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shabbir

Quote:

Originally Posted by AHMAD
How Are You

Don't you think that should not be in this thread.

PythonNewbie

Can you please mail me the answers at mpolyadis@gmail.com
Thank you very much , in advance for your reply .......

wrecker

No dude, i still think that the answer is (1). Go and Google. Ya, although different compilers would use different identifier rules.

fengxueye

Please send me the answers for these questions
fengxueye@hotmail.com

Thanks

JamC

Question #10

Code:

int a=10,b;
b=a++ + ++a;
printf("%d,%d,%d,%d",b,a++,a,++a);

Hmm, this is undefined- suprised nobody caught this

Question 97

Code:

int m = -14; 
int n = 6; 
int o; 
o = m % ++n; 
n += m++ - o; 
m <<= (o ^ n) & 3;

If one of the operands is negative, the sign of the result is machine dependent...

psapikas

Hello, could u please explain to me the solution of questions #44, #51 and #91?
Thanks in advance

shabbir

Here comes the explanation to your questions:
Question #44
increment( i ) is a local function and the value of i that is incremented inside the function will not be reflected in the main function and so the loop will never end because the loop variable is not changed.
Question #51
The condition is tested and then the loop breaks giving you the value as 5 outside the loop.
Question #91
Static variables are stored in heap and preserve the value for the execution of the program and so it does not reset for each function call where as other variable are allocated in the stack which gets destroyed when the function returns.

psapikas

Thanks for your answers

ec_ashish

Please send me the answers for these questions at ec.ashish@gmail.com

sudheer157

can some one please tell me the answer for this Q?
Thanks in advance..

* sys/cdef.h */
#if defined(__STDC__) || defined(__cplusplus)
#define __P(protos) protos
#else
#define __P(protos) ()
#endif
/* stdio.h */
#include <sys/cdefs.h>
div_t div __P((int, int));
The code above comes from header files for the FreeBSD implementation of the C library. What is the primary purpose of the __P() macro?
Choice 1
The __P() macro has no function, and merely obfuscates library function declarations. It should be removed from further releases of the C library.
Choice 2
The __P() macro provides forward compatibility for C++ compilers, which do not recognize Standard C prototypes.
Choice 3
Identifiers that begin with two underscores are reserved for C library implementations. It is impossible to determine the purpose of the macro from the context given.
Choice 4
The __P() macro provides backward compatibility for K&R C compilers, which do not recognize Standard C prototypes.
Choice 5
The __P() macro serves primarily to differentiate library functions from application-specific functions.

shabbir Go4Expert Founder
13Jun2007,08:50	#21
	Quote: Originally Posted by AHMAD How Are You Don't you think that should not be in this thread.

PythonNewbie Newbie Member
25Jun2007,14:10	#22
	Can you please mail me the answers at mpolyadis@gmail.com Thank you very much , in advance for your reply .......

wrecker Go4Expert Member
30Jun2007,18:42	#23
	No dude, i still think that the answer is (1). Go and Google. Ya, although different compilers would use different identifier rules.

fengxueye Newbie Member
2Jul2007,22:08	#24
	Please send me the answers for these questions fengxueye@hotmail.com Thanks

JamC Light Poster
29Jul2007,10:48	#25
	Question #10 Code: int a=10,b; b=a++ + ++a; printf("%d,%d,%d,%d",b,a++,a,++a); Hmm, this is undefined- suprised nobody caught this Question 97 Code: int m = -14; int n = 6; int o; o = m % ++n; n += m++ - o; m <<= (o ^ n) & 3; If one of the operands is negative, the sign of the result is machine dependent...

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psapikas Light Poster
1Aug2007,13:12	#26
	Hello, could u please explain to me the solution of questions #44, #51 and #91? Thanks in advance

shabbir Go4Expert Founder
1Aug2007,14:04	#27
	Here comes the explanation to your questions: Question #44 increment( i ) is a local function and the value of i that is incremented inside the function will not be reflected in the main function and so the loop will never end because the loop variable is not changed. Question #51 The condition is tested and then the loop breaks giving you the value as 5 outside the loop. Question #91 Static variables are stored in heap and preserve the value for the execution of the program and so it does not reset for each function call where as other variable are allocated in the stack which gets destroyed when the function returns.

psapikas Light Poster
1Aug2007,17:07	#28
	Thanks for your answers

ec_ashish Newbie Member
21Aug2007,19:03	#29
	Please send me the answers for these questions at ec.ashish@gmail.com

sudheer157 Go4Expert Member
22Aug2007,21:35	#30
	can some one please tell me the answer for this Q? Thanks in advance.. * sys/cdef.h / #if defined(__STDC__) \|\| defined(__cplusplus) #define __P(protos) protos #else #define __P(protos) () #endif / stdio.h */ #include <sys/cdefs.h> div_t div __P((int, int)); The code above comes from header files for the FreeBSD implementation of the C library. What is the primary purpose of the __P() macro? Choice 1 The __P() macro has no function, and merely obfuscates library function declarations. It should be removed from further releases of the C library. Choice 2 The __P() macro provides forward compatibility for C++ compilers, which do not recognize Standard C prototypes. Choice 3 Identifiers that begin with two underscores are reserved for C library implementations. It is impossible to determine the purpose of the macro from the context given. Choice 4 The __P() macro provides backward compatibility for K&R C compilers, which do not recognize Standard C prototypes. Choice 5 The __P() macro serves primarily to differentiate library functions from application-specific functions.

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