empty

[Xiang]

Dear sir,

In the C progamming, how can the program detects an empty string, if users leave a string field empty. (other than used strlen function).

Thanks

Xiang

[XtrmelyCanadian]

There is an IsEmpty() function in C++ dont know if its in C though.

[Jason]

if (string == ""){
do whatever
}

that should work, you tried that?


Jason

[migo]

You can't use "==" on strings, because this will compare the pointers, and not the string values (I am talking about regular char*, and not a more complex wrapper).

The simplest way it to check:
if( str[0] == '\0' )
{
// is empty
}