OK this is really simple but I can't think what is the best
and most elegant solution.
Say I am getting an int from an ifstream as follows:
int val;
inFile.get(rein terpret_cast<ch ar*>(&val), sizeof(val));
How do I know if this succeeded? It only returns false if
the eof is at the end of the int.
11  2502 
"flips" <fl***@flops.co mm> wrote in message
news:bp******** **@news.freedom 2surf.net... OK this is really simple but I can't think what is the best
and most elegant solution.
Say I am getting an int from an ifstream as follows:
int val;
inFile.get(rein terpret_cast<ch ar*>(&val), sizeof(val));
How do I know if this succeeded? It only returns false if
the eof is at the end of the int.
if(!inFile && !inFile.eof())
/* error */
-Mike
Are you mad?
"Mike Wahler" <mk******@mkwah ler.net> wrote in message
news:eA******** **********@news read1.news.pas. earthlink.net.. .
"flips" <fl***@flops.co mm> wrote in message
news:bp******** **@news.freedom 2surf.net... OK this is really simple but I can't think what is the best
and most elegant solution.
Say I am getting an int from an ifstream as follows:
int val;
inFile.get(rein terpret_cast<ch ar*>(&val), sizeof(val));
How do I know if this succeeded? It only returns false if
the eof is at the end of the int.
if(!inFile && !inFile.eof())
/* error */
-Mike
"flips" <fl***@flops.co mm> wrote in message
news:bp******** **@news.freedom 2surf.net... Are you mad?
Not at all. If what I wrote doesn't help,
perhaps you should express your problem more
clearly.
BTW Please don't top post.
-Mike
"Mike Wahler" <mk******@mkwah ler.net> wrote:
if(!inFile && !inFile.eof())
/* error */
You clearly must have meant:
if(!inFile || inFile.eof())
/* error */
What you wrote isn't meaningful...
(If "!inFile" is true then "!inFile.eo f()" willl yield a null pointer
exception!)
/Andreas
"Andreas Kirkeskov Carlsen" <ak*@daimi.au.d k> wrote in message
news:bp******** **@news.net.uni-c.dk... "Mike Wahler" <mk******@mkwah ler.net> wrote:
if(!inFile && !inFile.eof())
/* error */
You clearly must have meant:
if(!inFile || inFile.eof())
/* error */
What you wrote isn't meaningful...
(If "!inFile" is true then "!inFile.eo f()" willl yield a null pointer
exception!)
!?!?!
Null pointer exception? inFile isn't even a pointer.
if(!inFile && !inFile.eof())
/* error */
why do you type (!inFile && !inFile.eof())
I do not understand the purpose of (!inFile)
I thought that (!inFile.eof()) is enough
"TaiwanNoWh ere" <ta***********@ netscape.net> wrote in message
news:16******** *************** ***@posting.goo gle.com... if(!inFile && !inFile.eof())
/* error */
why do you type (!inFile && !inFile.eof())
I do not understand the purpose of (!inFile)
I thought that (!inFile.eof()) is enough
Quite.
Anyway, the point of my original post was that, if the file is
say 3 bytes long, and I read 4 (to read an int), no error occurs.
inFile is true AND inFile.eof() is false.
Is this the same on other people's compilers? Perhaps I need
to update the verion of STL I'm using.
"flips" <fl***@flops.co mm> wrote in message
news:bp******** **@news.freedom 2surf.net... "TaiwanNoWh ere" <ta***********@ netscape.net> wrote in message
news:16******** *************** ***@posting.goo gle.com... if(!inFile && !inFile.eof())
/* error */
why do you type (!inFile && !inFile.eof())
I do not understand the purpose of (!inFile)
I thought that (!inFile.eof()) is enough
Quite.
Anyway, the point of my original post was that, if the file is
say 3 bytes long, and I read 4 (to read an int), no error occurs.
inFile is true AND inFile.eof() is false.
Is this the same on other people's compilers? Perhaps I need
to update the verion of STL I'm using.
Have you tried inFile.good()?
Tom
flips escribió: Anyway, the point of my original post was that, if the file is
say 3 bytes long, and I read 4 (to read an int), no error occurs.
inFile is true AND inFile.eof() is false.
inFile.gcount () tell you the number of char readed.
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