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Diffstat (limited to 'libs/lambda/test/bind_tests_simple.cpp')
| -rw-r--r-- | libs/lambda/test/bind_tests_simple.cpp | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/libs/lambda/test/bind_tests_simple.cpp b/libs/lambda/test/bind_tests_simple.cpp new file mode 100644 index 000000000..1e63d6958 --- /dev/null +++ b/libs/lambda/test/bind_tests_simple.cpp @@ -0,0 +1,187 @@ +// bind_tests_simple.cpp -- The Boost Lambda Library ------------------ +// +// Copyright (C) 2000-2003 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi) +// Copyright (C) 2000-2003 Gary Powell (powellg@amazon.com) +// +// Distributed under the Boost Software License, Version 1.0. (See +// accompanying file LICENSE_1_0.txt or copy at +// http://www.boost.org/LICENSE_1_0.txt) +// +// For more information, see www.boost.org + +// ----------------------------------------------------------------------- + + +#include <boost/test/minimal.hpp> // see "Header Implementation Option" + +#include "boost/lambda/bind.hpp" + +#include <iostream> + +using namespace boost::lambda; + + +int sum_of_args_0() { return 0; } +int sum_of_args_1(int a) { return a; } +int sum_of_args_2(int a, int b) { return a+b; } +int sum_of_args_3(int a, int b, int c) { return a+b+c; } +int sum_of_args_4(int a, int b, int c, int d) { return a+b+c+d; } +int sum_of_args_5(int a, int b, int c, int d, int e) { return a+b+c+d+e; } +int sum_of_args_6(int a, int b, int c, int d, int e, int f) { return a+b+c+d+e+f; } +int sum_of_args_7(int a, int b, int c, int d, int e, int f, int g) { return a+b+c+d+e+f+g; } +int sum_of_args_8(int a, int b, int c, int d, int e, int f, int g, int h) { return a+b+c+d+e+f+g+h; } +int sum_of_args_9(int a, int b, int c, int d, int e, int f, int g, int h, int i) { return a+b+c+d+e+f+g+h+i; } + + +// ---------------------------- + +class A { + int i; +public: + A(int n) : i(n) {}; + int add(const int& j) { return i + j; } + int add2(int a1, int a2) { return i + a1 + a2; } + int add3(int a1, int a2, int a3) { return i + a1 + a2 + a3; } + int add4(int a1, int a2, int a3, int a4) { return i + a1 + a2 + a3 + a4; } + int add5(int a1, int a2, int a3, int a4, int a5) + { return i + a1 + a2 + a3 + a4 + a5; } + int add6(int a1, int a2, int a3, int a4, int a5, int a6) + { return i + a1 + a2 + a3 + a4 + a5 + a6; } + int add7(int a1, int a2, int a3, int a4, int a5, int a6, int a7) + { return i + a1 + a2 + a3 + a4 + a5 + a6 + a7; } + int add8(int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8) + { return i + a1 + a2 + a3 + a4 + a5 + a6 + a7 + a8; } + +}; + +void test_member_functions() +{ + using boost::ref; + A a(10); + int i = 1; + + + + + BOOST_CHECK(bind(&A::add, ref(a), _1)(i) == 11); + BOOST_CHECK(bind(&A::add, &a, _1)(i) == 11); + BOOST_CHECK(bind(&A::add, _1, 1)(a) == 11); + BOOST_CHECK(bind(&A::add, _1, 1)(make_const(&a)) == 11); + + BOOST_CHECK(bind(&A::add2, _1, 1, 1)(a) == 12); + BOOST_CHECK(bind(&A::add3, _1, 1, 1, 1)(a) == 13); + BOOST_CHECK(bind(&A::add4, _1, 1, 1, 1, 1)(a) == 14); + BOOST_CHECK(bind(&A::add5, _1, 1, 1, 1, 1, 1)(a) == 15); + BOOST_CHECK(bind(&A::add6, _1, 1, 1, 1, 1, 1, 1)(a) == 16); + BOOST_CHECK(bind(&A::add7, _1, 1, 1, 1, 1, 1, 1, 1)(a) == 17); + BOOST_CHECK(bind(&A::add8, _1, 1, 1, 1, 1, 1, 1, 1, 1)(a) == 18); + + // This should fail, as lambda functors store arguments as const + // bind(&A::add, a, _1); +} + +struct B { + B(int n) : i(n) {}; + int i; +}; + +void test_data_members() +{ + using boost::ref; + B b(10); + BOOST_CHECK(bind(&B::i, ref(b))() == 10); + BOOST_CHECK(bind(&B::i, b)() == 10); + BOOST_CHECK(bind(&B::i, _1)(b) == 10); + BOOST_CHECK(bind(&B::i, _1)(B(11)) == 11); + bind(&B::i, ref(b))() = 1; + BOOST_CHECK(b.i == 1); +} + +int test_main(int, char *[]) { + + int i = 1; int j = 2; int k = 3; + int result; + + // bind all parameters + BOOST_CHECK(bind(&sum_of_args_0)()==0); + BOOST_CHECK(bind(&sum_of_args_1, 1)()==1); + BOOST_CHECK(bind(&sum_of_args_2, 1, 2)()==3); + BOOST_CHECK(bind(&sum_of_args_3, 1, 2, 3)()==6); + BOOST_CHECK(bind(&sum_of_args_4, 1, 2, 3, 4)()==10); + BOOST_CHECK(bind(&sum_of_args_5, 1, 2, 3, 4, 5)()==15); + BOOST_CHECK(bind(&sum_of_args_6, 1, 2, 3, 4, 5, 6)()==21); + BOOST_CHECK(bind(&sum_of_args_7, 1, 2, 3, 4, 5, 6, 7)()==28); + BOOST_CHECK(bind(&sum_of_args_8, 1, 2, 3, 4, 5, 6, 7, 8)()==36); + BOOST_CHECK(bind(&sum_of_args_9, 1, 2, 3, 4, 5, 6, 7, 8, 9)()==45); + + // first parameter open + BOOST_CHECK(bind(&sum_of_args_0)()==0); + BOOST_CHECK(bind(&sum_of_args_1, _1)(i)==1); + BOOST_CHECK(bind(&sum_of_args_2, _1, 2)(i)==3); + BOOST_CHECK(bind(&sum_of_args_3, _1, 2, 3)(i)==6); + BOOST_CHECK(bind(&sum_of_args_4, _1, 2, 3, 4)(i)==10); + BOOST_CHECK(bind(&sum_of_args_5, _1, 2, 3, 4, 5)(i)==15); + BOOST_CHECK(bind(&sum_of_args_6, _1, 2, 3, 4, 5, 6)(i)==21); + BOOST_CHECK(bind(&sum_of_args_7, _1, 2, 3, 4, 5, 6, 7)(i)==28); + BOOST_CHECK(bind(&sum_of_args_8, _1, 2, 3, 4, 5, 6, 7, 8)(i)==36); + BOOST_CHECK(bind(&sum_of_args_9, _1, 2, 3, 4, 5, 6, 7, 8, 9)(i)==45); + + // two open arguments + BOOST_CHECK(bind(&sum_of_args_0)()==0); + BOOST_CHECK(bind(&sum_of_args_1, _1)(i)==1); + BOOST_CHECK(bind(&sum_of_args_2, _1, _2)(i, j)==3); + BOOST_CHECK(bind(&sum_of_args_3, _1, _2, 3)(i, j)==6); + BOOST_CHECK(bind(&sum_of_args_4, _1, _2, 3, 4)(i, j)==10); + BOOST_CHECK(bind(&sum_of_args_5, _1, _2, 3, 4, 5)(i, j)==15); + BOOST_CHECK(bind(&sum_of_args_6, _1, _2, 3, 4, 5, 6)(i, j)==21); + BOOST_CHECK(bind(&sum_of_args_7, _1, _2, 3, 4, 5, 6, 7)(i, j)==28); + BOOST_CHECK(bind(&sum_of_args_8, _1, _2, 3, 4, 5, 6, 7, 8)(i, j)==36); + BOOST_CHECK(bind(&sum_of_args_9, _1, _2, 3, 4, 5, 6, 7, 8, 9)(i, j)==45); + + // three open arguments + BOOST_CHECK(bind(&sum_of_args_0)()==0); + BOOST_CHECK(bind(&sum_of_args_1, _1)(i)==1); + BOOST_CHECK(bind(&sum_of_args_2, _1, _2)(i, j)==3); + BOOST_CHECK(bind(&sum_of_args_3, _1, _2, _3)(i, j, k)==6); + BOOST_CHECK(bind(&sum_of_args_4, _1, _2, _3, 4)(i, j, k)==10); + BOOST_CHECK(bind(&sum_of_args_5, _1, _2, _3, 4, 5)(i, j, k)==15); + BOOST_CHECK(bind(&sum_of_args_6, _1, _2, _3, 4, 5, 6)(i, j, k)==21); + BOOST_CHECK(bind(&sum_of_args_7, _1, _2, _3, 4, 5, 6, 7)(i, j, k)==28); + BOOST_CHECK(bind(&sum_of_args_8, _1, _2, _3, 4, 5, 6, 7, 8)(i, j, k)==36); + BOOST_CHECK(bind(&sum_of_args_9, _1, _2, _3, 4, 5, 6, 7, 8, 9)(i, j, k)==45); + + // function compositions with bind + BOOST_CHECK(bind(&sum_of_args_3, bind(&sum_of_args_2, _1, 2), 2, 3)(i)==8); + BOOST_CHECK( + bind(&sum_of_args_9, + bind(&sum_of_args_0), // 0 + bind(&sum_of_args_1, _1), // 1 + bind(&sum_of_args_2, _1, _2), // 3 + bind(&sum_of_args_3, _1, _2, _3), // 6 + bind(&sum_of_args_4, _1, _2, _3, 4), // 10 + bind(&sum_of_args_5, _1, _2, _3, 4, 5), // 15 + bind(&sum_of_args_6, _1, _2, _3, 4, 5, 6), // 21 + bind(&sum_of_args_7, _1, _2, _3, 4, 5, 6, 7), // 28 + bind(&sum_of_args_8, _1, _2, _3, 4, 5, 6, 7, 8) // 36 + )(i, j, k) == 120); + + // deeper nesting + result = + bind(&sum_of_args_1, // 12 + bind(&sum_of_args_4, // 12 + bind(&sum_of_args_2, // 3 + bind(&sum_of_args_1, // 1 + bind(&sum_of_args_1, _1) // 1 + ), + _2), + _2, + _3, + 4) + )(i, j, k); + BOOST_CHECK(result == 12); + + test_member_functions(); + + + return 0; +} |