I know this used to work:
#include <iostream>
#include <UT/UT_String.h>
using namespace std;
int main() {
UT_String bar;
printf(“gimme: ”);
cin >> bar;
printf(“%s\n”,(char*)bar);
return 0;
}
but 9.5 doesn't seem to like it.
What's the best way to fill a UT_String from stdin?
HDK: Can you fill a UT_String from stdin?
3450 5 1- BrianK
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- rafal
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You could try UT_WorkBuffer class (see comments in the header file):
#include <iostream>
#include <UT/UT_String.h>
#include <UT/UT_WorkBuffer.h>
using namespace std;
int main() {
UT_String bar;
UT_WorkBuffer buffer;
printf(“gimme: ”);
buffer.getline(cin);
printf(“buffer: %s\n”, buffer.buffer());
buffer.copyIntoString(bar);
printf(“str: %s\n”, bar.buffer());
return 0;
}
#include <iostream>
#include <UT/UT_String.h>
#include <UT/UT_WorkBuffer.h>
using namespace std;
int main() {
UT_String bar;
UT_WorkBuffer buffer;
printf(“gimme: ”);
buffer.getline(cin);
printf(“buffer: %s\n”, buffer.buffer());
buffer.copyIntoString(bar);
printf(“str: %s\n”, bar.buffer());
return 0;
}
- BrianK
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rafalDidn't know about that class, thanks.
You could try UT_WorkBuffer class (see comments in the header file):
However, if there's converting that's going to take place, I may as well just use ANSI strings… which I did & now everything is back to working like before.
Thanks for the clarification.
software dude @ Asylum
- edward
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I don't see how you can do that safely with ANSI strings though. Take for example, "char str; cin >> str". Now what happens if the user types in more than 4 characters? You might not crash of course until the user types in more than 16 characters due to memory alignment but doing so is definitely not safe.
- BrianK
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edwardmaybe “ANSI string” is not the correct term. I mean…
I don't see how you can do that safely with ANSI strings though. Take for example, "char str; cin >> str". Now what happens if the user types in more than 4 characters? You might not crash of course until the user types in more than 16 characters due to memory alignment but doing so is definitely not safe.
#include <string>
#include <iostream>
#include <UT/UT_String.h>
using namespace std;
int main() {
UT_String myUT;
string mySTR;
cin >> mySTR;
myUT = mySTR.c_str();
return 0;
}
software dude @ Asylum
- rafal
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note that in some cases you may want:
myUT.harden( mySTR.c_str() );
instead of
myUT = mySTR.c_str();
because the last one does only a shallow copy (unless you use UT_String::ALWAYS_DEEP in the myUT construction) and once mySTR goes out of scope that string will be deleted. Here, the last code snippet is fine because myUT is not used beyond the scope of mySTR.
myUT.harden( mySTR.c_str() );
instead of
myUT = mySTR.c_str();
because the last one does only a shallow copy (unless you use UT_String::ALWAYS_DEEP in the myUT construction) and once mySTR goes out of scope that string will be deleted. Here, the last code snippet is fine because myUT is not used beyond the scope of mySTR.
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