mirror of
https://github.com/fluencelabs/wasmer
synced 2024-12-13 22:25:40 +00:00
42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
/*
|
|
* Copyright 2016 The Emscripten Authors. All rights reserved.
|
|
* Emscripten is available under two separate licenses, the MIT license and the
|
|
* University of Illinois/NCSA Open Source License. Both these licenses can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <math.h>
|
|
#include <string.h>
|
|
|
|
struct vec {
|
|
double x, y, z;
|
|
vec() : x(0), y(0), z(0) {};
|
|
vec(const double a, const double b, const double c) : x(a), y(b), z(c) {};
|
|
};
|
|
|
|
struct basis {
|
|
vec a, b, c;
|
|
basis(const vec& v) {
|
|
a = v; // should not touch b!
|
|
printf("*%.2f,%.2f,%.2f*\n", b.x, b.y, b.z);
|
|
}
|
|
};
|
|
|
|
int main() {
|
|
basis B(vec(1, 0, 0));
|
|
|
|
// Part 2: similar problem with memset and memmove
|
|
int x = 1, y = 77, z = 2;
|
|
memset((void*)&x, 0, sizeof(int));
|
|
memset((void*)&z, 0, sizeof(int));
|
|
printf("*%d,%d,%d*\n", x, y, z);
|
|
memcpy((void*)&x, (void*)&z, sizeof(int));
|
|
memcpy((void*)&z, (void*)&x, sizeof(int));
|
|
printf("*%d,%d,%d*\n", x, y, z);
|
|
memmove((void*)&x, (void*)&z, sizeof(int));
|
|
memmove((void*)&z, (void*)&x, sizeof(int));
|
|
printf("*%d,%d,%d*\n", x, y, z);
|
|
return 0;
|
|
}
|