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content/blog/printdebug.md

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+---
+title: "Print Statements with Frame Information"
+date: 2021-06-03T13:54:39-04:00
+draft: false
+tags: []
+---
+
+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.
+
+In C:
+
+```c
+#include <stdio.h>
+
+#define DEBUGLOG(msg) (printf("[%s:%d %s] %s\n", __FILE__, __LINE__, __PRETTY_FUNCTION__, msg))
+
+int main() {
+    DEBUGLOG("Hello World");
+}
+```
+
+
+
+In Python:
+
+```python
+from inspect import currentframe, getframeinfo
+
+def debuglog(m):
+    frame = currentframe()
+    frame_info = getframeinfo(frame)
+    last_frame = frame.f_back
+    last_frame_info = getframeinfo(last_frame)
+    filename = last_frame_info.filename if last_frame_info is not None else "<stdin>"
+    lineno = last_frame_info.lineno if last_frame_info is not None else 1
+    function_name = last_frame_info.function if last_frame_info is not None else "<module>"
+    print(f"[{filename}:{lineno} {function_name}] {m}")
+```
+