portals and vortals are sometimes considered a type of specialized search engine

Be careful about those three special values as they will propagate.

Invalid operations such as division by zero or adding positive and negative infinity return the special value NaN, 'Not a Number'. If a floating point operation has a result that exceeds the highest or lowest possible number, the return value has the special value of positive or negative infinity respectively. A hexadecimal representation like in Java is not supported. Unfortunately, negative exponents are not allowed in scientific notation. Note that float literals must always contain the decimal point, even when using scientific notation, and must always start with a number or with the minus sign followed by a number. For example the literal 1.2e3 means 1.2♱0 3 = 1200. Generally, float values have a precision of about 6 or 7 decimal digits.įloat literals can either be specified in decimal or scientific notation. The smallest possible value greater than 0 is about 1.175♱0 -38. The possible float values are distributed over the huge range of about 3.403♱0 38 to -3.403♱0 38. UnrealScript has a single precision floating point type called float. Starting with Unreal Engine 3 dynamic arrays of bool are supported, even though the UnrealScript reference on UDN disagrees. For example it's not possible to declare static or dynamic arrays of bool values in Unreal Engine generations 1 and 2 or to use the parameter modifier 'out' on bool parameters in function declarations. The bool type has some restrictions in UnrealScript. These are also the names of the boolean literals. UnrealScript's boolean type is bool and allows the values true and false. For example the hexadecimal literal 0x100 (256) actually represents the value 0 and the decimal literal -1 represents the value 255. If the value is outside the allowed range it will be truncated to the 8 least significant bits. Byte values are integer numbers in the range 0 to 255, in other words unsigned 8 bit values.Īny int literal can also be used in 'byte context'.

The smaller of UnrealScript's two integer types is byte. For example the hexadecimal literal 0x100000005 actually represents the value 5. Values exceeding the allowed range are truncated to the least significant 32 bits. Int literals can be specified in decimal or hexadecimal notation. Int values are integer numbers in the range -2147483648 to 2147483647, in other words signed 32 bit values.

UnrealScript has two integer types and int is the larger of them. Modifications to that copy have absolutely no effect on the original value still stored in the source variable. Variables declared of a primitive type directly contain that value and when assigning that value to another variable or passing it to a function call, a new copy of the value is created. A primitive type only consists of a single and usually simple value.

Portals and vortals are sometimes considered a type of specialized search engine