Description

This option tells the compiler to stop the compilation process after C or C++ source files have been preprocessed and write the results to files named according to the compiler's default file-naming conventions.

On Linux systems, this option causes the preprocessor to expand your source module and direct the output to a

.i

file instead of

stdout

. Unlike the

-E

option, the output from

-P

on Linux does not include #line number directives. By default, the preprocessor creates the name of the output file using the prefix of the source file name with a

.i

extension. You can change this by using the

-o

option.