What is the correct way to specify directory path in the LibSetSour​ceFileOutp​utDirector​y TLC function?

I want Real-Time Workshop to generate *.c and *.h files into a custom directory rather than into the default build directory. So I specify the following commands in my custom templates TLC file for the model:

%assign pubName = LibGetMdlPubHdrBaseName()

%assign modelH  = LibCreateSourceFile("Header", "Simulink", pubName)

%<LibSetSourceFileOutputDirectory(modelH, "C:\Work\Build")>

I, however, receive an error message when trying to generate code from the model. A snippet of the error message is provided below:

 Error: File: Y:\R2008a\matlab\rtw\c\tlc\mw\ertsourcetemplate.tlc Line: 110 Column: 30

 Unable to open output file C:WorkBuild\oa_cyclic_class_header_creation.h

I would like to know the correct format for specifying the directory path.

Answer 1

[MathWorks Support Team]

The behavior observed is because the directory is interpreted as "C:WorkBuild" instead of "C:\Work\Build". To match a character that is a special metacharacter, regexp escapes that character with a '\'. So you need to use two backslashes whenever you need one backslash, for example, "C:\\Work\\Build". The first backslash escape makes sure that the second backslash is not interpreted as a special metacharater.