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| author | Andres Noetzli <andres.noetzli@gmail.com> | 2017-10-02 22:48:00 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-10-02 22:48:00 -0700 |
| commit | d0faa2b676130119c5d01e00851427fa97f44464 (patch) | |
| tree | 76e25b4558e6752d75230c7ac297af97f870ea24 /src/expr/node.h | |
| parent | 6861f66d2e2b54fc31d9151b4dbeb2964ea07f94 (diff) | |
Unify hash functions for pairs (#1161)
CVC4 was implementing multiple, slightly different hash functions for
pairs. With pull request #1157, we have a decent generic hash function
for pairs. This commit replaces the existing hash function
implementations with a typedef of the generic hash function.
Diffstat (limited to 'src/expr/node.h')
| -rw-r--r-- | src/expr/node.h | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/src/expr/node.h b/src/expr/node.h index 9b2ea1935..66f8b0a47 100644 --- a/src/expr/node.h +++ b/src/expr/node.h @@ -44,6 +44,7 @@ #include "expr/expr_iomanip.h" #include "options/language.h" #include "options/set_language.h" +#include "util/hash.h" #include "util/utility.h" namespace CVC4 { @@ -959,14 +960,8 @@ inline size_t TNodeHashFunction::operator()(TNode node) const { return node.getId(); } -struct TNodePairHashFunction { - size_t operator()(const std::pair<CVC4::TNode, CVC4::TNode>& pair ) const { - TNode n1 = pair.first; - TNode n2 = pair.second; - - return (size_t) (n1.getId() * 0x9e3779b9 + n2.getId()); - } -};/* struct TNodePairHashFunction */ +using TNodePairHashFunction = + PairHashFunction<TNode, TNode, TNodeHashFunction, TNodeHashFunction>; template <bool ref_count> inline size_t NodeTemplate<ref_count>::getNumChildren() const { |