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Fixed warning on platforms where char is unsigned [#CLICKHOUSE-2]

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This commit is contained in:
Alexey Milovidov 2018-06-14 22:54:11 +03:00
parent 3d8455de00
commit 86053c754f
1 changed files with 1 additions and 1 deletions
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2
dbms/src/Common/StringUtils/StringUtils.h
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@ -109,7 +109,7 @@ inline bool isWhitespaceASCII(char c)
inline bool isControlASCII(char c)
{
return c >= 0 && c <= 31;
return static_cast<unsigned char>(c) <= 31;
}
/// Works assuming isAlphaASCII.