Taking in a double - space between symbol and number.
Hello, while taking a number to double,
If I type in -1 , a gets the value -1.
But if I type - 1 , a gets the value 0. (Notice space between - and 1).
I know how to fix this by accepting a char, check if number or symbol, ignore spaces and then take in the number, but is there a more elegant way to fix this?
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If I type in -1 , a gets the value -1.
But if I type - 1 , a gets the value 0. (Notice space between - and 1).
I know how to fix this by accepting a char, check if number or symbol, ignore spaces and then take in the number, but is there a more elegant way to fix this?
Last edited on
Hi,
Can you read the input as a string, then remove spaces, then convert the value using stringstream? http://en.cppreference.com/w/cpp/io/basic_istream/operator_gtgt
I would avoid reading char by char, there are various formats for double, might as well get the system to work for you.
Edit:
If you are aware of a particular format, you can use stringstream to process that format.
Someone else is bound to have an even better way ..... :+)
Can you read the input as a string, then remove spaces, then convert the value using stringstream? http://en.cppreference.com/w/cpp/io/basic_istream/operator_gtgt
I would avoid reading char by char, there are various formats for double, might as well get the system to work for you.
Edit:
If you are aware of a particular format, you can use stringstream to process that format.
Someone else is bound to have an even better way ..... :+)
Last edited on
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