#include <functional>
#include <cassert>
+
int count = 0;
+
+// 0 args, return int
+
+int f_int_0()
+{
+ return 3;
+}
+
+struct A_int_0
+{
+ int operator()() {return 4;}
+};
+
+void test_int_0()
+{
+ // function
+ {
+ std::function<int ()> r1(f_int_0);
+ assert(r1() == 3);
+ }
+ // function pointer
+ {
+ int (*fp)() = f_int_0;
+ std::function<int ()> r1(fp);
+ assert(r1() == 3);
+ }
+ // functor
+ {
+ A_int_0 a0;
+ std::function<int ()> r1(a0);
+ assert(r1() == 4);
+ }
+}
+
+
+// 0 args, return void
+
+void f_void_0()
+{
+ ++count;
+}
+
+struct A_void_0
+{
+ void operator()() {++count;}
+};
+
+void
+test_void_0()
+{
+ int save_count = count;
+ // function
+ {
+ std::function<void ()> r1(f_void_0);
+ r1();
+ assert(count == save_count+1);
+ save_count = count;
+ }
+ // function pointer
+ {
+ void (*fp)() = f_void_0;
+ std::function<void ()> r1(fp);
+ r1();
+ assert(count == save_count+1);
+ save_count = count;
+ }
+ // functor
+ {
+ A_void_0 a0;
+ std::function<void ()> r1(a0);
+ r1();
+ assert(count == save_count+1);
+ save_count = count;
+ }
+}
+
// 1 arg, return void
void f_void_1(int i)
int save_count = count;
// function
{
- std::function<void (int)> r1(f_void_1);
- int i = 2;
- r1(i);
- assert(count == save_count+2);
- save_count = count;
+ std::function<void (int)> r1(f_void_1);
+ int i = 2;
+ r1(i);
+ assert(count == save_count+2);
+ save_count = count;
}
// function pointer
{
- void (*fp)(int) = f_void_1;
- std::function<void (int)> r1(fp);
- int i = 3;
- r1(i);
- assert(count == save_count+3);
- save_count = count;
+ void (*fp)(int) = f_void_1;
+ std::function<void (int)> r1(fp);
+ int i = 3;
+ r1(i);
+ assert(count == save_count+3);
+ save_count = count;
}
// functor
{
- A_void_1 a0;
- std::function<void (int)> r1(a0);
- int i = 4;
- r1(i);
- assert(count == save_count+4);
- save_count = count;
+ A_void_1 a0;
+ std::function<void (int)> r1(a0);
+ int i = 4;
+ r1(i);
+ assert(count == save_count+4);
+ save_count = count;
}
// member function pointer
{
- void (A_void_1::*fp)() = &A_void_1::mem1;
- std::function<void (A_void_1)> r1(fp);
- A_void_1 a;
- r1(a);
- assert(count == save_count+1);
- save_count = count;
- A_void_1* ap = &a;
- std::function<void (A_void_1*)> r2 = fp;
- r2(ap);
- assert(count == save_count+1);
- save_count = count;
+ void (A_void_1::*fp)() = &A_void_1::mem1;
+ std::function<void (A_void_1)> r1(fp);
+ A_void_1 a;
+ r1(a);
+ assert(count == save_count+1);
+ save_count = count;
+ A_void_1* ap = &a;
+ std::function<void (A_void_1*)> r2 = fp;
+ r2(ap);
+ assert(count == save_count+1);
+ save_count = count;
}
// const member function pointer
{
- void (A_void_1::*fp)() const = &A_void_1::mem2;
- std::function<void (A_void_1)> r1(fp);
- A_void_1 a;
- r1(a);
- assert(count == save_count+1);
- save_count = count;
- std::function<void (A_void_1*)> r2(fp);
- A_void_1* ap = &a;
- r2(ap);
- assert(count == save_count+1);
- save_count = count;
+ void (A_void_1::*fp)() const = &A_void_1::mem2;
+ std::function<void (A_void_1)> r1(fp);
+ A_void_1 a;
+ r1(a);
+ assert(count == save_count+1);
+ save_count = count;
+ std::function<void (A_void_1*)> r2(fp);
+ A_void_1* ap = &a;
+ r2(ap);
+ assert(count == save_count+1);
+ save_count = count;
}
}
{
// function
{
- std::function<int (int)> r1(f_int_1);
- int i = 2;
- assert(r1(i) == 3);
+ std::function<int (int)> r1(f_int_1);
+ int i = 2;
+ assert(r1(i) == 3);
}
// function pointer
{
- int (*fp)(int) = f_int_1;
- std::function<int (int)> r1(fp);
- int i = 3;
- assert(r1(i) == 4);
+ int (*fp)(int) = f_int_1;
+ std::function<int (int)> r1(fp);
+ int i = 3;
+ assert(r1(i) == 4);
}
// functor
{
- A_int_1 a0;
- std::function<int (int)> r1(a0);
- int i = 4;
- assert(r1(i) == 3);
+ A_int_1 a0;
+ std::function<int (int)> r1(a0);
+ int i = 4;
+ assert(r1(i) == 3);
}
// member function pointer
{
- int (A_int_1::*fp)() = &A_int_1::mem1;
- std::function<int (A_int_1)> r1(fp);
- A_int_1 a;
- assert(r1(a) == 3);
- std::function<int (A_int_1*)> r2(fp);
- A_int_1* ap = &a;
- assert(r2(ap) == 3);
+ int (A_int_1::*fp)() = &A_int_1::mem1;
+ std::function<int (A_int_1)> r1(fp);
+ A_int_1 a;
+ assert(r1(a) == 3);
+ std::function<int (A_int_1*)> r2(fp);
+ A_int_1* ap = &a;
+ assert(r2(ap) == 3);
}
// const member function pointer
{
- int (A_int_1::*fp)() const = &A_int_1::mem2;
- std::function<int (A_int_1)> r1(fp);
- A_int_1 a;
- assert(r1(a) == 4);
- std::function<int (A_int_1*)> r2(fp);
- A_int_1* ap = &a;
- assert(r2(ap) == 4);
+ int (A_int_1::*fp)() const = &A_int_1::mem2;
+ std::function<int (A_int_1)> r1(fp);
+ A_int_1 a;
+ assert(r1(a) == 4);
+ std::function<int (A_int_1*)> r2(fp);
+ A_int_1* ap = &a;
+ assert(r2(ap) == 4);
}
// member data pointer
{
- int A_int_1::*fp = &A_int_1::data_;
- std::function<int& (A_int_1&)> r1(fp);
- A_int_1 a;
- assert(r1(a) == 5);
- r1(a) = 6;
- assert(r1(a) == 6);
- std::function<int& (A_int_1*)> r2(fp);
- A_int_1* ap = &a;
- assert(r2(ap) == 6);
- r2(ap) = 7;
- assert(r2(ap) == 7);
+ int A_int_1::*fp = &A_int_1::data_;
+ std::function<int& (A_int_1&)> r1(fp);
+ A_int_1 a;
+ assert(r1(a) == 5);
+ r1(a) = 6;
+ assert(r1(a) == 6);
+ std::function<int& (A_int_1*)> r2(fp);
+ A_int_1* ap = &a;
+ assert(r2(ap) == 6);
+ r2(ap) = 7;
+ assert(r2(ap) == 7);
}
}
int save_count = count;
// function
{
- std::function<void (int, int)> r1(f_void_2);
- int i = 2;
- int j = 3;
- r1(i, j);
- assert(count == save_count+5);
- save_count = count;
+ std::function<void (int, int)> r1(f_void_2);
+ int i = 2;
+ int j = 3;
+ r1(i, j);
+ assert(count == save_count+5);
+ save_count = count;
}
// function pointer
{
- void (*fp)(int, int) = f_void_2;
- std::function<void (int, int)> r1(fp);
- int i = 3;
- int j = 4;
- r1(i, j);
- assert(count == save_count+7);
- save_count = count;
+ void (*fp)(int, int) = f_void_2;
+ std::function<void (int, int)> r1(fp);
+ int i = 3;
+ int j = 4;
+ r1(i, j);
+ assert(count == save_count+7);
+ save_count = count;
}
// functor
{
- A_void_2 a0;
- std::function<void (int, int)> r1(a0);
- int i = 4;
- int j = 5;
- r1(i, j);
- assert(count == save_count+9);
- save_count = count;
+ A_void_2 a0;
+ std::function<void (int, int)> r1(a0);
+ int i = 4;
+ int j = 5;
+ r1(i, j);
+ assert(count == save_count+9);
+ save_count = count;
}
// member function pointer
{
- void (A_void_2::*fp)(int) = &A_void_2::mem1;
- std::function<void (A_void_2, int)> r1(fp);
- A_void_2 a;
- int i = 3;
- r1(a, i);
- assert(count == save_count+3);
- save_count = count;
- std::function<void (A_void_2*, int)> r2(fp);
- A_void_2* ap = &a;
- r2(ap, i);
- assert(count == save_count+3);
- save_count = count;
+ void (A_void_2::*fp)(int) = &A_void_2::mem1;
+ std::function<void (A_void_2, int)> r1(fp);
+ A_void_2 a;
+ int i = 3;
+ r1(a, i);
+ assert(count == save_count+3);
+ save_count = count;
+ std::function<void (A_void_2*, int)> r2(fp);
+ A_void_2* ap = &a;
+ r2(ap, i);
+ assert(count == save_count+3);
+ save_count = count;
}
// const member function pointer
{
- void (A_void_2::*fp)(int) const = &A_void_2::mem2;
- std::function<void (A_void_2, int)> r1(fp);
- A_void_2 a;
- int i = 4;
- r1(a, i);
- assert(count == save_count+4);
- save_count = count;
- std::function<void (A_void_2*, int)> r2(fp);
- A_void_2* ap = &a;
- r2(ap, i);
- assert(count == save_count+4);
- save_count = count;
+ void (A_void_2::*fp)(int) const = &A_void_2::mem2;
+ std::function<void (A_void_2, int)> r1(fp);
+ A_void_2 a;
+ int i = 4;
+ r1(a, i);
+ assert(count == save_count+4);
+ save_count = count;
+ std::function<void (A_void_2*, int)> r2(fp);
+ A_void_2* ap = &a;
+ r2(ap, i);
+ assert(count == save_count+4);
+ save_count = count;
}
}
int mem2(int i) const {return i+2;}
};
-void
-testint_2()
+void test_int_2()
{
// function
{
- std::function<int (int, int)> r1(f_int_2);
- int i = 2;
- int j = 3;
- assert(r1(i, j) == i+j);
+ std::function<int (int, int)> r1(f_int_2);
+ int i = 2;
+ int j = 3;
+ assert(r1(i, j) == i+j);
}
// function pointer
{
- int (*fp)(int, int) = f_int_2;
- std::function<int (int, int)> r1(fp);
- int i = 3;
- int j = 4;
- assert(r1(i, j) == i+j);
+ int (*fp)(int, int) = f_int_2;
+ std::function<int (int, int)> r1(fp);
+ int i = 3;
+ int j = 4;
+ assert(r1(i, j) == i+j);
}
// functor
{
- A_int_2 a0;
- std::function<int (int, int)> r1(a0);
- int i = 4;
- int j = 5;
- assert(r1(i, j) == i+j);
+ A_int_2 a0;
+ std::function<int (int, int)> r1(a0);
+ int i = 4;
+ int j = 5;
+ assert(r1(i, j) == i+j);
}
// member function pointer
{
- int(A_int_2::*fp)(int) = &A_int_2::mem1;
- std::function<int (A_int_2, int)> r1(fp);
- A_int_2 a;
- int i = 3;
- assert(r1(a, i) == i+1);
- std::function<int (A_int_2*, int)> r2(fp);
- A_int_2* ap = &a;
- assert(r2(ap, i) == i+1);
+ int(A_int_2::*fp)(int) = &A_int_2::mem1;
+ std::function<int (A_int_2, int)> r1(fp);
+ A_int_2 a;
+ int i = 3;
+ assert(r1(a, i) == i+1);
+ std::function<int (A_int_2*, int)> r2(fp);
+ A_int_2* ap = &a;
+ assert(r2(ap, i) == i+1);
}
// const member function pointer
{
- int (A_int_2::*fp)(int) const = &A_int_2::mem2;
- std::function<int (A_int_2, int)> r1(fp);
- A_int_2 a;
- int i = 4;
- assert(r1(a, i) == i+2);
- std::function<int (A_int_2*, int)> r2(fp);
- A_int_2* ap = &a;
- assert(r2(ap, i) == i+2);
+ int (A_int_2::*fp)(int) const = &A_int_2::mem2;
+ std::function<int (A_int_2, int)> r1(fp);
+ A_int_2 a;
+ int i = 4;
+ assert(r1(a, i) == i+2);
+ std::function<int (A_int_2*, int)> r2(fp);
+ A_int_2* ap = &a;
+ assert(r2(ap, i) == i+2);
}
}
int main()
{
+ test_void_0();
+ test_int_0();
test_void_1();
test_int_1();
test_void_2();
- testint_2();
+ test_int_2();
}