initial commit

Zahlenraten.zig

@@ -0,0 +1,44 @@
+const std = @import("std");
+
+
+pub fn main() !void {
+    const rand = std.crypto.random;
+    const reader = std.io.getStdIn().reader();
+    const writer = std.io.getStdOut().writer();
+
+    try writer.print("Welcome to my number guessing game! \n", .{});
+
+    try writer.print("Enter an upper limit\n", .{});
+    const upperLimit = oneIntInput(writer, reader);
+    try writer.print("Your upper limit is {d}! \n", .{upperLimit});
+
+    for (0..10) |i| {
+        const randomInt = rand.intRangeLessThan(u16, 0, 3);
+        try writer.print("Random number {d}: {d} \n\n", .{i, randomInt});
+    }
+
+}
+
+pub fn oneIntInput(writer: anytype, reader: anytype) !i64 {
+    var buffer: [256]u8 = undefined;
+
+    while (true) {
+        try writer.print("> ", .{});
+        const amountInputBytes = try reader.read(&buffer);
+        const input_slice: []u8 = buffer[0..(amountInputBytes - 1)];
+
+        const result: i64 = std.fmt.parseInt(i64, input_slice, 10) catch |err| {
+            switch (err) {
+                error.InvalidCharacter => {
+                    try writer.print("Error: Invalid character, try again! \n", .{});
+                },
+                error.Overflow => {
+                    try writer.print("Error: Too big for an i64, try again! \n", .{});
+                },
+            }
+            try writer.print("\n", .{});
+            continue;
+        };
+        return result;
+    }
+}