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Fundamentals of Computer Programming and IT by Pearson
book

Fundamentals of Computer Programming and IT by Pearson

by Ashok Namdev Kamthane, Rohit Khurana
May 2024
Intermediate to advanced content levelIntermediate to advanced
577 pages
22h 34m
English
Pearson India
Content preview from Fundamentals of Computer Programming and IT by Pearson
508 Fundamentals of Computer Programming and IT
ios::operator void *()
{
return fail() ? 0 : this;
}
The abov
e function converts an ifstream object into a void pointer. It also invokes ios::fail ()
function, which is as follows:
int fail ()
{
return & (failbit | badbit | hardfail):
}
The above function returns non-zero file when end of file is not encountered. The function returns address
of object using this pointer. Zero is returned when end of file is reached. The while or if statement
checks whether the value is zero or non-zero (address of object ). Here, zero means false and non-zero means
true. The details of the above functions are discussed ...
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Publisher Resources

ISBN: 9781299447479