exec-lastIndex-negative.js

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var BUGNUMBER = 1207922;

var summary = "negative lastIndex should be treated as 0.";

print(BUGNUMBER + ": " + summary);

var pattern = /abc/gi;

var string = 'AbcaBcabC';

var indices = [

-1,

    -Math.pow(2,32),

    -(Math.pow(2,32) + 1),

    -Math.pow(2,32) * 2,

    -Math.pow(2,40),

    -Number.MAX_VALUE,

];

for (var index of indices) {

  pattern.lastIndex = index;

  var result = pattern.exec(string);

  assertEq(result.index, 0);

  assertEq(result.length, 1);

  assertEq(result[0], "Abc");

  assertEq(pattern.lastIndex, 3);

if (typeof reportCompare === "function")

    reportCompare(true, true);