C++ (Cpp) duk__toint32_touint32_helper示例

示例#1

文件： duk_js_ops.c 项目： cherry-wb/duktape

duk_int32_t duk_js_toint32(duk_hthread *thr, duk_tval *tv) {
	duk_double_t d = duk_js_tonumber(thr, tv);  /* invalidates tv */
	d = duk__toint32_touint32_helper(d, 1);
	DUK_ASSERT(DUK_FPCLASSIFY(d) == DUK_FP_ZERO || DUK_FPCLASSIFY(d) == DUK_FP_NORMAL);
	DUK_ASSERT(d >= -2147483648.0 && d <= 2147483647.0);  /* [-0x80000000,0x7fffffff] */
	DUK_ASSERT(d == ((duk_double_t) ((duk_int32_t) d)));  /* whole, won't clip */
	return (duk_int32_t) d;
}

示例#2

文件： duk_js_ops.c 项目： cherry-wb/duktape

duk_uint32_t duk_js_touint32(duk_hthread *thr, duk_tval *tv) {
	duk_double_t d = duk_js_tonumber(thr, tv);  /* invalidates tv */
	d = duk__toint32_touint32_helper(d, 0);
	DUK_ASSERT(DUK_FPCLASSIFY(d) == DUK_FP_ZERO || DUK_FPCLASSIFY(d) == DUK_FP_NORMAL);
	DUK_ASSERT(d >= 0.0 && d <= 4294967295.0);  /* [0x00000000, 0xffffffff] */
	DUK_ASSERT(d == ((duk_double_t) ((duk_uint32_t) d)));  /* whole, won't clip */
	return (duk_uint32_t) d;

}

示例#3

文件： duk_js_ops.c 项目： bihai/duk4vb

DUK_INTERNAL duk_int32_t duk_js_toint32(duk_hthread *thr, duk_tval *tv) {
	duk_double_t d;

#if defined(DUK_USE_FASTINT)
	if (DUK_TVAL_IS_FASTINT(tv)) {
		return DUK_TVAL_GET_FASTINT_I32(tv);
	}
#endif

	d = duk_js_tonumber(thr, tv);  /* invalidates tv */
	d = duk__toint32_touint32_helper(d, 1);
	DUK_ASSERT(DUK_FPCLASSIFY(d) == DUK_FP_ZERO || DUK_FPCLASSIFY(d) == DUK_FP_NORMAL);
	DUK_ASSERT(d >= -2147483648.0 && d <= 2147483647.0);  /* [-0x80000000,0x7fffffff] */
	DUK_ASSERT(d == ((duk_double_t) ((duk_int32_t) d)));  /* whole, won't clip */
	return (duk_int32_t) d;
}