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Implemented long division algorithm and added printf for big integers

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Marco Cetica
2025-11-17 10:54:23 +01:00
parent fd07e27337
commit 3ff89c8d35
4 changed files with 287 additions and 483 deletions
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40
usage.c
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@@ -27,6 +27,7 @@ static int map_usage();
static int bigint_usage();
static vector_order_t cmp_int_asc(const void *x, const void *y);
static vector_order_t cmp_int_desc(const void *x, const void *y);
int main(void) {
int st;
@@ -333,9 +334,7 @@ int bigint_usage() {
bigint_t *sum = sum_res.value.number;
// Print result
printf("123456789 + 987654321 (should be 1,111,111,110) = ");
bigint_print(sum);
printf("\n");
bigint_printf("123456789 + 987654321 (should be 1,111,111,110) = %B\n", sum);
// Subtract two big integers
bigint_result_t diff_res = bigint_sub(x, y);
@@ -348,9 +347,7 @@ int bigint_usage() {
bigint_t *diff = diff_res.value.number;
// Print result
printf("123456789 - 987654321 (should be -864,197,532) = ");
bigint_print(diff);
printf("\n");
bigint_printf("123456789 - 987654321 (should be -864,197,532) = %B\n", diff);
// Multiply two big integers
bigint_result_t prod_res = bigint_prod(x, y);
@@ -363,13 +360,12 @@ int bigint_usage() {
bigint_t *prod = prod_res.value.number;
// Print result
printf("123456789 * 987654321 (should be 121,932,631,112,635,269) = ");
bigint_print(prod);
printf("\n");
bigint_printf("123456789 * 987654321 (should be 121,932,631,112,635,269) = %B\n", prod);
bigint_t *a = bigint_from_string("457349545684946456456456567567").value.number;
bigint_t *b = bigint_from_string("43569678678678678678678432").value.number;
// Divide two big integers
bigint_t *a = bigint_from_string("4573495456849").value.number;
bigint_t *b = bigint_from_string("4356987654321").value.number;
bigint_result_t div_res = bigint_divmod(a, b);
if (div_res.status != BIGINT_OK) {
printf("Error while dividing two big numbers: %s\n", div_res.message);
@@ -377,22 +373,20 @@ int bigint_usage() {
return 1;
}
bigint_t *q = div_res.value.division.quotient;
bigint_t *r = div_res.value.division.remainder;
bigint_t *quotient = div_res.value.division.quotient;
bigint_t *remainder = div_res.value.division.remainder;
// Print result
printf("a / b = ");
bigint_print(q);
printf("\n");
bigint_print(r);
printf("\n");
bigint_destroy(a); bigint_destroy(b);
bigint_destroy(q); bigint_destroy(r);
bigint_printf(
"457349545684946456456456567567 / 43569678678678678678678432 (should be 10,496) = %B\
\n457349545684946456456456567567 %% 43569678678678678678678432 (should be 42,198,273,535,045,045,047,745,295) = %B\n",
quotient, remainder);
// Destroy big numbers
bigint_destroy(x); bigint_destroy(y);
bigint_destroy(sum); bigint_destroy(diff); bigint_destroy(prod);
bigint_destroy(a); bigint_destroy(b);
bigint_destroy(sum); bigint_destroy(diff);
bigint_destroy(prod); bigint_destroy(quotient); bigint_destroy(remainder);
return 0;
}