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File handling
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Originally Posted by seemant_sun 
void openfile(char *,FILE**)
what does double stars indicates
Didn't you understand what's a pointer?
Evidently this function returns FILE* pointer via this argument. What's a strange perversion...
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Join Date: Nov 2005
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Posting Whiz in Training
Well, it has one advantage over a return value -- you have to pass in an address, whereas you could ignore a return value. 
I don't think that's how I would write it, though.
I don't think that's how I would write it, though. dwk
Seek and ye shall find.
"Only those who will risk going too far can possibly find out how far one can go."
-- TS Eliot.
"I have not failed. I've just found 10,000 ways that won't work."
-- Thomas Alva Edison
"The only real mistake is the one from which we learn nothing."
-- John Powell
Seek and ye shall find.
"Only those who will risk going too far can possibly find out how far one can go."
-- TS Eliot.
"I have not failed. I've just found 10,000 ways that won't work."
-- Thomas Alva Edison
"The only real mistake is the one from which we learn nothing."
-- John Powell
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Join Date: Aug 2005
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>>you have to pass in an address
Not if you pass NULL.
Not if you pass NULL.
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Join Date: Oct 2008
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How many times a pointer operator can appear with pointer to pointer declaration.
Is there any limit imposed by ANSI?
C Syntax (Toggle Plain Text)
That's it:
(256 in C++)
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5.2.4.1 Translation limits
1 The implementation shall be able to translate and execute at least one program that contains at least one instance of every one of the following limits:
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- 12 pointer, array, and function declarators (in any combinations) modifying an arithmetic, structure, union, or incomplete type in a declaration
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Implementations should avoid imposing fixed translation limits whenever possible.
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Posting Pro in Training
Isn't 16 *'s maximum in C ???
I mean that *p,**p,***p.....
I mean that *p,**p,***p.....
Last edited by csurfer; Jun 9th, 2009 at 10:49 pm.
I Surf in "C"....
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With VC++ 2008 Express, compiling a C program, I was able to compile
Interestingly, as a c++ program I was able to give it about 920 stars before the compiler crapped out -- then it was during the link stage, not the compile stage.
char*(500 stars) ptr = "Hello"; before the parser complained. And then the error message was "parser stack overflow, program too complex"Interestingly, as a c++ program I was able to give it about 920 stars before the compiler crapped out -- then it was during the link stage, not the compile stage.
Last edited by Ancient Dragon; Jun 9th, 2009 at 11:18 pm.
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