<Int128Pod_t*>(&low);
char* original_p = p;
int printed_chars = 0;
// WIP replace snprintf with streams
if (high_pod->lo != 0) {
printed_chars = snprintf(p, div_log+1, "%lu", high_pod->lo);
printed_chars = sprintf(p, "%lu", high_pod->lo);
p += printed_chars;
printed_chars = sprintf(p, "%019lu", mid_pod->lo);
p += printed_chars;
printed_chars = snprintf(p, div_log+1, "%019lu", mid_pod->lo);
p += printed_chars;
sprintf(p, "%019lu", low_pod->lo);
} else if (mid_pod->lo != 0) {
printed_chars = snprintf(p, div_log+1, "%lu", mid_pod->lo);
printed_chars = sprintf(p, "%lu", mid_pod->lo);
p += printed_chars;
sprintf(p, "%019lu", low_pod->lo);
}
else {
sprintf(p, "%lu", low_pod->lo);
}
snprintf(p, div_log+1, "%019lu", low_pod->lo);
if (buflen <= p-original_p)
std::cout << "DataConvert::toString char buffer overflow" << std::endl;
}