69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
#ifndef slic3r_LocalesUtils_hpp_
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#define slic3r_LocalesUtils_hpp_
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#include <string>
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#include <clocale>
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#include <iomanip>
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#include <cassert>
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#include <string_view>
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#ifdef __APPLE__
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#include <xlocale.h>
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#endif
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namespace Slic3r {
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// RAII wrapper that sets LC_NUMERIC to "C" on construction
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// and restores the old value on destruction.
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class CNumericLocalesSetter {
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public:
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CNumericLocalesSetter();
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~CNumericLocalesSetter();
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private:
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#ifdef _WIN32
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std::string m_orig_numeric_locale;
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#else
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locale_t m_original_locale;
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locale_t m_new_locale;
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#endif
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};
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// A function to check that current C locale uses decimal point as a separator.
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// Intended mostly for asserts.
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bool is_decimal_separator_point();
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// A substitute for std::to_string that works according to
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// C++ locales, not C locale. Meant to be used when we need
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// to be sure that decimal point is used as a separator.
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// (We use user C locales and "C" C++ locales in most of the code.)
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std::string float_to_string_decimal_point(double value, int precision = -1);
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//std::string float_to_string_decimal_point(float value, int precision = -1);
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double string_to_double_decimal_point(const std::string_view str, size_t* pos = nullptr);
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float string_to_float_decimal_point (const std::string_view str, size_t* pos = nullptr);
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// Set locales to "C".
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inline void set_c_locales()
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{
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#ifdef _WIN32
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_configthreadlocale(_ENABLE_PER_THREAD_LOCALE);
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std::setlocale(LC_ALL, "C");
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#else
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// We are leaking some memory here, because the newlocale() produced memory will never be released.
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// This is not a problem though, as there will be a maximum one worker thread created per physical thread.
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uselocale(newlocale(
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#ifdef __APPLE__
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LC_ALL_MASK
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#else // some Unix / Linux / BSD
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LC_ALL
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#endif
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, "C", nullptr));
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#endif
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}
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} // namespace Slic3r
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#endif // slic3r_LocalesUtils_hpp_
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