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Dynamic Fraction Library 1.0.0
Reference-counted arbitrary precision rational number library (MIT OR Unlicense)
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Reference-counted arbitrary precision rational number library. More...
#include <stdint.h>#include <stddef.h>#include <stdbool.h>#include <limits.h>#include <math.h>#include <string.h>#include "devDeps/dynamic_int.h"#include <stdlib.h>#include <assert.h>#include <stdio.h>Go to the source code of this file.
Data Structures | |
| struct | df_frac_internal |
| Internal structure for a rational number. More... | |
Typedefs | |
| typedef struct df_frac_internal * | df_frac |
| Opaque pointer to a rational number. | |
Functions | |
| df_frac | df_from_ints (int64_t numerator, int64_t denominator) |
| Create a fraction from numerator and denominator. | |
| df_frac | df_from_di (di_int numerator, di_int denominator) |
| Create a fraction from a di_int numerator and denominator. | |
| df_frac | df_from_int (int64_t value) |
| Create a fraction from an integer. | |
| df_frac | df_from_double (double value, int64_t max_denominator) |
| Create a fraction from a double. | |
| df_frac | df_copy (df_frac f) |
| Create a copy of a fraction. | |
| df_frac | df_retain (df_frac f) |
| Increase reference count. | |
| void | df_release (df_frac *f) |
| Decrease reference count and free if zero. | |
| df_frac | df_add (df_frac a, df_frac b) |
| Add two fractions. | |
| df_frac | df_sub (df_frac a, df_frac b) |
| Subtract two fractions. | |
| df_frac | df_mul (df_frac a, df_frac b) |
| Multiply two fractions. | |
| df_frac | df_div (df_frac a, df_frac b) |
| Divide two fractions. | |
| df_frac | df_negate (df_frac f) |
| Negate a fraction. | |
| df_frac | df_abs (df_frac f) |
| Get absolute value. | |
| df_frac | df_reciprocal (df_frac f) |
| Get reciprocal (1/f) | |
| int | df_cmp (df_frac a, df_frac b) |
| Compare two fractions. | |
| bool | df_eq (df_frac a, df_frac b) |
| Test equality. | |
| bool | df_ne (df_frac a, df_frac b) |
| Test inequality. | |
| bool | df_lt (df_frac a, df_frac b) |
| Test less than. | |
| bool | df_le (df_frac a, df_frac b) |
| Test less than or equal. | |
| bool | df_gt (df_frac a, df_frac b) |
| Test greater than. | |
| bool | df_ge (df_frac a, df_frac b) |
| Test greater than or equal. | |
| bool | df_is_zero (df_frac f) |
| Test if fraction is zero. | |
| bool | df_is_one (df_frac f) |
| Test if fraction is one. | |
| bool | df_is_negative (df_frac f) |
| Test if fraction is negative. | |
| bool | df_is_positive (df_frac f) |
| Test if fraction is positive. | |
| bool | df_is_integer (df_frac f) |
| Test if fraction is an integer. | |
| double | df_to_double (df_frac f) |
| Convert to double. | |
| bool | df_to_int64 (df_frac f, int64_t *result) |
| Convert to int64_t if possible. | |
| char * | df_to_string (df_frac f) |
| Convert to string. | |
| df_frac | df_from_string (const char *str) |
| Parse fraction from string. | |
| di_int | df_numerator (df_frac f) |
| Get numerator as di_int. | |
| di_int | df_denominator (df_frac f) |
| Get denominator as di_int. | |
| df_frac | df_zero (void) |
| Create zero fraction (0/1) | |
| df_frac | df_one (void) |
| Create one fraction (1/1) | |
| df_frac | df_neg_one (void) |
| Create negative one fraction (-1/1) | |
| df_frac | df_pow (df_frac base, int64_t exponent) |
| Raise fraction to integer power. | |
| df_frac | df_floor (df_frac f) |
| Floor function - greatest integer ≤ f. | |
| df_frac | df_ceil (df_frac f) |
| Ceiling function - smallest integer ≥ f. | |
| df_frac | df_trunc (df_frac f) |
| Truncate towards zero. | |
| df_frac | df_round (df_frac f) |
| Round to nearest integer. | |
| int | df_sign (df_frac f) |
| Get sign of fraction. | |
| df_frac | df_min (df_frac a, df_frac b) |
| Minimum of two fractions. | |
| df_frac | df_max (df_frac a, df_frac b) |
| Maximum of two fractions. | |
| uint64_t | df_hash (df_frac f) |
| Hash function for fractions. | |
| bool | df_fits_int32 (df_frac f) |
| Check if fraction fits in int32_t. | |
| bool | df_fits_int64 (df_frac f) |
| Check if fraction fits in int64_t. | |
| bool | df_fits_double (df_frac f) |
| Check if fraction fits in double without precision loss. | |
| di_int | df_whole_part (df_frac f) |
| Get integer (whole) part of fraction. | |
| df_frac | df_fractional_part (df_frac f) |
| Get fractional part of fraction. | |
Reference-counted arbitrary precision rational number library.
Single header library for arbitrary precision rational numbers (fractions) with reference counting. Built on top of dynamic_int.h for arbitrary precision integer arithmetic.
Dual licensed under MIT OR Unlicense. See LICENSE file for details. Choose the license that best fits your project's needs.
Customize the library by defining these macros before including:
Definition in file dynamic_fraction.h.
Opaque pointer to a rational number.
Definition at line 101 of file dynamic_fraction.h.
1.9.8