wyattblue / calc-in-c Goto Github PK

Calc-in-C is a command line calculator that can add, subtract, multiply and divide.

Features:

• Correct order of operations
• Parentheses to change ordering
• REPL with history (via readline)
• Error recovery

Example usage:

> 4 + 10
14
> 34 + 5 * 3
49
>20 * (10 + 4)
280
> 5 / 4
1

Compile and run with clang and link libedit, a library included in MacOS.

cc -ledit calc.c && ./a.out

Any decent C compiler should work. Make sure you link a library that's compatible with readline.