[Warning] It not the completed code. its just a rough idea
do{
printf("Please enter a number :")
scanf("%d", &no);
if (no <=0)
printf("invalid");
}while(no<=0);Hi Guys!
I've a issue with scanf.
First loop the program. I entered '1', a valid input. Once i retry the program, i entered a value example 'abcwad'. It is confirm invalid. But the scanf will use back the first loop of the program value of '1'
any solution?
scnaf with %d will only accept numeric data -- anything else is ignored and scanf() does not change the value of the input parameter. Check the return value to see if scanf() successfuly converted any data.
Oh. If i typed none numeric data, scanf will use back the first loop program value.. any other solution to solve this?
Get the input data as a string, then your program can check its contents to see if it's numeric data or not. Since you are posting in the c++ forum I'd suggestion using cin and std::string, not scanf() or fgets() which are from C language.
Hmm Cos im using visual C++.
Anyway, Is there any idea that i can add range for this http://www.daniweb.com/code/snippet216679.html code.
do
{
fputs("Enter an integer (0-100): ", stdout);
fflush(stdout);
} while ( !mygeti(&value) || value < 0 || value > 100 );THANKS!
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