Entry point

The entry point (English Entry point) referred to in programming

• The memory address from which the machine code of a function that is in a program library is executed when calling it
• The memory address from which the machine instructions of a program are executed at its start.

Technically, it is those memory address pointed to by the program counter is set by the operating system when you start a program or when calling a function.

Use

Each program has only one entry point in general. For programs that are written in the programming language C, C or Java, this is the main function.

Libraries have one or more entry points, corresponding to the number of the public functions.

Anchoring of the entry point

Information about entry points are usually stored in the program or library file in the file header. The storage is dependent on operating system.

• Programming