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IBM C Interview Questions
Questions Answers Views Company eMail

What are Storage Classes in C ?

32 106085

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

28 74000

How do I declare a pointer to an array?

6 10121

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 18571

What is the result main() { char c=-64; int i=-32 unsigned int u =-16; if(c>i){ printf("pass1,"); if(c 9 13770






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 6054

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 6203

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 6922

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 6205

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 9084

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

7 23599

How to use c/c++ code in JAVA

10 16036

how many header file is in C language ?

43 59608

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 3989

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

17 18430

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IBM C Interview Questions


Un-Answered Questions

What are the methods useful for method overloading?

248


How media files can be inserted into the wordpress site?

43


Explain me what are the main advantages of selenium?

216


hi friends kumar here if anybody of u have " INDRAPRASTHA GAS LIMITED" placement papers than plz send it to me i need it urgently..ok mail id is ashish_me2007@yahoo.co.in

2778


What is the procedure of data storage in cassandra?

30






What are testing techniques? What is difference between general and specific?

1208


Tell us how do bias and variance play out in machine learning?

56


What is the difference between hashset and hashmap?

231


How to enable decorators in typescript via command line?

1


What is the use of ‘info update’ indicator in purchasing documents?

324


What are ansible vaults and why are they used?

1


How can light be defined in simplest form?

244


What is Transactional based Application & Role based Application?

599


What are the advantages of pom?

266


What are the benefits of quick test pro(qtp)?

279