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Add CharToLower and CharToUpper into util.s (#6126)

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This commit adds replacement of `::tolower` and `::toupper`.
Added CharToLower and CharToUpper routines reduce the number of cast operators
that required for correct usage of standard C/C++ `::tolower/toupper` routines.
This commit is contained in:
Vladimir Glavnyy
2020-09-21 23:31:27 +07:00
committed by GitHub
parent 8c67b5b129
commit fb4e1c34f9
7 changed files with 27 additions and 28 deletions
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8
include/flatbuffers/util.h
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@@ -73,6 +73,14 @@ inline bool is_xdigit(char c) {
// Case-insensitive isalnum
inline bool is_alnum(char c) { return is_alpha(c) || is_digit(c); }
inline char CharToUpper(char c) {
return static_cast<char>(::toupper(static_cast<unsigned char>(c)));
}
inline char CharToLower(char c) {
return static_cast<char>(::tolower(static_cast<unsigned char>(c)));
}
// @end-locale-independent functions for ASCII character set
#ifdef FLATBUFFERS_PREFER_PRINTF