Print null terminated string in array properly | Zig Programming Language | Page 1

Hello there,

When I read some string to buffer like this:

const std = @import("std");

pub fn main() !void {
    var buff: [100]u8 = undefined;       
    const val = "Hello, world!";         
    std.mem.copyForwards(u8, &buff, val);
    std.debug.print("{s}\n", .{buff});   
}

I get ugly output showed on screen. If I do the same in C I get normal output:

#include <stdio.h>
#include <memory.h>

int main() {
  char s[100];
  const char* s2 = "Hello, world!";

  memcpy(s, s2, 14);

  printf("%s\n", s);
  return 0;
}

How to make it print properly in zig, assuming that I don't know how much data was read into the buffer?

#Print null terminated string in array properly