Answer Posted / ravi joshi

The following code snippet explain the use of #define and
#undef preprorcessor directives.

/* define our own value of NULL */
#ifdef NULL
#undef NULL /* if NULL is already defined, then
undefine it */
#define NULL ((void*)0) /* define our own version of NULL
#endif

The % symbol has a special use in a printf statement. How would you place this character as part of the output on the screen?

1283

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What is the purpose of the following code? Is there any problem with the code? void send(int count, short *to, short *from) { /* count > 0 assumed */ register n = (count + 7) / 8; switch (count % 8) { case 0: do { *to = *from++; case 7: *to = *from++; case 6: *to = *from++; case 5: *to = *from++; case 4: *to = *from++; case 3: *to = *from++; case 2: *to = *from++; case 1: *to = *from++; } while (--n > 0); } }

2505

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What is structure padding in c?

1136

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In this problem you are to write a program that will cut some number of prime numbers from the list of prime numbers between 1 and N.Your program will read in a number N; determine the list of prime numbers between 1 and N; and print the C*2 prime numbers from the center of the list if there are an even number of prime numbers or (C*2)-1 prime numbers from the center of the list if there are an odd number of prime numbers in the list.

1855

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Array is an lvalue or not?

1130

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Explain About fork()?

1121

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What is multidimensional arrays

1130

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What are the different types of linkage exist in c?

1035

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Explain what is a 'null pointer assignment' error? Explain what are bus errors, memory faults, and core dumps?

1109

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What are examples of structures?

1116

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What does double pointer mean in c?

1187

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Are there namespaces in c?

1133

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What is the general form of function in c?

1022

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What is a pointer in c plus plus?

1311

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Are pointers really faster than arrays?

1033

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