Lvalue and Rvalue

[LouanneT01]

plz anyone can tell me……how can we produce an error like lvalue and rvalue required.
basically lvalue stands for left value and rvalue for right value.
but i am unable to bring these errors in my programs….

[GWILouisaxwzkla]

An L-value violation is easy , just put a constant on the left hand side of an equation:

<br /> const int myInt = 9;<br /> <br /> ..<br /> myInt = 3; // need an L-value here<br /> <br />

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<br /> const int myInt = 9;<br /> <br /> ..<br /> myInt = 3; // need an L-value here<br /> <br />

You need something that is assignable for a L-value. R-value violations are tougher , I’ll have to look into this…….

[LouanneT01]

hello sir,
so u have changed ur name from cman to dman…..
actually i know about LVALUE concept,but i m still alien about RVALUE.
please find it somewhere and reply…..

also i have posted a problem for “program without header files”…please reply on that too.

thanks for replying.
napster14

[GWILouisaxwzkla]

For an R-value violation you could do this:

<br /> void func ( int i );<br /> <br /> int main()<br /> {<br /> int i = func ( 3 );<br /> <br /> }<br /> <br />

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<br /> void func ( int i );<br /> <br /> int main()<br /> {<br /> int i = func ( 3 );<br /> <br /> }<br /> <br />

pretty sure that would constitute a R-value violation…….

[LouanneT01]

thank you for both the answers…..
i’ll try them.

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