Title: Technical - C Section Post by: Tanya on June 07, 2007, 09:51:22 PM Technical - C Section 1.while((*p++=*q++)!=0){} is equal to 2.the function strcmp(str1,str2) returns 3. int *x(); means 4.#define PRINT(int) printf("int=%d",int); main() { int x,y,z; x=03;y=-1;z=01; PRINT(x^x); z<<=3;PRINT(x); y>>=3;PRINT(y); } 5. struct list{ int x; struct list *next; }*head; the struct head.x =100 above is correct / wrong 6. '-'=45 '/'=47 printfr(%d/n,'-','-','-','-','/','/','/'); o/p =? 12.o/p=? int i; i=1; i=i+2*i++; printf(%d,i); 8.{ ch='A'; while(ch<='F'){ switch(ch){ case'A':case'B':case'C':case'D':ch++;continue; case'E':case'F':ch++; } putchar(ch); } } a. ABCDEF b. EFG c. FG d. error 9. FILE *fp1,*fp2; fp1=fopen("one","w") fp2=fopen("one","w") fputc('A',fp1) fputc('B',fp2) fclose(fp1) fclose(fp2)} 10. int a=1; b=2; c=3; *pointer; pointer=&c; a=c/*pointer; b=c; printf("a=%d b=%d",a,b); a. a=1 b=3 b a=3 b=3 c 3 2 d. error 11.#include<malloc.h> char *f() { char *s=malloc(8); strcpy(s,"goodbye") } main() { char *f()_; printf("%c",*f()='A'); } o/p=? 13. int sum(n) int n; if(n<1)return n; else return(n+sum(n-1)) a 10 b 16 c 14 d 15 14. when a function is recursively called all , automatic variables are a. stored in stack b . c. d 15) #define MAN(x,y) (x)>(y)?(x):(y) { int i=10;j=5;k=0; k= MAN(i++,++j) printf(%d %d %d %d,i,j,k) } 16) a=10;b=5; c=3;d=3; if(a<b)&&(c=d++) printf(%d %d %d %d a,b,c,d) else printf("%d %d %d %d a,b,c,d); 17. what is o/p #include<stdarg.h> show(int t,va_list ptr1) { int a,x,i; a=va_arg(ptr1,int) printf("n %d",a) } display(char) {int x; listptr; va_star(otr,s); n=va_arg(ptr,int); show(x,ptr); } main() { display("hello",4,12,13,14,44); } a) 13 b) 12 c) 44 d) 14 18. if the following program (my prog) main(int size of ,char *arg) { while(size of arg) printf("%s",arg[--size of arg) } is run from the command line as myprog jan feb mar apr what would be the o/p a)myprog jan,feb,mar,apr b)rev c)jan,feb,mar,apr d)error 19.what is o/p main() {int i=3; while(i--) { int i=100 i--; printf("%d..",i); } } a) infinite loop b) error c) 99..99..99..99 d) 3..22..1.. 20)what is the o/p of the program main() { int rows=3,colums=4; int a[rows][colums]={1,2,3,4,5,6,7,8,9,10,11,12}; i=j=k=99; for(i=0;i<rows;i++) for(j=0;j<colums;j++) if(a[k][j]<k) k=a[j]; printf("%dn",k); |