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-rw-r--r--src/openvic-dataloader/detail/NullBuff.hpp30
1 files changed, 30 insertions, 0 deletions
diff --git a/src/openvic-dataloader/detail/NullBuff.hpp b/src/openvic-dataloader/detail/NullBuff.hpp
new file mode 100644
index 0000000..baf9e1b
--- /dev/null
+++ b/src/openvic-dataloader/detail/NullBuff.hpp
@@ -0,0 +1,30 @@
+#pragma once
+
+#include <ostream>
+
+namespace ovdl::detail {
+ template<class cT, class traits = std::char_traits<cT>>
+ class basic_nullbuf : public std::basic_streambuf<cT, traits> {
+ typename traits::int_type overflow(typename traits::int_type c) {
+ return traits::not_eof(c); // indicate success
+ }
+ };
+
+ template<class cT, class traits = std::char_traits<cT>>
+ class basic_onullstream : public std::basic_ostream<cT, traits> {
+ public:
+ basic_onullstream() : std::basic_ios<cT, traits>(&m_sbuf),
+ std::basic_ostream<cT, traits>(&m_sbuf) {
+ std::basic_ios<cT, traits>::init(&m_sbuf);
+ }
+
+ private:
+ basic_nullbuf<cT, traits> m_sbuf;
+ };
+
+ typedef basic_onullstream<char> onullstream;
+ typedef basic_onullstream<wchar_t> wonullstream;
+
+ inline onullstream cnull;
+ inline onullstream wcnull;
+} \ No newline at end of file