Wernsey questions

Wernsey answers

• Shell script to set environment variables permanently
• Not able to understand static behaviour
• C++ How to convert string to char*
• Are there C/C++ compilers that do not require standard library includes?
• malloc for struct and pointer in C
• How listeners work [closed]
• longjmp() from signal handler
• How does this C code work?
• Why/When to use (!!p) instead of (p != NULL)
• Multithreading using C on PIC18