[algogeeks] pre-post decrement
main()
{
int i=10;
int z;
z=--i--;
}
this gives an lvalue required error ,what i want to know is when the post
decrement gets executed then whether the expression should be --i or --10,as
it is --10 thats y its givin lvalue required error but y is it so as if we
increment or decrement using post or pre operator variable is updated not it
is replaced by value.???
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Re: [algogeeks] pre-post decrement
@nitin no increment or decrement operation on constant value..It's
invalid:)
On Mon, Aug 8, 2011 at 10:47 PM, Nitin coolguyinat...@gmail.com wrote:
main()
{
int i=10;
int z;
z=--i--;
}
this gives an lvalue required error ,what i want to know is when the post
decrement gets executed then whether the expression should be --i or --10,as
it is --10 thats y its givin lvalue required error but y is it so as if we
increment or decrement using post or pre operator variable is updated not it
is replaced by value.???
--
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Anil Kumar Arya
B.Tech III year
computer science engineering
M.N.N.I.T Allahabad.
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Re: [algogeeks] pre-post decrement
increment or decrement operators basically increment values and assigns the
value to a variable.so it expects a variable on the left hand side.so since
constants cannot be placed on left hand side it reports lvalue error
On Mon, Aug 8, 2011 at 11:12 PM, Anil Arya anilarya...@gmail.com wrote:
@nitin no increment or decrement operation on constant value..It's
invalid:)
On Mon, Aug 8, 2011 at 10:47 PM, Nitin coolguyinat...@gmail.com wrote:
main()
{
int i=10;
int z;
z=--i--;
}
this gives an lvalue required error ,what i want to know is when the post
decrement gets executed then whether the expression should be --i or --10,as
it is --10 thats y its givin lvalue required error but y is it so as if we
increment or decrement using post or pre operator variable is updated not it
is replaced by value.???
--
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Anil Kumar Arya
B.Tech III year
computer science engineering
M.N.N.I.T Allahabad.
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Re: [algogeeks] pre-post decrement
as i think -- op has right to left assocoativity so --(i--) so i-- will take palce 1st so aftr ; it'll b 9 so no dectement op for const thats y it is giving lvalue error -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] pre-post decrement
@jagrati so why it works fine z=(--i)--; -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] pre-post decrement
it'll also give lvalue.. On Mon, Aug 8, 2011 at 11:31 PM, raj kumar megamonste...@gmail.com wrote: @jagrati so why it works fine z=(--i)--; -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] pre-post decrement
it's running fine on my machine you can check z=(--i)--; even this works fine z=(--i)++; -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] pre-post decrement
i think the order of evaluation of such expressions is not defined in standard c say for ex the expression printf(%d,i+i) doesnt work in linux but works fine in windows On Mon, Aug 8, 2011 at 11:38 PM, raj kumar megamonste...@gmail.com wrote: it's running fine on my machine you can check z=(--i)--; even this works fine z=(--i)++; -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] pre-post decrement
i m using redhat n it is giving lvalue... On Mon, Aug 8, 2011 at 11:38 PM, raj kumar megamonste...@gmail.com wrote: it's running fine on my machine you can check z=(--i)--; even this works fine z=(--i)++; -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] pre-post decrement
May be The increment/decrement operators needs to update the operand after the sequence point http://en.wikipedia.org/wiki/Sequence_point, so they need an L-value. The unary operators such as -, +, won’t need L-value as operand. The expression *-(++i)* is valid .see this page and you will understand the pont http://geeksforgeeks.org/?p=9380 thanks -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
Re: [algogeeks] pre-post decrement
nice one On Mon, Aug 8, 2011 at 11:51 PM, raj kumar megamonste...@gmail.com wrote: May be The increment/decrement operators needs to update the operand after the sequence point http://en.wikipedia.org/wiki/Sequence_point, so they need an L-value. The unary operators such as -, +, won’t need L-value as operand. The expression *-(++i)* is valid .see this page and you will understand the pont http://geeksforgeeks.org/?p=9380 thanks -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en. -- You received this message because you are subscribed to the Google Groups Algorithm Geeks group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
