Pregunta
The putback member function returns to the
input stream the previous character obtained
by:
Using the stream extraction operator on the
input stream.
Reading a file from disk.
A get from the input stream.
Reading input from the keyboard.
input stream the previous character obtained
by:
Using the stream extraction operator on the
input stream.
Reading a file from disk.
A get from the input stream.
Reading input from the keyboard.
Ask by Simpson Moran. in the United States
Mar 22,2025
Solución de inteligencia artificial de Upstudy
Respuesta verificada por el tutor
Responder
The putback function returns the previous character obtained by a get from the input stream.
Solución
- The putback member function is used to place a character back into the input stream.
- Typically, the character that is put back is one that was obtained by using the get function, not by using the stream extraction operator.
- Therefore, the correct answer is that it returns to the input stream the previous character obtained by
.
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Simplifique esta solución The Deep Dive
The putback member function is a little magician when it comes to input streams! It allows you to “put back” characters that you’ve already read from the stream, which is super handy when you accidentally extract more than you intended. This can help maintain flow in your program without losing any important data from the input source.
In practical terms, using the putback function can be a lifesaver in parsing situations, like reading formatted data or processing commands. For example, if you read a type indicator and then realize you need to check the input again due to a logical error, putback lets you rewind and reconsider, ensuring smoother and more robust input handling in your application!
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