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35 lines
715 B
C++
35 lines
715 B
C++
#pragma once
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#include <Core/Defines.h>
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#include <IO/WriteBuffer.h>
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#include <common/itoa.h>
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#include <common/likely.h>
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/// 40 digits or 39 digits and a sign
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#define WRITE_HELPERS_MAX_INT_WIDTH 40U
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namespace DB
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{
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namespace detail
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{
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template <typename T>
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void NO_INLINE writeUIntTextFallback(T x, WriteBuffer & buf)
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{
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char tmp[WRITE_HELPERS_MAX_INT_WIDTH];
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int len = itoa(x, tmp) - tmp;
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buf.write(tmp, len);
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}
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}
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template <typename T>
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void writeIntText(T x, WriteBuffer & buf)
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{
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if (likely(buf.position() + WRITE_HELPERS_MAX_INT_WIDTH < buf.buffer().end()))
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buf.position() = itoa(x, buf.position());
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else
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detail::writeUIntTextFallback(x, buf);
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}
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}
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