Is there a C# equivalent to C++ FILE, LINE and FUNCTION macros?

Question

I have a C++ code that I'm trying to migrate to C#. Over there, on C++, i was using the following macros definition for debugging purposes.

#define CODE_LOCATION(FILE_NAME, LINE_NUM, FUNC_NAME) LINE_NUM, FILE_NAME, FUNC_NAME
#define __CODE_LOCATION__ CODE_LOCATION(__FILE__, __LINE__, __FUNCTION__)

Are there similar constructs in C#? I know there are no macros in C#, but is there any other way to get the current file, line and function values during execution?

Possible duplicate of [Do \_\_LINE\_\_ \_\_FILE\_\_ equivalents exist in C#?](http://stackoverflow.com/questions/696218/do-line-file-equivalents-exist-in-c) — Jim Fell, May 10 '16 at 18:32
@JimFell: while this question was posted 3 years ago and the duplicate is dated 7 years ago, i think it doesn't matter :) - both answers provide the solution - might worth merging the answers... — NirMH, May 11 '16 at 06:41

score 14 · Accepted Answer · answered Nov 14 '12 at 11:22

If you are using .net 4.5 you can use CallerMemberName CallerFilePath CallerLineNumber attributes to retrieve this values.

public void DoProcessing()
{
    TraceMessage("Something happened.");
}

public void TraceMessage(string message,
    [CallerMemberName] string memberName = "",
    [CallerFilePath] string sourceFilePath = "",
    [CallerLineNumber] int sourceLineNumber = 0)
{
    Trace.WriteLine("message: " + message);
    Trace.WriteLine("member name: " + memberName);
    Trace.WriteLine("source file path: " + sourceFilePath);
    Trace.WriteLine("source line number: " + sourceLineNumber);
}

If you are using older framework and visual 2012 you just need to declare them as they are in framework (same namespace) to make them work.

score 4 · Answer 2 · edited Jul 20 '22 at 01:22

4

I guess StackFrame is exactly what you're looking for.

edited Jul 20 '22 at 01:22

Pang

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answered Nov 14 '12 at 11:17

Mario

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2

it only works in Debug builds. In a production Release build, the file name and line number information doesn't exist. Also, the StackFrame object may be null in a release build, which would NullReferenceException to be thrown at runtime. – Hossein Oct 07 '14 at 02:37

score 3 · Answer 3 · answered Nov 14 '12 at 11:22

3

In .NET 4.5 there is a set of new attributes that you can use for this purpose: Caller Information

answered Nov 14 '12 at 11:22

Peter

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Is there a C# equivalent to C++ __FILE__, __LINE__ and __FUNCTION__ macros?

3 Answers3

Is there a C# equivalent to C++ FILE, LINE and FUNCTION macros?