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z3-z3-4.13.0.src.ast.ast_lt.h Maven / Gradle / Ivy

/*++
Copyright (c) 2011 Microsoft Corporation

Module Name:

    ast_lt.h

Abstract:

    Total order on ASTs that does not depend on the internal ids.

Author:

    Leonardo de Moura (leonardo) 2011-04-08

Revision History:

--*/
#pragma once

class ast;

bool lt(ast * n1, ast * n2);
bool is_sorted(unsigned num, expr * const * ns);

struct ast_to_lt {
    bool operator()(ast * n1, ast * n2) const { return lt(n1, n2); }
};

struct ast_lt {
    bool operator()(ast * n1, ast * n2) const { return n1->get_id() < n2->get_id(); }
};

bool lex_lt(unsigned num, ast * const * n1, ast * const * n2);
inline bool lex_lt(unsigned num, expr * const * n1, expr * const * n2) {
    return lex_lt(num, reinterpret_cast(n1), reinterpret_cast(n2));
}