/*
     * Based on Hacker's Delight Fig. 11-5, the two-table-lookup, branch-free implementation.
     *
     * The key idea is that based on the number of leading zeros (equivalently, floor(log2(x))), we
     * can narrow the possible floor(log10(x)) values to two. For example, if floor(log2(x)) is 6,
     * then 64 <= x < 128, so floor(log10(x)) is either 1 or 2.
     */
    int y = maxLog10ForLeadingZeros[Integer.numberOfLeadingZeros(x)];

		return nil, errors.New("no program header matches mapping info")
	}
	if len(headers) == 1 {
		return headers[0], nil
	}

	// Use the file offset corresponding to the address to symbolize, to narrow
	// down the header.
	return elfexec.HeaderForFileOffset(headers, addr-m.start+m.offset)
}

// file implements the binutils.ObjFile interface.
type file struct {
	b       *binrep
	name    string

    /*
     * Based on Hacker's Delight Fig. 11-5, the two-table-lookup, branch-free implementation.
     *
     * The key idea is that based on the number of leading zeros (equivalently, floor(log2(x))), we
     * can narrow the possible floor(log10(x)) values to two. For example, if floor(log2(x)) is 6,
     * then 64 <= x < 128, so floor(log10(x)) is either 1 or 2.
     */
    int y = maxLog10ForLeadingZeros[Long.numberOfLeadingZeros(x)];

    /*
     * Based on Hacker's Delight Fig. 11-5, the two-table-lookup, branch-free implementation.
     *
     * The key idea is that based on the number of leading zeros (equivalently, floor(log2(x))), we
     * can narrow the possible floor(log10(x)) values to two. For example, if floor(log2(x)) is 6,
     * then 64 <= x < 128, so floor(log10(x)) is either 1 or 2.
     */
    int y = maxLog10ForLeadingZeros[Long.numberOfLeadingZeros(x)];

length before the Court, perennially hopeless."`

	principle int `text:"The one great principle of the English law is, to make business for itself. There is no other principle distinctly, certainly, and consistently maintained through all its narrow turnings. Viewed by this light it becomes a coherent scheme, and not the monstrous maze the laity are apt to think it. Let them but once clearly perceive that its grand principle is to make business for itself at their expense, and surely they will...

a full C parser and type checker that was also aware of any extensions
known to the system compiler (for example, all the GNU C extensions) as
well as the system-specific header locations and system-specific
pre-#defined macros. This is certainly possible to do, but it is an
enormous amount of work.

Cgo takes a different approach. It determines the meaning of C
identifiers not by parsing C code but by feeding carefully constructed

// Test that C symbols larger than a page play nicely with the race detector.
int ii[65537];

// issue 17537
// The void* cast introduced by cgo to avoid problems
// with const/volatile qualifiers breaks C preprocessor macros that
// emulate functions.

typedef struct {
	int i;
} S17537;

int I17537(S17537 *p);

#define I17537(p) ((p)->i)

// Calling this function used to fail without the cast.

			// the 'go get' command, not an intermediate state, and is therefore
			// deterministic and therefore cacheable, and the constraints on the
			// selected version of each module can only narrow as we iterate.
			//
			// "all" is functionally very similar to a wildcard pattern. The set of
			// packages imported by the main module does not change, and the query

	// 	check.expr(x, e.X)
	// 	if x.mode == invalid {
	// 		goto Error
	// 	}
	// 	check.unary(x, e, e.Op)
	// 	if x.mode == invalid {
	// 		goto Error
	// 	}
	// 	if e.Op == token.ARROW {
	// 		x.expr = e
	// 		return statement // receive operations may appear in statement context
	// 	}

	// case *syntax.BinaryExpr:
	// 	check.binary(x, e, e.X, e.Y, e.Op)
	// 	if x.mode == invalid {

			// TODO not sure if this is best done in wide precision or narrow
			// Double-rounding might be an issue.
			// Note that the pre-SSA implementation does the entire calculation
			// in wide format, so wide is compatible.
			xreal = s.newValueOrSfCall2(divop, wt, xreal, denom)
			ximag = s.newValueOrSfCall2(divop, wt, ximag, denom)

			if pt != wt { // Narrow to store back