Lambdas in C++03

Vote count:

1

So, I am trying to replace the following code (C++11):

struct test {
    const char *n;
    int i;

    std::function<int(void)> read;
    std::function<void(int)> write;
};

#define define_test(n, i, bodyRead, bodyWrite)  \
    { n, i, []() { bodyRead; }, [](int v) { bodyWrite; } }

std::initializer_list<test> tests = {
    define_test("test1", 1, return 1, v = 2),
    ...
};

with a C++03 compatible code that gives the same effect:

struct test {
    test(const char *_n, int _i, boost::function<int(void)> _read, boost::function<void(int)> _write) {
        n = _n;
        i = _i;
        read = _read;
        write = _write;
    }

    const char *n;
    int i;

    boost::function<int(void)> read;
    boost::function<void(int)> write;
};

#define define_test(n, i, bodyRead, bodyWrite)  \
    ( n, i, []() { bodyRead; }, [](int v) { bodyWrite; } )

std::vector<test> tests;
static void init_tests(void) {
    tests.push_back(define_test("test1", 1, return 1, v = 2));
}

With no doubt, The Visual C++ studio 2008 Express compiler rejects the lambda expressions, using boost wouldn't help it either, except was bind() and the lambda boost got, which I am not exactly sure how I would do it with this.

To elaborate more on this, I want to also be able to use like so (that means structs and static functions won't be of much help either):

using namespace boost::assign;
static std::vector<test> tests;
static void init_tests(void) {
    push_back(tests)
        define_test(...)
        ...;
}

That's because I am writing a ton of this and C++11 was so easy.

asked 2 mins ago

user9000

1,219

Lambdas in C++03