#include<iostre am>
#include<cstrin g>
#include<string >
#include<iomani p>
using namespace std;
int main()
{
string s;
char *tokenptr;
int space;
cout<<"-Please enter the spacing:";
cin>>space;
cout<<"-Please enter a string of length<70:"<<en dl;
getline(cin,s);
while(s.length( )>9)
{
cout<<"The input string is too long. Please reenter a string
of length < 70:"<<endl;
getline(cin,s);
}
char str[s.length()];
for(int i=0;i<=s.length ();i++)
{
str[i]=s[i];
}
tokenptr=strtok (str," ");
while(tokenptr! =NULL)
{
cout<<tokenptr;
for(int i=0;i<space;i++ )
cout<<" ";
tokenptr=strtok (NULL," ");
}
system("pause") ;
return 0;
}
------------------------------------------------------------------------------
In the program above, first, i use "cin" to assin a number to the
variable 'space'.Then i wanna use "getline" to save a string.But when
i execute the program,after typing the integer 2(the space),the
program cout
"-Please enter a string of length<70:" and stop. i can't continue
typing the string!! why and how can i change the code to reach my
purpose?? 6 2377 br*******@gmail .com wrote:
#include<iostre am>
#include<cstrin g>
#include<string >
#include<iomani p>
using namespace std;
int main()
{
string s;
char *tokenptr;
int space;
cout<<"-Please enter the spacing:";
cin>>space;
cout<<"-Please enter a string of length<70:"<<en dl;
getline(cin,s);
while(s.length( )>9)
{
cout<<"The input string is too long. Please reenter a string
of length < 70:"<<endl;
getline(cin,s);
}
char str[s.length()];
for(int i=0;i<=s.length ();i++)
{
str[i]=s[i];
}
tokenptr=strtok (str," ");
while(tokenptr! =NULL)
{
cout<<tokenptr;
for(int i=0;i<space;i++ )
cout<<" ";
tokenptr=strtok (NULL," ");
}
system("pause") ;
return 0;
}
------------------------------------------------------------------------------
In the program above, first, i use "cin" to assin a number to the
variable 'space'.Then i wanna use "getline" to save a string.But when
i execute the program,after typing the integer 2(the space),the
program cout
"-Please enter a string of length<70:" and stop.
What do you mean "stop"? Exit? Finishes execution?
i can't continue
typing the string!! why and how can i change the code to reach my
purpose??
You might want to use 'cin.ignore' after the 'cin>>space;'. The cin
buffer still contains the \n you used to push the number in, and the
'getline' hangs onto it, so the string you get is empty, most likely.
V
--
Please remove capital 'A's when replying by e-mail
I do not respond to top-posted replies, please don't ask br*******@gmail .com wrote:
#include<iostre am>
#include<cstrin g>
#include<string >
#include<iomani p>
using namespace std;
int main()
{
string s;
char *tokenptr;
int space;
cout<<"-Please enter the spacing:";
cin>>space;
cout<<"-Please enter a string of length<70:"<<en dl;
getline(cin,s);
while(s.length( )>9)
{
cout<<"The input string is too long. Please reenter a string
of length < 70:"<<endl;
You tell the user to enter a string of less than 70, then complain if
it's longer than 9? What's your logic there?
Brian br*******@gmail .com wrote:
[...]
int main()
{
string s;
[...]
char str[s.length()];
AFAIK, the above code won't compile.
Has this been added to the standard?
Or, at least, is it a common extension?
Ralph D. Ungermann wrote:
br*******@gmail .com wrote:
[...]
>int main() { string s;
[...]
> char str[s.length()];
AFAIK, the above code won't compile.
Has this been added to the standard?
Nope.
Or, at least, is it a common extension?
Not sure how common it is. GNU C++ has it. Borland used to
(don't know if it still does).
V
--
Please remove capital 'A's when replying by e-mail
I do not respond to top-posted replies, please don't ask
<br*******@gmai l.comwrote in message
news:11******** **************@ y66g2000hsf.goo glegroups.com.. .
#include<iostre am>
#include<cstrin g>
#include<string >
#include<iomani p>
using namespace std;
int main()
{
string s;
char *tokenptr;
int space;
cout<<"-Please enter the spacing:";
cin>>space;
cout<<"-Please enter a string of length<70:"<<en dl;
getline(cin,s);
while(s.length( )>9)
{
cout<<"The input string is too long. Please reenter a string
of length < 70:"<<endl;
getline(cin,s);
}
char str[s.length()];
for(int i=0;i<=s.length ();i++)
{
str[i]=s[i];
}
tokenptr=strtok (str," ");
while(tokenptr! =NULL)
{
cout<<tokenptr;
for(int i=0;i<space;i++ )
cout<<" ";
tokenptr=strtok (NULL," ");
}
system("pause") ;
return 0;
}
------------------------------------------------------------------------------
In the program above, first, i use "cin" to assin a number to the
variable 'space'.Then i wanna use "getline" to save a string.But when
i execute the program,after typing the integer 2(the space),the
program cout
"-Please enter a string of length<70:" and stop. i can't continue
typing the string!! why and how can i change the code to reach my
purpose??
Try 2 then pressing enter and see if it works.
cin.ignore should be used however. br*******@gmail .com wrote:
#include<iostre am>
#include<cstrin g>
#include<string >
#include<iomani p>
using namespace std;
int main()
{
string s;
char *tokenptr;
int space;
cout<<"-Please enter the spacing:";
cin>>space;
cout<<"-Please enter a string of length<70:"<<en dl;
getline(cin,s);
while(s.length( )>9)
{
cout<<"The input string is too long. Please reenter a string
of length < 70:"<<endl;
getline(cin,s);
}
char str[s.length()];
for(int i=0;i<=s.length ();i++)
{
str[i]=s[i];
}
tokenptr=strtok (str," ");
while(tokenptr! =NULL)
{
cout<<tokenptr;
for(int i=0;i<space;i++ )
cout<<" ";
tokenptr=strtok (NULL," ");
}
system("pause") ;
return 0;
}
------------------------------------------------------------------------------
In the program above, first, i use "cin" to assin a number to the
variable 'space'.Then i wanna use "getline" to save a string.But when
i execute the program,after typing the integer 2(the space),the
program cout
"-Please enter a string of length<70:" and stop. i can't continue
typing the string!! why and how can i change the code to reach my
purpose??
This was answered the first time you posted it. http://groups.google.com/group/comp....8a55c66c298b3/
--
Marcus Kwok
Replace 'invalid' with 'net' to reply This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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