Error using "--time" without "-o"

[fondesa]

Python version: 3.7.4 pcpp version: 1.21

Description

When I try to print the time taken to to include each header without specifying an output file, it fails.

Command

pcpp first.hpp second.hpp --passthru-unfound-includes --time

Useful notes

• With -o $destination the command works as expected
• Without --time the command works as expected
• With --time the program crashes AFTER the printing the single header
• I tried also to give as input a single empty header file removing --passthru-unfound-includes thinking it could be related to the unresolved includes, but it throws the same error
• It's an option I could have misunderstood what --time does. If it simply benchmarks the time needed to write the file on the disk after it has been processed, this issue becomes irrelevant. In this case it could be useful to have a readable error of it for the user

Stacktrace:

Traceback (most recent call last):
  File "/usr/local/bin/pcpp", line 10, in <module>
    sys.exit(main())
  File "/usr/local/lib/python3.7/site-packages/pcpp/pcmd.py", line 210, in main
    p = CmdPreprocessor(sys.argv)
  File "/usr/local/lib/python3.7/site-packages/pcpp/pcmd.py", line 120, in __init__
    print("\nTime report:")
ValueError: I/O operation on closed file.

[ned14]

Fixed. Thanks for reporting this bug!