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Access out of range

suppose OneLineText is a string

Don't forget to check the index or it could be out of range! Lenthg checking must performe at first rather than access the char in the string or the string will be also out of range!

The following will be out of range because it may acces the character out of the rang before it check the boundary.
=============================================
while( isalpha( OneLineText.at( i ) ) && ( i LengthOfText ) )
{
i++ ;
}//end while
==================================...[ 查看全文 ]

2016-02-19 标签:

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