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Added binary logging example

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gabime 2018-09-25 01:24:17 +03:00
parent a4bae6aba9
commit 8649fb5118
1 changed files with 28 additions and 2 deletions
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README.md
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@ -32,7 +32,6 @@ Very fast, header only, C++ logging library. [![Build Status](https://travis-ci.
* Feature rich using the excellent [fmt](https://github.com/fmtlib/fmt) library.
* Fast asynchronous mode (optional)
* [Custom](https://github.com/gabime/spdlog/wiki/3.-Custom-formatting) formatting.
* Conditional Logging
* Multi/Single threaded loggers.
* Various log targets:
* Rotating log files.
@ -42,7 +41,7 @@ Very fast, header only, C++ logging library. [![Build Status](https://travis-ci.
* Windows debugger (```OutputDebugString(..)```)
* Easily extendable with custom log targets (just implement a single function in the [sink](include/spdlog/sinks/sink.h) interface).
* Severity based filtering - threshold levels can be modified in runtime as well as in compile time.
* Binary to hex conversion and logging.
## Benchmarks
@ -180,6 +179,33 @@ spdlog::flush_every(std::chrono::seconds(3));
```
---
#### Binary logging
```c++
// log binary data as hex.
// many types of std::container<char> types can be used.
// ranges are supported too.
// format flags:
// {:X} - print in uppercase.
// {:s} - don't separate each byte with space.
// {:p} - don't print the position on each line start.
// {:n} - don't split the output to lines.
#include "spdlog/fmt/bin_to_hex.h"
void binary_example()
{
auto console = spdlog::get("console");
std::array<char, 80> buf;
console->info("Binary example: {}", spdlog::to_hex(buf));
console->info("Another binary example:{:n}", spdlog::to_hex(std::begin(buf), std::begin(buf) + 10));
// more examples:
// logger->info("uppercase: {:X}", spdlog::to_hex(buf));
// logger->info("uppercase, no delimiters: {:Xs}", spdlog::to_hex(buf));
// logger->info("uppercase, no delimiters, no position info: {:Xsp}", spdlog::to_hex(buf));
}
```
---
#### Logger with multi sinks - each with different format and log level