| /* |
| * Any copyright is dedicated to the Public Domain. |
| * http://creativecommons.org/publicdomain/zero/1.0/ |
| */ |
| |
| var gTestfile = "set-same-buffer-different-source-target-types.js"; |
| //----------------------------------------------------------------------------- |
| var BUGNUMBER = 896116; |
| var summary = |
| "When setting a typed array from an overlapping typed array of different " + |
| "element type, copy the source elements into properly-sized temporary " + |
| "memory, and properly copy them into the target without overflow (of " + |
| "either source *or* target) when finished"; |
| |
| print(BUGNUMBER + ": " + summary); |
| |
| /************** |
| * BEGIN TEST * |
| **************/ |
| |
| // smallest 2**n triggering segfaults in a pre-patch build locally, then |
| // quadrupled in case the boundary ever changes, or is different in some other |
| // memory-allocating implementation |
| var srclen = 65536; |
| |
| var ta = new Uint8Array(srclen * Float64Array.BYTES_PER_ELEMENT); |
| var ta2 = new Float64Array(ta.buffer, 0, srclen); |
| ta.set(ta2); |
| |
| // This test mostly exists to check for no crash above, but it's worth testing |
| // for no uninitialized memory (in case of buffer overflow) being copied into |
| // the array, too. |
| for (var i = 0, len = ta.length; i < len; i++) |
| assertEq(ta[i], 0, "zero-bits double should convert to zero"); |
| |
| /******************************************************************************/ |
| |
| if (typeof reportCompare === "function") |
| reportCompare(true, true); |
| |
| print("Tests complete"); |