Answer / susie

Answer :

Variable length argument lists

Answer / sagar arora

variable length argument lists,for more information checked
out in Dennis Ritchie book.u can write ur own printf.

Answer / navneet

using Variable length argument lists :
Let us see how

Use vprintf, vfprintf, or vsprintf.

Here is an "error" routine which prints an error message, preceded by the string "error: " and terminated with a newline:

#include <stdio.h>
#include <stdarg.h>

void
error(char *fmt, ...)
{
va_list argp;
fprintf(stderr, "error: ");
va_start(argp, fmt);
vfprintf(stderr, fmt, argp);
va_end(argp);
fprintf(stderr, "\n");
}
To use the older <varargs.h> package, instead of <stdarg.h>, change the function header to:

void error(va_alist)
va_dcl
{
char *fmt;
change the va_start line to

va_start(argp);
and add the line

fmt = va_arg(argp, char *);
between the calls to va_start and vfprintf. (Note that there is no semicolon after va_dcl.)

References: K&R II Sec. 8.3 p. 174, Sec. B1.2 p. 245; H&S Sec. 17.12 p. 337; ANSI Secs. 4.9.6.7, 4.9.6.8, 4.9.6.9 .

main() { int a=10,*j; void *k; j=k=&a; j++; k++; printf("\n %u %u ",j,k); }

1 Answers  

---

how to create a 3x3 two dimensional array that will give you the sums on the left and bottom columns

0 Answers  

---

String reverse with time complexity of n/2 with out using temporary variable.

10 Answers   NetApp, Symantec,

---

create a login program that ask username and password. if you input username or password 3 times wrong, the program will terminate else the program will prompt a message "congratulations"

2 Answers  

---

void main() { char a[]="12345\0"; int i=strlen(a); printf("here in 3 %d\n",++i); }

3 Answers  

---

Write a program using one dimensional array to assign values and then display it on the screen. Use the formula a[i]=i*10 to assign value to an element.

1 Answers   Samar State University,

---

main() { extern int i; i=20; printf("%d",sizeof(i)); }

2 Answers  

---

main() { char a[4]="HELLO"; printf("%s",a); }

3 Answers   CSC,

---

main() { signed int bit=512, mBit; { mBit = ~bit; bit = bit & ~bit ; printf("%d %d", bit, mBit); } } a. 0, 0 b. 0, 513 c. 512, 0 d. 0, -513

3 Answers   HCL, Logical Computers,

---

main() { while (strcmp(“some”,”some\0”)) printf(“Strings are not equal\n”); }

1 Answers  

---

What is wrong with the following code? int *foo() { int *s = malloc(sizeof(int)100); assert(s != NULL); return s; }

1 Answers  

---

int a = 10 + 10 .... ,... A = A * A What would be the value of A? The answer is 120!! Could anyone explain this to me.

2 Answers   Bosch, eInfochips, HCL, IHCL,

---