http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57714
--- Comment #3 from David Krauss <potswa at mac dot com> --- See section 9 of the manual: http://gcc.gnu.org/onlinedocs/gcc-4.8.1/cpp/Preprocessor-Output.html#Preprocessor-Output The output from the C preprocessor looks much like the input, except that all preprocessing directive lines have been replaced with blank lines and all comments with spaces. Long runs of blank lines are discarded. ... CPP does not insert any whitespace where there was none in the original source, except where necessary to prevent an accidental token paste.
