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use vsnprintf instead of snprintf in string_printf function

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Also, revert to old location: Utils.hpp and utils.cpp
This commit is contained in:
tamasmeszaros 2020-02-03 11:18:33 +01:00
parent f09bed32b6
commit 0c4797e92e
4 changed files with 24 additions and 18 deletions
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17
src/libslic3r/libslic3r.h
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@ -230,23 +230,6 @@ static inline bool is_approx(Number value, Number test_value)
return std::fabs(double(value) - double(test_value)) < double(EPSILON);
}
template<class...Args>
std::string string_printf(const char *const _fmt, Args &&...args)
{
static const size_t INITIAL_LEN = 1024;
std::vector<char> buffer(INITIAL_LEN, '\0');
auto fmt = std::string("%s") + _fmt;
int bufflen = snprintf(buffer.data(), INITIAL_LEN - 1, fmt.c_str(), "", std::forward<Args>(args)...);
if (bufflen >= int(INITIAL_LEN)) {
buffer.resize(size_t(bufflen) + 1);
snprintf(buffer.data(), buffer.size(), fmt.c_str(), "", std::forward<Args>(args)...);
}
return std::string(buffer.begin(), buffer.begin() + bufflen);
}
} // namespace Slic3r
#endif