memory segments in c

[narendra jain]

how can we define the memory segments in C.
and how many segments are there available in C
where local and global variable stored...?

[Banfa]

Strictly there are no memory segments in C since C is platform independent and memory segments are dependent on the platform.

However on the whole (i.e. in most cases) you have the following memory segments

code or text - carrying the program code
bss - carrying uninitialised or 0 initialised global variables
data - carrying initialised global variables
rodata - some platforms have a read only data segment and if they have it they can often put it into physically read only memory
stack - carrying all local variables, function parameters and processor state normally in stack frames
heap - the segment reserved to meet malloc allocations

Note that, confusingly, in some contexts the data segment refers to everything that is not the text segment.