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IBM C Interview Questions
Questions Answers Views Company eMail

What are Storage Classes in C ?

32 101196

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

28 71026

How do I declare a pointer to an array?

6 9317

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 16232

What is the result main() { char c=-64; int i=-32 unsigned int u =-16; if(c>i){ printf("pass1,"); if(c 9 9943






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 4980

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 5311

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 4792

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 5663

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 8027

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

7 22731

How to use c/c++ code in JAVA

10 15050

how many header file is in C language ?

43 55513

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 3536

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

17 16150

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IBM C Interview Questions


Un-Answered Questions

I have developed and executed a script successfully, and saved the same to QC. When I tried to execute the script from QC, the script is not executing. What are the possible reasons?”

146


How do you find out what client machine is making a request to your servlet

108


What is awk in shell script?

97


What are normal margins?

17


How do I copy and paste conditional formatting?

11






What does theme mean in powerpoint?

25


Does windows xp work anymore?

72


Are the imports checked for validity at compile time? Will the code containing an import such as java.lang.abcd compile?

99


Do you have any idea about various codes used in banking industry?

154


Why is python slower than c?

77


What is a Bill of Lading?

159


How many classes can any class inherit java?

82


what is cyclon vibration effect in turbine

1064


What are plugins/mambots?

17


service tax calculated on agreement value or market value whichver is higher for builders?

1451