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Update README.md
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README.md
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README.md
@ -76,9 +76,8 @@ async... Elapsed: 0.427072 2,341,527/sec
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async... Elapsed: 0.449768 2,223,369/sec
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```
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## Usage Example
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## Usage
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```c++
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#include "spdlog/spdlog.h"
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#include "spdlog/sinks/stdout_color_sinks.h"
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void stdout_example()
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@ -115,7 +114,9 @@ void stdout_example()
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SPDLOG_TRACE(console, "Enabled only #ifdef SPDLOG_TRACE_ON..{} ,{}", 1, 3.23);
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SPDLOG_DEBUG(console, "Enabled only #ifdef SPDLOG_DEBUG_ON.. {} ,{}", 1, 3.23);
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}
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```
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#### Basic file logger
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```c++
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#include "spdlog/sinks/basic_file_sink.h"
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void basic_logfile_example()
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{
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@ -130,13 +131,18 @@ void basic_logfile_example()
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return 1;
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}
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}
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```
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#### Rotating example
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```c++
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#include "spdlog/sinks/rotating_file_sink.h"
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void rotating_example()
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{
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// Create a file rotating logger with 5mb size max and 3 rotated files
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auto rotating_logger = spdlog::rotating_logger_mt("some_logger_name", "logs/rotating.txt", 1048576 * 5, 3);
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}
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```
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#### Daily file example
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```c++
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#include "spdlog/sinks/daily_file_sink.h"
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void daily_example()
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@ -145,6 +151,10 @@ void daily_example()
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auto daily_logger = spdlog::daily_logger_mt("daily_logger", "logs/daily.txt", 2, 30);
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}
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```
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#### Asynchronous example
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```c++
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#include "spdlog/async.h"
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void async_example()
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{
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@ -160,6 +170,10 @@ void async_example()
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}
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}
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```
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#### Multi sink
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```c++
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// create logger with 2 targets with different log levels and formats.
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// the console will show only warnings or errors, while the file will log all.
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void multi_sink_example()
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@ -176,6 +190,9 @@ void multi_sink_example()
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logger.warn("this should appear in both console and file");
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logger.info("this message should not appear in the console, only in the file");
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}
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```
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#### User defined types logging
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```c++
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// user defined types logging by implementing operator<<
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#include "spdlog/fmt/ostr.h" // must be included
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struct my_type
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@ -193,9 +210,9 @@ void user_defined_example()
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spdlog::get("console")->info("user defined type: {}", my_type{14});
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}
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//
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// custom error handler
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//
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```
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#### Custom error handler
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```c++
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void err_handler_example()
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{
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// can be set globally or per logger(logger->set_error_handler(..))
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@ -203,8 +220,9 @@ void err_handler_example()
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spdlog::get("console")->info("some invalid message to trigger an error {}{}{}{}", 3);
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}
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// syslog example (linux/osx/freebsd)
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#ifndef _WIN32
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```
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#### syslog example
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```c++
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#include "spdlog/sinks/syslog_sink.h"
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void syslog_example()
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{
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@ -212,10 +230,11 @@ void syslog_example()
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auto syslog_logger = spdlog::syslog_logger("syslog", ident, LOG_PID);
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syslog_logger->warn("This is warning that will end up in syslog.");
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}
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#endif
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// Android example
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#if defined(__ANDROID__)
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```
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#### Android example
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```c++
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#incude "spdlog/sinks/android_sink.h"
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void android_example()
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{
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@ -223,9 +242,6 @@ void android_example()
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auto android_logger = spdlog::android_logger("android", tag);
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android_logger->critical("Use \"adb shell logcat\" to view this message.");
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}
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#endif
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```
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## Documentation
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