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Extend this test to also be valid in C++14. 

llvm-svn: 269397
This commit is contained in:
Richard Smith 2016-05-13 06:42:55 +00:00
parent 9469fe7de3
commit 845d0d74ba
1 changed files with 7 additions and 7 deletions
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14
clang/test/SemaCXX/constexpr-nqueens.cpp
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@ -10,26 +10,26 @@ struct Board {
constexpr Board(const Board &O) : State(O.State), Failed(O.Failed) {}
constexpr Board(uint64_t State, bool Failed = false) :
State(State), Failed(Failed) {}
constexpr Board addQueen(int Row, int Col) {
constexpr Board addQueen(int Row, int Col) const {
return Board(State | ((uint64_t)Row << (Col * 4)));
}
constexpr int getQueenRow(int Col) {
constexpr int getQueenRow(int Col) const {
return (State >> (Col * 4)) & 0xf;
}
constexpr bool ok(int Row, int Col) {
constexpr bool ok(int Row, int Col) const {
return okRecurse(Row, Col, 0);
}
constexpr bool okRecurse(int Row, int Col, int CheckCol) {
constexpr bool okRecurse(int Row, int Col, int CheckCol) const {
return Col == CheckCol ? true :
getQueenRow(CheckCol) == Row ? false :
getQueenRow(CheckCol) == Row + (Col - CheckCol) ? false :
getQueenRow(CheckCol) == Row + (CheckCol - Col) ? false :
okRecurse(Row, Col, CheckCol + 1);
}
constexpr bool at(int Row, int Col) {
constexpr bool at(int Row, int Col) const {
return getQueenRow(Col) == Row;
}
constexpr bool check(const char *, int=0, int=0);
constexpr bool check(const char *, int=0, int=0) const;
};
constexpr Board buildBoardRecurse(int N, int Col, const Board &B);
@ -54,7 +54,7 @@ constexpr Board buildBoard(int N) {
constexpr Board q8 = buildBoard(8);
constexpr bool Board::check(const char *p, int Row, int Col) {
constexpr bool Board::check(const char *p, int Row, int Col) const {
return
*p == '\n' ? check(p+1, Row+1, 0) :
*p == 'o' ? at(Row, Col) && check(p+1, Row, Col+1) :