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fixups for gcc-4.7 #4

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2 changes: 1 addition & 1 deletion doc/c++/gdb-class-layout.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,7 @@ Steps

4. Build the ``gdb-ex-1.cc`` to get all debugging information in ``gdb``::

c++ -ggdb -O2 -W -Wall gdb-ex-1.cc -o gdb-ex-1
c++ -ggdb -O1 -W -Wall gdb-ex-1.cc -o gdb-ex-1

5. Run the code under ``gdb``, insert a break point at ``main`` and
inspect its assembly::
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2 changes: 1 addition & 1 deletion exercises/c++/gdb-ex-1.cc
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Expand Up @@ -6,7 +6,7 @@ int f( int x ) { return x*x; }

int main(int, char **)
{
int y, x = 5, z = 6;
int y = 4, x = 5, z = 6;
printf("y= %d\n", y);
y = f(x);
printf("y= %d\n", y);
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10 changes: 5 additions & 5 deletions exercises/c++/gdb-ex-2.cc
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Expand Up @@ -28,13 +28,13 @@ main(int, char **)
B b;

std::cout << "size of a: " << sizeof(a)
<< " offset of ad: " << offsetof(A, ad)
<< std::endl;
<< " offset of ad: " << offsetof(A, ad)
<< std::endl;

std::cout << "size of b: " << sizeof(b)
<< " offset of ad: " << offsetof(B, ad)
<< " offset of bd: " << offsetof(B, bd)
<< std::endl;
<< " offset of ad: " << offsetof(B, ad)
<< " offset of bd: " << offsetof(B, bd)
<< std::endl;

f(&a);
f(&b);
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12 changes: 6 additions & 6 deletions exercises/c++/gdb-ex-3.cc
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Expand Up @@ -5,7 +5,7 @@ class A
{
public:
virtual void m1() { std::cout << "A::m1()" << std::endl; }
virtual void m2() { std::cout << "A::m1()" << std::endl; }
virtual void m2() { std::cout << "A::m2()" << std::endl; }
int ad;
};

Expand Down Expand Up @@ -47,13 +47,13 @@ int main(int, char **)
B b2;

std::cout << "size of a: " << sizeof(a)
<< " offset of ad: " << offsetof(A, ad)
<< std::endl;
//<< " offset of ad: " << offsetof(A, ad)
<< std::endl;

std::cout << "size of b: " << sizeof(b1)
<< " offset of ad: " << offsetof(B, ad)
<< " offset of bd: " << offsetof(B, bd)
<< std::endl;
//<< " offset of ad: " << offsetof(B, ad)
//<< " offset of bd: " << offsetof(B, bd)
<< std::endl;


std::cout << "a: " << std::endl; print_vtable(&a);
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