#include <stdio.h> #include "some_c_code.h" // Some test functions follow to proof that C code can be called from D main() void relatedCode(size_t aNumber) { printf("Hallo! This is some output from C code! (%d)\n", aNumber); } uint64_t multiplyU64byU32(uint64_t*a, uint32_t*b) { return *a * *b; } uint64_t multiplyAndAdd(uint32_t*arr, size_t arrlen, uint32_t mult) { uint64_t acc = 0; for (int i = 0; i < arrlen; i++) { acc += arr[i]*mult; } return acc; } uint64_t fac(uint64_t n) { if (n > 1) return n * fac(n-1); else return 1; }