The precedence of operators is as follows, from highest to lowest. Operators on the same line all have the same precedence.
| ** | exponentiation |
| +, -, !, ~, ++, and –– | unary plus, unary negation, logical not, bit complement, pre- and post-increment, pre- and post-decrement ++ and –– are not available in Expression Nodes. |
| *, /, % | multiplication, division, modulus (remainder) |
| + and – | addition and subtraction |
| >> and << | arithmetic shift right and shift left |
| >, <, >=, and <= | greater, less, greater or equal, and less or equal |
| != and == | inequality and equality |
| & | bit and |
| ^ | bit exclusive or |
| | | bit or |
| && | logical and |
| || | logical or |
| ? : | conditional evaluation |
| = op= | assignment, shortcut operate and assign op can be +, –, *, /, >>, <<, &, ^, |, %, or **. = op= is not available in Expression Nodes. |
The assignment operator = is right associative (groups right to left), as is the exponentiation operator **. All other binary operators are left associative.
The numeric value of TRUE is 1, and FALSE is 0 for output. The logical value of 0 is FALSE, and any nonzero number is TRUE. The logical value of the conditional expression
<lexpr> ? <texpr>: <fexpr>
is <texpr> if the logical value of <lexpr> is TRUE and <fexpr> otherwise.
|
Note You can use Formula Node most effectively if you are familiar with the C programming language. LabVIEW Help assumes you are familiar with C and does not contain any topics related to programming in C. Refer to The C Programming Language by Brian W. Kernighan and Dennis M. Ritchie or Teach Yourself C by Herbert Schildt for more information. |