unary operator expected error in Bash if condition I had to solve this unary operator expected issue in remove_old_pkgs() of the helper script abk for Arch Sign Modules See also 6 4 Bash Conditional Expressions
c# - What does the unary plus operator do? - Stack Overflow What does the unary plus operator do? There are several definitions that I have found (here and here) but I still have no idea what it would be used for It seems like it doesn't do anything but th
bash - [: -gt: unary operator expected - Stack Overflow I don't write a lot of Bash, so I'm a bit stumped as to how to fix this I need to check whether a value returned from a command is greater than x When it runs though I get [: -gt: unary operator
What is the purpose of the unary plus (+) operator in C? The result of the unary + operator is the value of its (promoted) operand The integer promotions are performed on the operand, and the result has the promoted type Worth pointing out that Annotated C++ Reference Manual (ARM) provides the following commentary on unary plus: Unary plus is a historical accident and generally useless
What is unary + used for in Javascript? - Stack Overflow The unary + operator, when used on types other than string, will internally attempt to call valueOf () or toString () (in that order) and then attempt to convert the result to a number Thusly, the unary + operator can successfully convert many of the native JS types with certain restrictions:
Whats the purpose of the + (pos) unary operator in Python? 6 __pos__() exists in Python to give programmers similar possibilities as in C++ language — to overload operators, in this case the unary operator + (Overloading operators means give them a different meaning for different objects, e g binary + behaves differently for numbers and for strings — numbers are added while strings are
error: invalid type argument of ‘unary *’ (have ‘int’) Barebones C program to produce the above error: #include <iostream> using namespace std; int main(){ char *p; *p = 'c'; cout << *p[0]; error: invalid type argument of `unary *' peeking too deeply into p, that's a paddlin cout << **p; error: invalid type argument of `unary *' peeking too deeply into p, you better believe that's a paddlin } ELI5: The master puts a shiny round stone
Is a unary recursive relationship strong identifying or weak non . . . The "unary" just means that both sides of the relationship are filled by the same logical entity It is easy to see that a "meets in" relationship between a Class entity and a Room entity cannot be satisfied between, say, two Class entities or two Room entities However, a "is managed by" relationship requires an Employee entity on both sides