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xemacs, gdb, I can't input from the terminal in main function, but other
From: |
davinci |
Subject: |
xemacs, gdb, I can't input from the terminal in main function, but others functions well. |
Date: |
8 Sep 2005 03:33:05 -0700 |
User-agent: |
G2/0.2 |
I had study it for a long time .but I didn't solve it .Ihad read
<<Debuging with GDB>>
But I didn't get something useful.
include<iostream>
#include<cstdlib>
using std::isdigit;
int main()
{ int i=4;
try
{
while(1)
{
std::cin>>i;
if(!isdigit(i))
{
std::cout<<"not digit ,once more"<<std::endl;
std::cout<<"i="<<i<<std::endl;
}
if(i==2)
{
std::cout<<"good boy"<<std::endl;
}
else
{
std::cout<<"bad boy"<<std::endl;
}
}
}
catch(...)
{
std::cout<<"execption had happened"<<std::endl;
}
}
//end of the codes
//from here: std::cin>>i;
(gdb) s //here ,no chance to input anything.
(gdb) s
(gdb) s
not digit ,once more
(gdb) s
i=4
(gdb) s
(gdb) s
bad boy
(gdb) s //no chance to input anything,there is no prompt for input.
(gdb) s
(gdb) s
not digit ,once more
(gdb) s
i=4
(gdb)
But I can input something when I am no in the main function.
anyhelp?
thanks very much.
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davinci <=