That is hard to tell, because it depends on the way these pointers were allocated. But, as you have pointers 3 levels deep, I suppose it is not enough to free them. You should have a look at tools like valgrind which helps you to identify memory leaks. To explain a bit, char *** means … Read more
The standard way to do this is to send it from the form to your API in cleartext (but using HTTPS, this is essential), then hash it on your backend (seperate issue how to do this), and finally save that hash in the MYSQL database. You do not want to encrypt passwords, you want to … Read more
Hard-code the traversal of two strings in a while loop. If they’re the same, output either string1[i] or string2[i]. If they’re different, write a star. 2 solved Comparison of two dna sequences in C [closed]
It is an interesting problem. Let’s go over the rules again. Players Chicken: takes shortest path to field (there could be multiple shortest paths) and away from eagle (maximise the distance between itself and eagle among shortest paths). Eagle: takes shortest path to chicken To solve the problem we have to assume it is played … Read more
try this code : Using sqlConnection As SqlConnection = New SqlConnection(Utilities.ConnectionString) End Using 2 solved How can I convert using statement in vb syntax [closed]
@”^(([\w\.\-]+)@([\w\-]+)((\.(\w){2,3})+)|(No Email))$” solved Regular expression for email and ‘No Email’ [closed]
You can write it in gcc as: #include <stdio.h> int main () { int a = 0 ; /*How can I write it on gcc*/ __asm__ __volatile__ ( “movl $2, %0\n\t” “addl $4, %0\n\t” :”=r”(a) /* =r(egister), =m(emory) both fine here */ ); printf (“%d\n”,a ); return 0 ; } 1 solved Following is some … Read more
You could design your database table using an IDENTITY column. The database will assign a next value for the inserted row. You can access the value using one of: SCOPE_IDENTITY, @@IDENTITY or IDENT_CURRENT. More can be found here: MSDN-Identity. To know the difference between SCOPE_IDENTITY and @@IDENTITY see here. solved Call the maximum from SQL … Read more
string::find() has an overload that specifies the position to start the search. So simply start a second search, starting at the end of <ID>, to look for </ID>. You are after what comes in between the two. Pretty simple really. However, as suggested elsewhere, there are a lot of XML parsers out there. Using a … Read more
To meet your method name, you need this: protected bool IsStringAndNotNullAndEmpty(object value) { var s = value as string; return s == string.Empty; } Changing its name to IsEmptyString(object value) would be clearer though. It seems the OP actually wants a method that returns true for non-empty strings. So what is required is: protected bool … Read more
(1) isalpha(argv[1]) is wrong. This function expects a single character, but you are passing a pointer-to-string. That will certainly not give you any kind of expected result, and it’s probably Undefined Behaviour into the bargain. You either need to loop and check each character, use a more high-level library function to check the entire string, … Read more
If you just want to discover the default adapter’s assigned IP address, e.g. 192.168.0.237, call getifaddrs and enumerate each address. This is the same list of adapters that ifconfig would normally display with associated information for gateway and netmask. Filter out the ones that are flagged as IFF_LOOPBACK or don’t have IFF_UP. Some sample code … Read more
if(ulDataBuf!=15 && ulData==15) { if(ulDatabuf == 14) { timeON+=500000; } else if(ulDatabuf == 13) { if(timeON!=0) { timeON-=500000; } } else if(ulDatabuf == 11) { timeOFF+=500000; } else if(ulDatabuf == 7) { if(timeOFF!=0) { timeOFF-=500000; } } } 1 solved Switch statement to IF/while [closed]
You are trying to compare double with operator==. The calculations may differ, you need to use an epsilon value for a mistake margin: const double Epsilon = 0.0001; if (((s1+s2+s3) >= s4 – Epsilon) && ((s1+s2+s3) <= s4 + Epsilon)) { } 3 solved Point and triangle
In the first code snippet you’re passing the value of the numbers variable. In the function you change a local variable, and doing so has no effect on the variable is the calling function. In the second snippet you correctly pass the address of numbers so it can be set in the function, and the … Read more