how does a main() in C++ is different from main() in C?
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Answer / seetha
hello kunal... ur answer was simply wrong..
becoz in both c and c++ also if v use like int main() and
the absence of return 0;
will give only warning message to us... i just complied and
telling this...
if u want to check me... you just compile in both the
language and tell......
without knowing answers pls dont update urself....
| Is This Answer Correct ? | 29 Yes | 12 No |
Answer / yj
First of all, make it clear that whenever we run any program the compiler search for the main() function to start execution...
Now,
The programming language C follows top down approach. Means the control moves from top to down. Hence in this we have to give main function above all the other lines of code...
But when you program in C++ which follows bottom up approach i.e., the control moves from bottom to up...For example, when we make a function in C++ we give its definition above main() and when we call that function in main(): as soon as the compiler encounter the "calling line"...the compiler now search for the definition of that function which is above the function main(). Now u visualise that the control is moving from bottom to up.
Hence,
"The function main() in C has to be given at the top. But in C++the function main can be at the bottom also"
| Is This Answer Correct ? | 25 Yes | 13 No |
Answer / vishal palan
In C the main() does not return any value by default. But in C++ the main() returns value int by default.
Again
In U can complie progm by writing main(){....}
But in C++ u have to return int main() {...return 0;}
or void main() {...}
| Is This Answer Correct ? | 16 Yes | 13 No |
Answer / shivam
in c++ this approach is based on the concept of clint server model . the class definition including the member functions cositute the server that provides services to the main() main function program in c the program starts from main()
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / jit
In C if we write a program like
int main()
{
static int i = 5;
if (--i){
printf("%d ", i);
main(10);
}
}
It works but not in C++
| Is This Answer Correct ? | 0 Yes | 1 No |
Answer / hamza
in C++, you do not need to type "return 0;" statement in a [ int main() {} ]as it will be provided automatically but not in case of C.
| Is This Answer Correct ? | 22 Yes | 32 No |
Answer / bhanu
in c main() is a function, in c++ main() a class
| Is This Answer Correct ? | 8 Yes | 24 No |
#include <string.h> #include <stdio.h> #include <stdlib.h> #include<conio.h> void insert(char *items, int count); int main(void) { char s[255]; printf("Enter a string:"); gets(s); insert(s, strlen(s)); printf("The sorted string is: %s.\n", s); getch(); return 0; } void insert(char *items, int count) { register int a, b; char t; for(a=1; a < count; ++a) { t = items[a]; for(b=a-1; (b >= 0) && (t < items[b]); b--) items[b+1] = items[b]; items[b+1] = t; } } design an algorithm for Insertion Sort
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