What is external and internal variables
What is dynamic memory allocation
what is storage classes in C
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Answer Posted / ravi saini
External variable -- Variable that one going to be access
from another source file.Have life cycle for complete project.
Internal variable -- variable that one have the life cycle
for the particular block.
Dynamic memory allocation --Allocation of memory during RUN
time.
Storage Class --
Automatic : by default
Register : Use to access registers of CPU.If register is not
free than work as automatic.
Static : Have life cycle for whole project but access only
with in the initialized function block.Once initialized.
extern : above
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