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39 lines
1,020 B
Markdown
39 lines
1,020 B
Markdown
---
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title: "Print Statements with Frame Information"
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date: 2021-06-03T13:54:39-04:00
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draft: false
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tags: []
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---
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I find it extremely useful to include frame information such as filename, line number, and current function in my print statements. Here's a couple ways that I've done that in the past.
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In C:
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```c
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#include <stdio.h>
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#define DEBUGLOG(msg) (printf("[%s:%d %s] %s\n", __FILE__, __LINE__, __PRETTY_FUNCTION__, msg))
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int main() {
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DEBUGLOG("Hello World");
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}
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```
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In Python:
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```python
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from inspect import currentframe, getframeinfo
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def debuglog(m):
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frame = currentframe()
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frame_info = getframeinfo(frame)
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last_frame = frame.f_back
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last_frame_info = getframeinfo(last_frame)
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filename = last_frame_info.filename if last_frame_info is not None else "<stdin>"
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lineno = last_frame_info.lineno if last_frame_info is not None else 1
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function_name = last_frame_info.function if last_frame_info is not None else "<module>"
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print(f"[{filename}:{lineno} {function_name}] {m}")
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```
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