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Examples of declarations of external variables that are not definitions:
extern char stack[10];
extern int stkptr;
These declarations tell the compiler that the variables stack[] and stkptr are defined elsewhere, usually in some other file. If the keyword extern were omitted, the variables would be considered to be new ones and memory would be allocated for them. Remember, access to the same external variable defined in another file is possible only if the keyword extern is used in the declaration.
/* File : ext.c
This example shows reference to an external variable in more than one file. The program is organized in three files. The external variable 'a1' is defined in 'ext.c', and it is declared as extern in 'FILE3.c' */
List the typical functions of operating systems. Classical functions of operating system are given as: (1) Process management: A process is a program throughout execution.
The performance instrumentation states on how to efficiently gather information about the computation of the parallel computer. The process of instrumentation mainly attempts to ca
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he trick to calling script-fu-scripts from any more script is to just reference the main define for the script and not to try to use the pdb call. All the scripts in script-fu shar
What are instruction hazards? The pipeline might also be stalled because of a delay in the availability of an instruction. For instance, this may be a result of a miss in the c
(a) Consider a sinusoidal signal m(t) = A cos(2πfmt) applied to a delta modulator with step size Δ. Determine the range of the step size so that slope overload will be avoided. Ass
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DRAM consists of MOSFET's but the technique is to use the drain source capacitance to hold charge. If charge is present logic '1' is held, no charge logic '0'. As you know capacito
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