common/string_utils: replace boost::transform with std counterpart
Note: according to cppreference it is necessary to convert char to unsigned char when using std::tolower and std::toupper, otherwise the behaviour would be undefined.
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@ -2,12 +2,12 @@
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <algorithm>
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#include <cctype>
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#include <cerrno>
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#include <boost/range/algorithm/transform.hpp>
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#include "common/common_paths.h"
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#include "common/logging/log.h"
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#include "common/string_util.h"
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@ -24,13 +24,15 @@ namespace Common {
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/// Make a string lowercase
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std::string ToLower(std::string str) {
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boost::transform(str, str.begin(), ::tolower);
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std::transform(str.begin(), str.end(), str.begin(),
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[](unsigned char c) { return std::tolower(c); });
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return str;
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}
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/// Make a string uppercase
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std::string ToUpper(std::string str) {
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boost::transform(str, str.begin(), ::toupper);
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std::transform(str.begin(), str.end(), str.begin(),
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[](unsigned char c) { return std::toupper(c); });
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return str;
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}
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