global variables.

does always global variables are initialised to 0?
if not how to initialise an array to zero value in the global..

Yes, global variables are initialized to zero (even static variabels).

Quote:

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Originally Posted by vapanchamukhi

does always global variables are initialised to 0?
if not how to initialise an array to zero value in the global..

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Yes, global variables (and *only* global variables) are guaranteed to be initialized to 0. But global variables are evil... ;) Do without them if you can

QuantumPete

Pedantics:
As patil states, global variables and static variables (they are global in all aspects except for where they are visible) are initialized to zero if they are not otherwise initialized.

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Mats

then what is the difference between bss and initialised segments?

Quote:

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Originally Posted by vapanchamukhi

then what is the difference between bss and initialised segments?

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What do you think it is? Does the term "intialised" mean something to you?

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Mats