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#1
May 5th, 2005, 10:28 PM
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using eof twice with same file
i was testing something out and used eof twice with the same txt file.
so means i open the txt file, use a loop to read all data inside the txt with eof. then i close the loop and use eof again with the same txt. but this time it will return nothing (i.e if i ask it to output something, nothing comes out). Is the because in the first loop, i already ended reading the file, so the 2nd time it just has nothing to read?
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#2
May 5th, 2005, 11:52 PM
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Quote:
yes it is.
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#4
May 6th, 2005, 10:44 AM
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Quote:
Reset your reading pointer back to the start of the file.
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#5
May 7th, 2005, 04:47 AM
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you could just use fread() and see what value it returns, if it's 0, then that means there was nothing for it to read (meaning you're at an EOF condition)....
__________________
Officially a member of the Itsacon fan club. Beer blasts are every friday at Viper_SB's house. I bring the chips. 
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#6
May 7th, 2005, 05:53 PM
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B-Con, that doesn't solve his problem. That approach would also only work once. What you need to do is something like:
Code:
#include <fstream>
using std::ifstream;
int main()
{
ifstream infile("c:\\file.txt");
char c;
while (c = infile.get() != EOF)
{
//process character
}
infile.seekg(0, ios::beg); //reset reading pointer back to beginning of file
while (c = infile.get() != EOF)
{
//process character again
}
infile.close();
}
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#7
May 8th, 2005, 06:03 PM
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Quote:
my bad, I didn't understand the question.... 
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