cin causes infinite loop in my program
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I am writing this program where I read in a line of text. I am able to enter the text just fine and it stores okay, but then when I go to prompt user for another entry (such as an integer) I get an infinite loop because it is waiting for a valid entry. example: cout << "please enter a string of characters."; cin.getline(tempstringgoeshere, BUFFER); int selection = 0; while(selection < 1 || selection > 5) { cout << "Please make a selection:"; cin >> selection; // DOES NOT LET ME ENTER ANYTHING HERE - GOES PAST } Suggestions? Thanks, G
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I am writing this program where I read in a line of text. I am able to enter the text just fine and it stores okay, but then when I go to prompt user for another entry (such as an integer) I get an infinite loop because it is waiting for a valid entry. example: cout << "please enter a string of characters."; cin.getline(tempstringgoeshere, BUFFER); int selection = 0; while(selection < 1 || selection > 5) { cout << "Please make a selection:"; cin >> selection; // DOES NOT LET ME ENTER ANYTHING HERE - GOES PAST } Suggestions? Thanks, G
Its probably because in the first getline the BUFFER is too small or the user is entering a string whose length in bigger than BUFFER.
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I am writing this program where I read in a line of text. I am able to enter the text just fine and it stores okay, but then when I go to prompt user for another entry (such as an integer) I get an infinite loop because it is waiting for a valid entry. example: cout << "please enter a string of characters."; cin.getline(tempstringgoeshere, BUFFER); int selection = 0; while(selection < 1 || selection > 5) { cout << "Please make a selection:"; cin >> selection; // DOES NOT LET ME ENTER ANYTHING HERE - GOES PAST } Suggestions? Thanks, G
I think. In this case, it will go in to loop for characters only. Might be problem with overload of
operator >>withintparameter. It is not handlingcharproperly.Prasad Notifier using ATL | Operator new[],delete[][^]
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I am writing this program where I read in a line of text. I am able to enter the text just fine and it stores okay, but then when I go to prompt user for another entry (such as an integer) I get an infinite loop because it is waiting for a valid entry. example: cout << "please enter a string of characters."; cin.getline(tempstringgoeshere, BUFFER); int selection = 0; while(selection < 1 || selection > 5) { cout << "Please make a selection:"; cin >> selection; // DOES NOT LET ME ENTER ANYTHING HERE - GOES PAST } Suggestions? Thanks, G
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I am writing this program where I read in a line of text. I am able to enter the text just fine and it stores okay, but then when I go to prompt user for another entry (such as an integer) I get an infinite loop because it is waiting for a valid entry. example: cout << "please enter a string of characters."; cin.getline(tempstringgoeshere, BUFFER); int selection = 0; while(selection < 1 || selection > 5) { cout << "Please make a selection:"; cin >> selection; // DOES NOT LET ME ENTER ANYTHING HERE - GOES PAST } Suggestions? Thanks, G
Spherelin wrote:
cin.getline(tempstringgoeshere, BUFFER);
What is the value of
BUFFERand how many characters are you entering? You'll quickly find thattempstringgoeshereis not large enough. Use astringtype instead of achartype.
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I am writing this program where I read in a line of text. I am able to enter the text just fine and it stores okay, but then when I go to prompt user for another entry (such as an integer) I get an infinite loop because it is waiting for a valid entry. example: cout << "please enter a string of characters."; cin.getline(tempstringgoeshere, BUFFER); int selection = 0; while(selection < 1 || selection > 5) { cout << "Please make a selection:"; cin >> selection; // DOES NOT LET ME ENTER ANYTHING HERE - GOES PAST } Suggestions? Thanks, G
Unless your input is an array of strings then use cin>>tempstring otherwise use cin.getline(tempstring, MAXBUFFERSIZE, '\n'); this function takes 3 parameters, and the last one is the delimiter i.e. when to signal the function to return.