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jscript: Correctly handle NaN in to_integer.

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This commit is contained in:
Jacek Caban 2009-12-04 02:56:25 +01:00 committed by Alexandre Julliard
parent efda5561d0
commit ec769d2d95
2 changed files with 8 additions and 2 deletions
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8
dlls/jscript/jsutils.c
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@ -449,10 +449,14 @@ HRESULT to_integer(script_ctx_t *ctx, VARIANT *v, jsexcept_t *ei, VARIANT *ret)
if(FAILED(hres))
return hres;
if(V_VT(&num) == VT_I4)
if(V_VT(&num) == VT_I4) {
*ret = num;
else
}else if(isnan(V_R8(&num))) {
V_VT(ret) = VT_I4;
V_I4(ret) = 0;
}else {
num_set_val(ret, V_R8(&num) >= 0.0 ? floor(V_R8(&num)) : -floor(-V_R8(&num)));
}
return S_OK;
}

2
dlls/jscript/tests/api.js
View File

@ -231,6 +231,8 @@ tmp = "abc".charAt(-1);
ok(tmp === "", "'abc',charAt(-1) = " + tmp);
tmp = "abc".charAt(0,2);
ok(tmp === "a", "'abc',charAt(0.2) = " + tmp);
tmp = "abc".charAt(NaN);
ok(tmp === "a", "'abc',charAt(NaN) = " + tmp);
tmp = "abc".charCodeAt(0);
ok(tmp === 0x61, "'abc'.charCodeAt(0) = " + tmp);