https://github.com/shuai132/log

a simple printf wrapper for c/c++
https://github.com/shuai132/log

log logger logging printf

Last synced: 3 months ago
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a simple printf wrapper for c/c++

• Host: GitHub
• URL: https://github.com/shuai132/log
• Owner: shuai132
• Created: 2019-08-03T06:38:47.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2025-03-07T11:31:09.000Z (11 months ago)
• Last Synced: 2025-03-21T02:41:30.833Z (10 months ago)
• Topics: log, logger, logging, printf
• Language: C++
• Size: 160 KB
• Stars: 2
• Watchers: 1
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# log

[![Build Status](https://github.com/shuai132/LOG/workflows/CI/badge.svg)](https://github.com/shuai132/LOG/actions?workflow=CI)

log for C/C++ project, by wrapper and enhance `printf`.

## Features

* One header file

* Colors on Unix

* Print filename and lines automatically

* Line feed with `\n`, or `\r\n` with `L_O_G_LINE_END_CRLF`

* Ignores `LOGD` in release mode

* Support thread safe and thread id

* Support DateTime

## Usage

[example](example.cpp)

```c++

#include "log.h"

int main() {

  LOG("log");

  LOGT("T", "msg with tag");

  LOGD("debug");

  LOGI("info");

  LOGW("warn");

  LOGE("error");

  LOGF("fatal");

  [] { LOGE("in lambda"); }();

  return 0;

}

```

Output:

```text

2023-09-14 23:32:23.197 229765 [*]: example.cpp:4 log

2023-09-14 23:32:23.198 229765 [T]: example.cpp:5 msg with tag

2023-09-14 23:32:23.198 229765 [D]: example.cpp:6 debug

2023-09-14 23:32:23.198 229765 [I]: example.cpp:7 info

2023-09-14 23:32:23.198 229765 [W]: example.cpp:8 [main] warn

2023-09-14 23:32:23.198 229765 [E]: example.cpp:9 [main] error

2023-09-14 23:32:23.198 229765 [!]: example.cpp:10 [main] fatal

2023-09-14 23:32:23.198 229765 [V]: example.cpp:11 verbose

2023-09-14 23:32:23.198 229765 [E]: example.cpp:12 [operator()] in lambda

```