var BI_RM = "0123456789abcdefghijklmnopqrstuvwxyz";
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export function int2char(n) {
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return BI_RM.charAt(n);
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}
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//#region BIT_OPERATIONS
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// (public) this & a
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export function op_and(x, y) {
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return x & y;
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}
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// (public) this | a
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export function op_or(x, y) {
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return x | y;
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}
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// (public) this ^ a
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export function op_xor(x, y) {
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return x ^ y;
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}
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// (public) this & ~a
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export function op_andnot(x, y) {
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return x & ~y;
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}
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// return index of lowest 1-bit in x, x < 2^31
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export function lbit(x) {
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if (x == 0) {
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return -1;
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}
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var r = 0;
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if ((x & 0xffff) == 0) {
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x >>= 16;
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r += 16;
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}
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if ((x & 0xff) == 0) {
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x >>= 8;
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r += 8;
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}
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if ((x & 0xf) == 0) {
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x >>= 4;
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r += 4;
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}
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if ((x & 3) == 0) {
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x >>= 2;
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r += 2;
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}
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if ((x & 1) == 0) {
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++r;
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}
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return r;
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}
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// return number of 1 bits in x
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export function cbit(x) {
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var r = 0;
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while (x != 0) {
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x &= x - 1;
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++r;
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}
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return r;
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}
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//#endregion BIT_OPERATIONS
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