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C Interview Questions & Answers

Below we have listed all the C Interview Questions and answers. Feel free to comment on any C Interview Questions or answer by the comment feature available on the page.

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Subcategories for C Interview Questions - The following are sub categories for which Interview Questions are available under this category. Please select the appropriate sub-category:
Arrays in C Interview Questions (21)

Branches & Loops in C Interview Questions (25)

C Basics Interview Questions (124)

Dynamic Memory Allocation in C Interview Questions (21)

File Operations in C Interview Questions (19)

Functions in C Interview Questions (59)

Operators in C Interview Questions (23)

Pointers in C Interview Questions (52)

Strings in C Interview Questions (33)

Structures in C Interview Questions (40)

Variables in C Interview Questions (41)

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main() { int c = 5; printf("%d", main||c); } View Answer

main() { int i; clrscr(); for(i=0;i<5;i++) { printf("%dn", 1L << i); } } View Answer

main() { signed int bit=512, mBit; { mBit = ~bit; bit = bit & ~bit ; printf("%d %d", bit, mBit); } } View Answer

Can we have nested header files in C? View Answer

main() { char c; int i = 456; clrscr(); c = i; printf("%d", c); } View Answer

What is a default TCP/IP socket assigned for SQL Server? View Answer

How to find size of an datatype without using sizeof operator? View Answer

When should the register modifier be used? Does it really help? View Answer

If the following program (myprog) is run from the command line as myprog friday tuesday sunday, What would be the output? main(int argc, char *argv[]) { printf("%c",*++argv[1]); } View Answer

Write a program which accepts a filename as a command line argument and reverses the contents of the file( ie first character becomes the last character of the file and so on) Input: The program takes the file name whose content should be reversed. Output: The program reverses the contents of the file. View Answer

Can there be a mouse click and drag function used in c? View Answer

main() { printf("%d, %d", sizeof('c'), sizeof(100)); } View Answer

How to reduce a final size of executable ? View Answer

Write a program to remove comment lines and blank lines from an error free c program. View Answer

In the following code, in which order the functions would be called? x = f1(23,14)*f2(12/4)+f3(); a) f1, f2, f3 b) f3, f2, f1 c) The order may vary from compiler to compiler d) None of the above View Answer

#define SQR(x) x * x main() { printf("%d", 225/SQR(15)); } View Answer

main() { int i, j, *p; i = 25; j = 100; p = &i; // Address of i is assigned to pointer p printf("%f", i/(*p) ); // i is divided by pointer p } View Answer

void main () { int x = 10; printf ("x = %d, y = %d", x,--x++); } View Answer

When should a type cast be used? View Answer

Write a C program that will convert Simple Sentence to Complex/Compound Sentence. View Answer

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