C program in Unix environment

[James I]

How do i write a C program that produces a simple calculator with underflow and overflow protection.It should be able to perform 1 addition(+), subtraction(-), multiplication(x), or divsion(/) with normal positive or negative integers.

[Michael Schulte zur Sur]

Hi,

is there a reason you do not wish to use a calculator like dtcalc?
You could start with a loop asking for the first number then for the operation and then the second number. To test for overflow you could assign the result to a floating pint and compare that with the min/max limits of integer. Is that for programming practice?

greetings,

Michael

[James I]

How do i write a C program that produces a simple calculator with underflow and overflow protection.It should be able to perform 1 addition(+), subtraction(-), multiplication(x), or divsion(/) with normal positive or negative integers.

With respect to my question,i just need a sample of a program for programming practice

[Ravi_8]

Hi,

Look into the book "C programming" by Kernighan and Ritchie (best known as K&R), after practicing you can write a calculator program.

[Ralf Puchner]

you need a parser and you need the knowledge of writing a signal handler and exception handling.

[Eric van Dijken]

Don't expect us to do your homework.

But google is your friend: http://www.research.att.com/~bs/dc.c

Have fun. (And do read the book)