!ok is the same as ok == 0. Remember that in C, any non-zero scalar value in a Boolean context means “true” while zero means “false”. It’s a common C idiom to write !foo instead of foo == 0. It works for pointers as well: FILE *foo = fopen( “some_file”, “r” ); if ( !foo … Read more
This is the way: linkedItemType == LinkedItemType.Prospect ? “pendo-prospects” : linkedItemType == LinkedItemType.Loan ? “pendo-loan” : “pendo-task”; Or, the same thing broken onto different lines for readability: linkedItemType == LinkedItemType.Prospect ? “pendo-prospects” : linkedItemType == LinkedItemType.Loan ? “pendo-loan” : “pendo-task”; 0 solved How to chain Ternary Operators? [closed]
If you have multiple fields to check, simply make a small helper method that returns a string (or empty) based on a condition (boolean): messageErreur += Check(!myField.IsNullOrNa(), myField.IsDecimalWithMessage(nameof(myField)); messageErreur += Check(myField.HasError(), myField.HasError(nameof(myField)); private string Check(bool condition, string message) => condition ? message : string.Empty; 0 solved Convert if condition into ternary with C#
Yes, the only differences between a struct and class in C++ are: In C++, a structure is a class defined with the struct keyword. Its members and base classes are public by default. A class defined with the class keyword has private members and base classes by default. This is the only difference between structs … Read more
The “is” operator takes 2 operands and returns a boolean value representing the ability for the first operand to be cast into the second operand. For example: if(object1 is ClassA) //returns true if object1 is derived from ClassA or can be cast into ClassA. 5 solved What does the `is` operator do in C#?
The call to DeleteFile() does work and in your case it did work. DeleteFile() is contracted to delete the file you specify, if it can be deleted. If the file could be deleted, then it will be. If the file could not be deleted then it will not be. If DeleteFile() returns false, what the … Read more
The easiest way is probably #include <iostream> #include<string> using namespace std; int main (){ int a=2; while(a<=6){ cout<< a << std::string((a/2),’*’) <<endl; // ^^^^^^^^^^^^^^^^^^^^^^ a+=2; } return 0; } 0 solved how to print char in multiple times in c++
From the standard N4687: 20.5.4.3.2 Macro names 1 A translation unit that includes a standard library header shall not #define or #undef names declared in any standard library header. 2 A translation unit shall not #define or #undef names lexically identical to keywords, to the identifiers listed in Table 4, or to the attribute-tokens described … Read more
Try this: for (int i = 1; i <= 14; i++) Console.WriteLine(i – i / 6 – i / 7 – i / 9 + i / 12 – i / 13 + i / 14); At position i = 6, i = 7, i = 9 and i = 13 you want to repeat … Read more
To wrap up this discussion. From @Erresen, “you’re currently catching ALL exceptions with your current catch.” This is fine if you don’t want / need to do something specific based on the specific exception received. However, as @Johny Mopp mentioned, ObjectDisposedException and IOException are potential exceptions. Perhaps, if you have an IOException, you’ll want to … Read more
You could just use explode(“,”,$list_of_emails) and then loop over the resulting array of email addresses to do your sending. You could also probably do this in bash with cut and/or xargs. solved What are C++ arrays in PHP? [closed]
Arrays in C (or C++) are blocks of memory. The compiler needs to know how big the array is in order to allocate the needed amount of memory. They are not expandable. To make an array bigger, you have to allocate a new array with more memory, and copy the old array into it. There … Read more
Source control. Backups. When you edit a file outside of VS (or another copy of VS) VS will track cahnges made to the file. You can have VS not refresh the file. 1 solved visual studio 2008: HELP lost data! [closed]
This program provokes undefined behavior since it does not follow the rules of C. You should give printf one argument per format specifier after the format string. On common C implementations, it prints whatever happens to be on the stack after the pointer to “%d”, interpreted as an integer. On others, it may send demons … Read more
vector<int> adj[n]; This is not legal C++ code, you are not allowed to declare a dynamicaly sized array on the stack like this. It’s also probably the cause of your issue, as making such a huge allocation on the stack can cause some major issues. You should use the following instead: vector<vector<int>> adj(n); 6 solved … Read more