Code is not ANSI C compatible

[matthiasbock]

...so it doesn't compile with Borland Turbo C++ Version 1.01 on MS-DOS 6.22, where it's supposed to run.

[matthiasbock]

Options:

1. compile a DOS-compatible EXE under Linux
2. make code ANSI-C conform

[matthiasbock]

1a) use MinGW-GCC to compile natively on Linux (do these EXEs work with MS-DOS?) 1b) run Borland Turbo C++ in a virtualized environment, like DOSBox or DOSemu

2) compile for ANSI C syntax using GCC:

gcc -ansi -pedantic-errors ...

[matthiasbock]

Nikolaus.c is now C-89 compatible. Main problems were:

• variable declaration in code body: must be at the beginning of a code section
• getline was not available
• struct definition with {} brackets is not allowed: assign each struct variable individually