Infinite Loop in C
"Infinite Loop in C-code means the loop does not terminate."
C-Compiler: Code Blocks (https://sourceforge.net/projects/codeblocks/), Turbo C++, Dev-C++ (https://sourceforge.net/software/product/Embarcadero-Dev-Cpp/)
Example 1.
C-programing in Linux platform:
1. Open a text-editor -> Write C-code -> Press (ctrl+shift+s) -> type filename.c -> Click on save .
2. Open command prompt (a) For compilation: Type gcc filename.c (b) For execution: Type ./a.out
There are mainly four types of infinite loop in C-programming.
(i) By calling the main function into the main().
(ii) By using for-loop.
(iii) By using while-loop.
(iv) By using do-while-loop.
# include<stdio.h>
void main ()
{
printf ("hello");
main();
}
The output of this C-programming: hellohellohello--------------till interrupt (ctrl+z).
#include<stdio.h>
int main()
{
for(;;)
{
printf("hello \n");
}
return(0);
}
#include<stdio.h>
int main()
{
while(1)
{
printf("hello\n");
}
return(0);
}
#include<stdio.h>
int main()
{
do
{
printf("hello\n");
}
while(1);
return(0);
}
If the return type of main() function is an integer then we must include a return(0) function in our code.
On Windows Platforms (Turbo C++):
Example 2.
#include<stdio.h>
#include<conio.h>
void main ()
{
for (;;)
{
printf ("hello");
}
clrscr ();
getch ();
}
In "Turbo c++" compiler, we must include getch() and clrscr() function for displaying the output on clear screen.
