C-like #ifdef macros in LaTeX?

Question

The C programming language has a preprocessor, which has #ifdef #endif macros that allow to preprocess a source code file before the compilation process.

I am looking for something similar. What I actually want is being able to pass some variable straight to the compiler like so (it would compile text enabling some variable):

pdflatex mydocument.tex -DSOME_VARIABLE

Is there anything I could use? Again, all I want is conditional compiling and being able to pass some variable from the command line.

By "conditional compiling", are you referring to some condition used inside your document? — Werner, Sep 10 '15 at 18:18

score 3 · Accepted Answer · answered Sep 10 '15 at 18:37

3

Your document can look like:

...
\ifx\SOMEVARIABLE y
...
\else
...
\fi
...

and your command would be:

pdflatex '\let\SOMEVARIABLE=y \input' document

answered Sep 10 '15 at 18:37

wipet

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C-like #ifdef macros in LaTeX?

1 Answers1