Answer / vignesh1988i

#include<stdio.h>
#include<conio.h>
void str_cpy(const char *,const char *);
void main()
{
char a[20],b[20];
printf("enter the string for a[] :");
gets(a);
str_cpy(a,b);
printf("\nthe string for b[] is : ");
puts(b);
getch();
}

void str_cpy(const char *a,const char *b)
{
while((*a)^'\0')
{
*b=*a;
*a++;
*b++;
}
*b='\0';
}


thank u

Answer / ragu

if we compile in turbo c its showing error like this
in that above code we cant modify a const object in function str_cpy(const char *a,const char *b)

#include<stdio.h> void main() { int a=10,b=20,c=30; printf("%d",scanf("%d%d%d",&a,&b,&c)); } what is the output for this?

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Why preprocessor should come before source code?

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Write a function which takes as parameters one regular expression(only ? and * are the special characters) and a string and returns whether the string matched the regular expression.

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write a program that explain #define and # undef directive

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can we have joblib in a proc ?

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The difference between printf and fprintf is ?

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a number is perfect if it is equal to the sum of its proper divisor.. 6 is perfect number coz its proper divisors are 1,2 and three.. and 1+2+3=6... a number is deficient if the sum of its proper divisor is less than the number.. sample: 8 is deficient, coz its proper divisors are 1,2 and 4, and 1+2+4=7. abundant number, if the sum of its proper divisor is greater than the number.. sample..12 is abundant coz 1+2+3+4+6=16 which is geater than 12. now write a program that prompts the user for a number, then determines whether the number is perfect,deficient and abundant..

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what is the function of pragma directive in c?

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a character or group of characters that defines a register,or a part of storage a) memory b) byte c) address d) linear list

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Write an implementation of “float stringToFloat(char *str).” The code should be simple, and not require more than the basic operators (if, for, math operators, etc.). • Assumptions • Don’t worry about overflow or underflow • Stop at the 1st invalid character and return the number you have converted till then, if the 1st character is invalid return 0 • Don’t worry about exponential (e.g. 1e10), instead you should treat ‘e’ as an invalid character • Write it like real code, e.g. do error checking • Go though the string only once • Examples • “1.23” should return 1.23 • “1a” should return 1 • “a”should return 0

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Differentiate b/w Modify and Update commands giving example.

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How can I allocate arrays or structures bigger than 64K?

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