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Merge branch 'backtrace_support' of https://github.com/gabime/spdlog into backtrace_support

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gabime 2019-08-27 02:29:38 +03:00
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@ -37,6 +37,7 @@ Very fast, header-only/compiled, C++ logging library. [![Build Status](https://t
* Very fast (see [benchmarks](#benchmarks) below).
* Headers only, just copy and use. Or use as a compiled library.
* Feature rich formatting, using the excellent [fmt](https://github.com/fmtlib/fmt) library.
* [Backtrace](#backtrace-support) support - store debugging messages in a ring buffer for later inspection.
* Fast asynchronous mode (optional)
* [Custom](https://github.com/gabime/spdlog/wiki/3.-Custom-formatting) formatting.
* Multi/Single threaded loggers.
@ -137,15 +138,17 @@ void daily_example()
```
---
#### Cloning loggers
#### Backtrace support
```c++
// clone a logger and give it new name.
// Useful for creating subsystem loggers from some "root" logger
void clone_example()
// Loggers can store in a ring buffer all messages (including debug/trace) for later inspection.
// When needed, call dump_backtrace() to see what happened:
spdlog::enable_backtrace(32); // create ring buffer with capacity of 32 messages
for(int i = 0; i < 100; i++)
{
auto network_logger = spdlog::get("root")->clone("network");
network_logger->info("Logging network stuff..");
spdlog::debug("Backtrace message {}", i); // not logged yet..
}
// e.g. if some error happened:
spdlog::dump_backtrace(); // log them now!
```
---