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IBM C Interview Questions
Questions Answers Views Company eMail

What are Storage Classes in C ?

32 115826

WHAT IS THE DIFFERENCE BETWEEN malloc() and calloc() in c file management?

28 80049

How do I declare a pointer to an array?

6 11914

Result of the following program is main() { int i=0; for(i=0;i<20;i++) { switch(i) case 0:i+=5; case 1:i+=2; case 5:i+=5; default i+=4; break;} printf("%d,",i); } } a)0,5,9,13,17 b)5,9,13,17 c)12,17,22 d)16,21 e)syntax error

8 27040

What is the result main() { char c=-64; int i=-32 unsigned int u =-16; if(c>i){ printf("pass1,"); if(c 9 18150


what will the following program do? void main() { int i; char a[]="String"; char *p="New Sring"; char *Temp; Temp=a; a=malloc(strlen(p) + 1); strcpy(a,p); //Line no:9// p = malloc(strlen(Temp) + 1); strcpy(p,Temp); printf("(%s, %s)",a,p); free(p); free(a); } //Line no 15// a) Swap contents of p & a and print:(New string, string) b) Generate compilation error in line number 8 c) Generate compilation error in line number 5 d) Generate compilation error in line number 7 e) Generate compilation error in line number 1

1 7601

In the following code segment what will be the result of the function, value of x , value of y { unsigned int x=-1; int y; y = ~0; if(x == y) printf("same"); else printf("not same"); } a) same, MAXINT, -1 b) not same, MAXINT, -MAXINT c) same , MAXUNIT, -1 d) same, MAXUNIT, MAXUNIT e) not same, MAXINT, MAXUNIT

1 7123

what will be the result of the following program ? char *gxxx() { static char xxx[1024]; return xxx; } main() { char *g="string"; strcpy(gxxx(),g); g = gxxx(); strcpy(g,"oldstring"); printf("The string is : %s",gxxx()); } a) The string is : string b) The string is :Oldstring c) Run time error/Core dump d) Syntax error during compilation e) None of these

2 10259

What will be result of the following program? void myalloc(char *x, int n) { x= (char *)malloc(n*sizeof(char)); memset(x,\0,n*sizeof(char)); } main() { char *g="String"; myalloc(g,20); strcpy(g,"Oldstring"); printf("The string is %s",g); } a) The string is : String b) Run time error/Core dump c) The string is : Oldstring d) Syntax error during compilation e) None of these

3 7509

What will be the result of the following program? main() { char p[]="String"; int x=0; if(p=="String") { printf("Pass 1"); if(p[sizeof(p)-2]=='g') printf("Pass 2"); else printf("Fail 2"); } else { printf("Fail 1"); if(p[sizeof(p)-2]=='g') printf("Pass 2"); else printf("Fail 2"); } } a) Pass 1, Pass 2 b) Fail 1, Fail 2 c) Pass 1, Fail 2 d) Fail 1, Pass 2 e) syntax error during compilation

10 11635

how to convert binary to decimal and decimal to binary in C lanaguage

7 25644

How to use c/c++ code in JAVA

10 18385

how many header file is in C language ?

44 69830

When do you say that a digraph is acyclic A)if and only if its first search does not have back arcs B)a digraph is acyclic if and only if its first search does not have back vertices C)if and only if its first search does not have same dfnumber D)None of these

1 4779

what is difference between ++(*p) and (*p)++

17 24397

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IBM C Interview Questions


Un-Answered Questions

why does the most of civil engg is not intersted to going for teaching field?

1610


Which command will print your home directory on screen?

540


State differences between MVC and WebAPI

602


How to strip whitespace (or other characters) from the beginning and end of a string?

468


HOW TO CALCULATE CAPACITOR BANK OR HARMONIC FILTER CALCULATION

1784






What is a good set of naming conventions to use when developing on the force.com platform?

189


how is one able to tell the unlock code for the mobile phone using the imei

1560


How the keyword struct is different from the keyword class in c++?

578


Classes and structs can be declared as static, is this statement true or false?

549


What do I do if I forgot my mysql root password?

476


a single linked list consists of nodes a to z .print the nodes in reverse order from z to a using recursion

2330


If my ip address seems to be wrong, how can that be?

638


What objects support tranformations? What are the transformations that silverlight supports for the elements?

1


What is interrupt latency and how can we decrease it?

441


How to calibrate RC Feeder system in thermal power station?,If any instrument available to calibrate it,ple inform me. make:stock,

2718