包装一行预处理器C ++

Question

How to wrap a line of preprocessor directive and ignore extra space?

Test Code:

    #error Line0\
    Line 1

Result:

short_test.cpp(1): error: #error directive: Line0    Line 1
      #error Line0\
       ^

While I want to keep the indent pattern in the test code, I don't want the spacing between line0 and line1 in the result.

Is that possible?

Result that I want:

short_test.cpp(1): error: #error directive: Line0Line 1
no space between Line0 and Line1

Test Code that I want

    #error Line0\
    (extra stuff?) Line 1  <-- keep the indent, ok to insert some extra stuff.

Answer 1

You can't, sorry.

The preprocessor will take precisely what you give it, including any indentation.