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// Copyright 2018 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 <emscripten.h>
EM_JS_DEPS(deps, "$stackSave,$stackAlloc");
int main() {
EM_ASM({
var size = 128;
var before;
before = stackSave();
var x = stackAlloc(size);
var y = stackAlloc(size);
var direction = y > x ? 1 : -1;
assert(x % 16 == 0, "allocation must have 16-byte alignment");
assert(x == Math.min(before, before + direction*size), "allocation must return the start of the range allocated");
var z = stackAlloc(size);
assert(x != y && y != z && x != z, "allocations must be unique");
assert((y - x)*(z - y) > 0, "allocations must be in the same direction");
// no overlaps
function notInRange(value, begin, end) {
function errormsg() { return value + " must not be in the range (" + begin + ", " + end + "]"; }
if (begin < end) assert(!(value >= begin && value < end), errormsg());
else assert(!(value <= begin && value > end), errormsg());
}
notInRange(x, y, y + direction*size);
notInRange(x, z, z + direction*size);
notInRange(y, x, x + direction*size);
notInRange(y, z, z + direction*size);
notInRange(z, x, x + direction*size);
notInRange(z, y, y + direction*size);
out('ok.');
});
}
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