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| Question |
A file a.cpp & B.cpp are complied & linked together in VC++
file a is something like int a =100;, File B is something
like extern a;
main()
{
printf("%d",a);
}what will be the output.a)100,b)linker error,c)complier
error etc etc. |
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Answer Posted By |
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Question Submitted By :: Archana |
| This Interview Question Asked @ Honeywell |
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I also faced this Question!! |
© ALL Interview .com |
| Answer | Compiler error  |
| Zerozero
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| Answer | Take an example, if you are working on a C++ project but it
also deals with some existing C functions/libraries.
You want to wrap them in a C++ module or compile them with
other C++ objects without any C++ compiler errors, then you
would declare the C function prototypes in an extern "C"
block to notify the compiler that they would be compiled
along with other C++ functions into one module.
For example:
my_C_CPP_Header.h:
#ifndef MY_C_CPP_HEADER
#define MY_C_CPP_HEADER
/*check if the compiler is of C++*/
#ifdef __cplusplus
extern "C" {
int myOtherCfunc(int arg1, int arg2); /* a C function */
}
#endif
void myCppFunction1(); /* C++ function */
void myCppFunction2(); /* C++ function */
/*check if the compiler is of C++ */
#ifdef __cplusplus
}
#endif
#endif
Now all three functions are comiled into one module by C++
compiler.
So the out put is (a)100. |
| Shankar
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| Answer | It should be compiler 1 compiler error and 1 warning
Error : Undeclared identifier
we have to include stdio.h
Warning: main should return a value; but it assume as return
type as void. |
| Ashish Chandrakar
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| Question |
what is the difference between compiling and building? |
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Answer Posted By |
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Question Submitted By :: Prakashdasari |
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I also faced this Question!! |
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| Answer | Build includes 2 things viz. Compile and then Linking.
Linker tool of the tool chain uses some linker script file
(.ld extension or some other) to link all the object files
from your code and that from library.
The compiler gives you object files from your source
files.Most of times it has .o extension. |
| Achal Ubbott
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| Question |
hi,I have applied for NIC test plz if any one have test
paper pattrn plz send me on "mn_mayank38@yahoo.co.in" |
Rank |
Answer Posted By |
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Question Submitted By :: Mayank |
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I also faced this Question!! |
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| Answer | Y U GONG 4 SUCH A F*****G ORGANIGATION.... TURN UR D AND
INSERT IN UR H**L..... |
| Jahapanah
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| Question |
What is preemption ? context switching ? |
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Answer Posted By |
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Question Submitted By :: Prabhakar S |
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I also faced this Question!! |
© ALL Interview .com |
| Answer | Preemption in computing is refered to interuption of
currently executed task by computer system or scheduler
without application's cooperation in order to be resumed
later. This process is known as context switching, when
equal time slices are assigned by pre-emptive scheduler |
| Sm
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| Answer | Pre emption is releasing the process in order to serve
another process to utilize the same resource. Context
switching is the transfer of resource from once process to
another process. |
| Telugodu
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| Answer | Preemption is when a task can be temporarily Interrupted &
expected to resumed later
Context switching is used for multi-tasking and Stores &
restores the CPU state. |
| Meena
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| Question |
Q1. A. What is unary operator? List out the different
operators involved in the unary operator.
B. What is an adjust field format flag?
Q2. A. Distinguish between a # include and #define.
B. Can a list of string be stored within a two dimensional
array?
Q3. A. Explain how a pointer to function can be declared in
C++?
B. List the merits and demerits of declaring a nested class
in
C++?
Q4. A. What are the syntactic rules to be avoid ambiguity
in multiple
inheritence?
B. Explain the operation of overloading of an assignment
operator.
Q5. A. Explain how the virtual base class is different from
the
conventional base classes of the opps.
B. Explain how an exception handler is defined and invoked
in a
Program.
Q6. A. What is a binary file? List the merits and demerits
of the binary
file usagein C++.
B. Write short notes on Text Manipulation Routines.
C. Write bites in Turbo c++ Header ("Include") Files.
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Rank |
Answer Posted By |
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Question Submitted By :: Kushiv30@gmail.com |
| This Interview Question Asked @ Infosys , ABC Company, Infosys, Hcl |
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I also faced this Question!! |
© ALL Interview .com |
| Answer | 1. A unary operator is one which has only one operand. e.g.
post/pre increment operator.
3. A function pointer is declared as following. Rarely used
int (*fp)(int);
where fp is pointer to a function with an integer as
argument and returns an integer value. |
| Achal Ubbott
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| Question |
what is use of the createWindow object |
Rank |
Answer Posted By |
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Question Submitted By :: Prateeku |
| This Interview Question Asked @ HCL |
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I also faced this Question!! |
© ALL Interview .com |
| Answer | CreateWindow() physically creates the Window in memory
based on the previousy registered WNDCLASS structure and
returns a vaild HANDLE for that Window |
| Kriba
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| Answer | I am not satisfied with that answer. |
| Prateeku
[MET] |
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| Answer | CreateWindow is a Win32 API used to create a window(
overlapped, child or main ).
While returning it sends message to WM_CREATE of the window
procedure |
| Meena
[MET] |
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