https://github.com/cgkantidis/cpp_dbg_out

A dbg_out variadic macro that prints the function, file, line and the rest of the arguments from where it's called, to the standard output.
https://github.com/cgkantidis/cpp_dbg_out

cpp debug variadic-function variadic-macro

Last synced: about 2 months ago
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A dbg_out variadic macro that prints the function, file, line and the rest of the arguments from where it's called, to the standard output.

• Host: GitHub
• URL: https://github.com/cgkantidis/cpp_dbg_out
• Owner: cgkantidis
• Created: 2022-11-06T21:57:35.000Z (about 2 years ago)
• Default Branch: main
• Last Pushed: 2022-12-01T00:24:44.000Z (about 2 years ago)
• Last Synced: 2024-11-25T16:14:26.340Z (about 2 months ago)
• Topics: cpp, debug, variadic-function, variadic-macro
• Language: CMake
• Homepage:
• Size: 18.6 KB
• Stars: 2
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
## cpp_dbg_out

A `dbg_out` [variadic macro](https://gcc.gnu.org/onlinedocs/cpp/Variadic-Macros.html) that prints the function, file, line and the rest of the arguments from where it's called, to the standard output.

The developer can enable the debug messages by defining `ENABLE_DBG_OUT`, and change the call to a no-op by not defining `ENABLE_DBG_OUT`.

It is thread-safe to call this macro from multiple threads.

It works both in gcc and clang, and requires C++17.

## Compile and run

```bash

cmake -S . -B build

cmake --build build

./build/main

```

So this call inside main(), in the main.cpp file at line 29

```cpp

dbg_out("Hello", "World", 3);

```

Will print:

```

main main.cpp:29 Hello World 3

```

## Disable the `dbg_out`

To disable the printing of the debug messages, just comment out the

```cpp

#define ENABLE_DBG_OUT

```

The definition of `ENABLE_DBG_OUT` can also be done from the terminal, by adding the `-DENABLE_DBG_OUT` compilation option.