Je Rog questions

• How do you understand the output of re.pm when debug turned on?
• What if there's '\0' character in command line input?
• How do I wrap around open?
• An executable that doesn't require any library, even libc?
• Why does CGI.pm still use "\0" as null character, when it's treated as a normal character in Perl?
• Is this a bug of gcc preprocessor?
• Does PHP's garbage collection mechanism handle recursive reference issue?
• How does libc provide functions with two names?
• What's the design principle of c++ standard library? [closed]
• strace/ltrace outputs inconsistent info

Je Rog answers