Character constant too long for its type
You should use double quotes for string lliteral, and you are wrongly declaring the array. Perhaps you are looking for thiss.
variables
Using ‘printf’ on a variable in C [closed]
Your printf needs a format string: This reference page gives details on how to use printf and related functions.
What is the difference between %g and %f in C?
See any reference manual, such as the man page: f,F The double argument is rounded and converted to decimal notation in the style [-]ddd.ddd, where the number of digits after the decimal-point character is equal to the precision specification. If the precision is missing, it is taken as 6; if the precision is explicitly zero, no … Read more
C++ Global variable declaration
You must use extern, otherwise you will have separated bShouldRegister variables in each translation unit with probably different values. Put this in a header file (.h): Put this in one of implementation files (.cpp):
Getting the name of a variable as a string
TL;DR Use the Wrapper helper from python-varname: For list comprehension part, you can do: I am the author of the python-varname package. Please let me know if you have any questions or you can submit issues on Github. The long answer Is it even possible? Yes and No. We are retrieving the variable names at … Read more
Why SQL Server throws Arithmetic overflow error converting int to data type numeric?
Numeric defines the TOTAL number of digits, and then the number after the decimal. A numeric(3,2) can only hold up to 9.99.
How can I test that a variable is more than eight characters in PowerShell?
Use the length property of the [String] type: Please note that you have to use -gt instead of > in your if condition. PowerShell uses the following comparison operators to compare values and test conditions: -eq = equals (==) -ne = not equals (!=) -lt = less than (<) -gt = greater than (>) -le = less than or equals (<=) -ge = greater than or equals (>=)
JavaScript check if variable exists (is defined/initialized)
The typeof operator will check if the variable is really undefined. The typeof operator, unlike the other operators, doesn’t throw a ReferenceError exception when used with an undeclared variable. However, do note that typeof null will return “object”. We have to be careful to avoid the mistake of initializing a variable to null. To be safe, this is what we could use instead: For more … Read more
In Java, how to assign the variable number=Integer.parseInt(args[0]) a value if no argument is passed?
You could assign value of n as 0 or any other value by default and use if(args.length > 0) { to check whether any arguments is given. Below is full example with comments: Note: Users which are not so familiar with java, this program can be run by: Saving it to Infinity.java Compiling it with cmd or terminal by writing: javac Infinity.java Executing it … Read more
Which variable size to use (db, dw, dd) with x86 assembly?
Quick review, DB – Define Byte. 8 bits DW – Define Word. Generally 2 bytes on a typical x86 32-bit system DD – Define double word. Generally 4 bytes on a typical x86 32-bit system From x86 assembly tutorial, The pop instruction removes the 4-byte data element from the top of the hardware-supported stack into the specified operand (i.e. register or … Read more