mirror of
https://gitee.com/mirrors_PX4/PX4-Autopilot.git
synced 2026-07-08 09:20:36 +08:00
Pavel Kirienko
64 lines
2.2 KiB
C++
64 lines
2.2 KiB
C++
/*
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* Copyright (C) 2014 Pavel Kirienko <pavel.kirienko@gmail.com>
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*/
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#ifndef UAVCAN_HELPERS_OSTREAM_HPP_INCLUDED
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#define UAVCAN_HELPERS_OSTREAM_HPP_INCLUDED
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#include <uavcan/util/templates.hpp>
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#include <cstdio>
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namespace uavcan
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{
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/**
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* Compact replacement for std::ostream for use on embedded systems.
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* Can be used for printing UAVCAN messages to stdout.
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*
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* Relevant discussion: https://groups.google.com/forum/#!topic/px4users/6c1CLNutN90
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*
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* Usage:
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* OStream::instance() << "Hello world!" << OStream::endl;
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*/
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class UAVCAN_EXPORT OStream : uavcan::Noncopyable
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{
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OStream() { }
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public:
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static OStream& instance()
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{
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static OStream s;
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return s;
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}
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static OStream& endl(OStream& stream)
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{
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std::printf("\n");
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return stream;
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}
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};
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inline OStream& operator<<(OStream& s, long long x) { std::printf("%lld", x); return s; }
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inline OStream& operator<<(OStream& s, unsigned long long x) { std::printf("%llud", x); return s; }
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inline OStream& operator<<(OStream& s, long x) { std::printf("%ld", x); return s; }
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inline OStream& operator<<(OStream& s, unsigned long x) { std::printf("%lu", x); return s; }
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inline OStream& operator<<(OStream& s, int x) { std::printf("%d", x); return s; }
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inline OStream& operator<<(OStream& s, unsigned int x) { std::printf("%u", x); return s; }
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inline OStream& operator<<(OStream& s, short x) { return operator<<(s, static_cast<int>(x)); }
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inline OStream& operator<<(OStream& s, unsigned short x) { return operator<<(s, static_cast<unsigned>(x)); }
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inline OStream& operator<<(OStream& s, long double x) { std::printf("%Lg", x); return s; }
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inline OStream& operator<<(OStream& s, double x) { std::printf("%g", x); return s; }
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inline OStream& operator<<(OStream& s, float x) { return operator<<(s, static_cast<double>(x)); }
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inline OStream& operator<<(OStream& s, char x) { std::printf("%c", x); return s; }
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inline OStream& operator<<(OStream& s, const char* x) { std::printf("%s", x); return s; }
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inline OStream& operator<<(OStream& s, OStream&(*manip)(OStream&)) { return manip(s); }
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}
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#endif // UAVCAN_HELPERS_OSTREAM_HPP_INCLUDED
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