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/* ------------------------------------------------------------------ */
/* Decimal Number Library Demonstration program */
/* ------------------------------------------------------------------ */
/* Copyright (c) IBM Corporation, 2001, 2007. All rights reserved. */
/* ----------------------------------------------------------------+- */
/* right margin -->| */
// example1.c -- convert the first two argument words to decNumber,
// add them together, and display the result
#define DECNUMDIGITS 34 // work with up to 34 digits
#include "decNumber.h" // base number library
#include <stdio.h> // for printf
int main(int argc, char *argv[]) {
decNumber a, b; // working numbers
decContext set; // working context
char string[DECNUMDIGITS+14]; // conversion buffer
decContextTestEndian(0); // warn if DECLITEND is wrong
if (argc<3) { // not enough words
printf("Please supply two numbers to add.\n");
return 1;
}
decContextDefault(&set, DEC_INIT_BASE); // initialize
set.traps=0; // no traps, thank you
set.digits=DECNUMDIGITS; // set precision
decNumberFromString(&a, argv[1], &set);
decNumberFromString(&b, argv[2], &set);
decNumberAdd(&a, &a, &b, &set); // a=a+b
decNumberToString(&a, string);
printf("%s + %s => %s\n", argv[1], argv[2], string);
return 0;
} // main
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