some junk

main
Jordan Orelli 4 years ago
parent 2be7a1be45
commit 499d20c5db

@ -0,0 +1,21 @@
const std = @import("std");
const expect = std.testing.expect;
test "comptime vars" {
var x: i32 = 1;
comptime var y: i32 = 1;
x += 1;
y += 1;
expect(x == 2);
expect(y == 2);
if (y != 2) {
// this compile error never triggers. y is a comptime variable, which
// makes `y != 2` knowable at comptime (would we call this a comptime
// expression?). the "if" statement is statically evaluated. I don't
// get it.
@compileError("wrong y value");
}
}

@ -0,0 +1,12 @@
const std = @import("std");
const builtin = std.builtin;
const big = @as(f64, 1 << 40);
export fn foo_strict(x: f64) f64 {
return x + big - big;
}
export fn foo_optimized(x: f64) f64 {
@setFloatMode(.Optimized);
return x + big - big;
}

@ -4,7 +4,6 @@ const expect = std.testing.expect;
test "namespaced global variable" {
expect(foo() == 1235);
expect(foo() == 1236);
expect(boffin() == 1237);
}
fn foo() i32 {
@ -14,8 +13,3 @@ fn foo() i32 {
S.x += 1;
return S.x;
}
fn boffin() i32 {
S.x += 1;
return S.x;
}

@ -0,0 +1,15 @@
const std = @import("std");
const os = std.os;
const print = std.debug.print;
pub fn main() !void {
var buf: [256]u8 = undefined;
var fba = std.heap.FixedBufferAllocator.init(&buf);
var allocator = &fba.allocator;
const cwd = try allocator.alloc(u8, 256);
defer allocator.free(cwd);
const z = try os.getcwd(cwd);
print("{}\n", .{z});
}
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