Add first version of CMath
This commit is contained in:
commit
d1eac01605
GPG Key ID:
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.DS_Store
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xcuserdata/
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.swiftpm
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.netrc
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@ -0,0 +1,7 @@
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<?xml version="1.0" encoding="UTF-8"?>
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@ -0,0 +1,4 @@
|
||||||
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# Bachelorproef Proof-of-Concept 3 | CMath
|
||||||
|
Deze directory bevat de C-library die gebruikt wordt om de 3e Proof-of-Concept (Swift <> C interoperability) mogelijk te maken.
|
||||||
|
|
||||||
|
Concreet is dit een simpele library die basis wiskunde bewerkingen kan uitvoeren, vergelijkbaar met wat men zou verwachten bij een basis calculator.
|
||||||
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@ -0,0 +1,13 @@
|
||||||
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//
|
||||||
|
// add_nums.h
|
||||||
|
// CMath
|
||||||
|
//
|
||||||
|
// Created by TheAlgorithm476 on 28/03/2025.
|
||||||
|
//
|
||||||
|
|
||||||
|
#ifndef __ADD_NUMS_H
|
||||||
|
#define __ADD_NUMS_H
|
||||||
|
|
||||||
|
double add_nums(double a, double b);
|
||||||
|
|
||||||
|
#endif // __ADD_NUMS_H
|
||||||
|
|
@ -0,0 +1,75 @@
|
||||||
|
//
|
||||||
|
// cmath.c
|
||||||
|
// CMath
|
||||||
|
//
|
||||||
|
// Created by TheAlgorithm476 on 28/03/2025.
|
||||||
|
//
|
||||||
|
|
||||||
|
#include <stdint.h>
|
||||||
|
#include "add_nums.h"
|
||||||
|
#include "sub_nums.h"
|
||||||
|
#include "mul_nums.h"
|
||||||
|
#include "div_nums.h"
|
||||||
|
#include "spc_nums.h"
|
||||||
|
|
||||||
|
double add_nums(double a, double b) {
|
||||||
|
return a + b;
|
||||||
|
}
|
||||||
|
|
||||||
|
double sub_nums(double a, double b) {
|
||||||
|
return b - a;
|
||||||
|
}
|
||||||
|
|
||||||
|
double mul_nums(double a, double b) {
|
||||||
|
return a * b;
|
||||||
|
}
|
||||||
|
|
||||||
|
double div_nums(double a, double b) {
|
||||||
|
if (a == 0) return 0; // Cannot divide by 0
|
||||||
|
|
||||||
|
return b / a;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Uses "poor man's pow" to determine the power of a fractional exponent.
|
||||||
|
double pow(double x, double exp) {
|
||||||
|
if (x == 0) return 0;
|
||||||
|
if (exp == 0) return 1;
|
||||||
|
if (exp < 0) return 1 / pow(x, -exp);
|
||||||
|
|
||||||
|
int full_part = (int) exp;
|
||||||
|
double frac_part = exp - full_part;
|
||||||
|
double result = 1.0;
|
||||||
|
|
||||||
|
// int pow
|
||||||
|
for (size_t i = 0; i < full_part; i++) {
|
||||||
|
result *= x;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Approximate fraction
|
||||||
|
if (frac_part != 0) {
|
||||||
|
double temp = 1.0;
|
||||||
|
double term = 1.0;
|
||||||
|
|
||||||
|
for (size_t i = 1; i < POOR_MANS_POW_GUESSES; i++) {
|
||||||
|
term *= (frac_part * (x - 1)) / i;
|
||||||
|
temp += term;
|
||||||
|
}
|
||||||
|
|
||||||
|
result *= temp;
|
||||||
|
}
|
||||||
|
|
||||||
|
return result;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Uses Newton's Square Root to get a decent guess of the sqrt.
|
||||||
|
double sqrt(double x) {
|
||||||
|
if (x <= 0) return 0; // Negative roots are way out of scope for this thesis.
|
||||||
|
|
||||||
|
double guess = x / 2.0;
|
||||||
|
|
||||||
|
for (size_t i = 0; i < NEWTONIAN_DIV_GUESSES; i++) {
|
||||||
|
guess = (guess + x / guess) / 2.0;
|
||||||
|
}
|
||||||
|
|
||||||
|
return guess;
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,13 @@
|
||||||
|
//
|
||||||
|
// div_nums.h
|
||||||
|
// CMath
|
||||||
|
//
|
||||||
|
// Created by TheAlgorithm476 on 28/03/2025.
|
||||||
|
//
|
||||||
|
|
||||||
|
#ifndef __DIV_NUMS_H
|
||||||
|
#define __DIV_NUMS_H
|
||||||
|
|
||||||
|
double div_nums(double a, double b);
|
||||||
|
|
||||||
|
#endif // __DIV_NUMS_H
|
||||||
|
|
@ -0,0 +1,13 @@
|
||||||
|
//
|
||||||
|
// mul_nums.h
|
||||||
|
// CMath
|
||||||
|
//
|
||||||
|
// Created by TheAlgorithm476 on 28/03/2025.
|
||||||
|
//
|
||||||
|
|
||||||
|
#ifndef __MUL_NUMS_H
|
||||||
|
#define __MUL_NUMS_H
|
||||||
|
|
||||||
|
double mul_nums(double a, double b);
|
||||||
|
|
||||||
|
#endif // __MUL_NUMS_H
|
||||||
|
|
@ -0,0 +1,17 @@
|
||||||
|
//
|
||||||
|
// spc_nums.h
|
||||||
|
// CMath
|
||||||
|
//
|
||||||
|
// Created by TheAlgorithm476 on 28/03/2025.
|
||||||
|
//
|
||||||
|
|
||||||
|
#ifndef __SPC_NUMS_H
|
||||||
|
#define __SPC_NUMS_H
|
||||||
|
|
||||||
|
#define POOR_MANS_POW_GUESSES 12
|
||||||
|
#define NEWTONIAN_DIV_GUESSES 12
|
||||||
|
|
||||||
|
double pow(double x, double exp);
|
||||||
|
double sqrt(double x);
|
||||||
|
|
||||||
|
#endif // __SPC_NUMS_H
|
||||||
|
|
@ -0,0 +1,13 @@
|
||||||
|
//
|
||||||
|
// sub_nums.h
|
||||||
|
// CMath
|
||||||
|
//
|
||||||
|
// Created by TheAlgorithm476 on 28/03/2025.
|
||||||
|
//
|
||||||
|
|
||||||
|
#ifndef __SUB_NUMS_H
|
||||||
|
#define __SUB_NUMS_H
|
||||||
|
|
||||||
|
double sub_nums(double a, double b);
|
||||||
|
|
||||||
|
#endif // __SUB_NUMS_H
|
||||||
|
|
@ -0,0 +1,17 @@
|
||||||
|
//
|
||||||
|
// CMath-Bridging-Header.h
|
||||||
|
// Interop-BridgingHeader
|
||||||
|
//
|
||||||
|
// Created by TheAlgorithm476 on 09/04/2025.
|
||||||
|
//
|
||||||
|
|
||||||
|
#ifndef __CMATH_BRIDGING_HEADER
|
||||||
|
#define __CMATH_BRIDGING_HEADER
|
||||||
|
|
||||||
|
#include "add_nums.h"
|
||||||
|
#include "sub_nums.h"
|
||||||
|
#include "mul_nums.h"
|
||||||
|
#include "div_nums.h"
|
||||||
|
#include "spc_nums.h"
|
||||||
|
|
||||||
|
#endif // __CMATH_BRIDGING_HEADER
|
||||||
|
|
@ -0,0 +1,4 @@
|
||||||
|
// The Swift Programming Language
|
||||||
|
// https://docs.swift.org/swift-book
|
||||||
|
|
||||||
|
print("Hello, world!")
|
||||||
Loading…
Reference in New Issue