Uint4

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Conversion functions uint4

Contents

concept

  1. uint4 is a 2 bits unsigned integer sub byte value type.
  2. uint4() is a function converting data items or units of other value types to the uint4 value type.

The next topics on this page describe the uint4() function.

syntax

definition

uint4(a) results in a 2 bits unsigned integer item converted from item a. The function results for:

  • integer data items: the integer value is interpreted as uint4 value, if the value exceeds the allowed value range for the uint4 value type, the resulting value will be 0;
  • float32/64 data items: the value before the decimal point (so 1.9 will be rounded off to 1 and 2.0 to 2). If the value exceeds the allowed value range for the uint4 value type, the resulting value will be 0;
  • boolean data items: 1 for True values and 0 for False values;
  • string data items, if the value starts with an allowed numeric value for the value type, this value is converted to a uint4 value type. Other characters after the numeric values are ignored. If the string does not start with an allowed numeric value for the value type, the resulting value will be 0;
  • units, a 4 bits unsigned integer unit of the converted unit.

applies to

since version

  • 5.15
  • u2 suffix: since 7.105

example

1. parameter<uint4> uint4Numeric1 := uint4(1);
2. parameter<uint4> uint4Numeric1 := 1u4;

3. attribute<uint4> uint4A (ADomain) := uint4(A);    
4. attribute<uint4> uint4B (ADomain) := uint4(B);
A(float32) B(string) uint4A uint4B
0 'Hello' 0 0
1 'Test' 1 0
1000000 null 0 0
-2.5 'Two words' 0 0
99.9 '88a' 0 0

ADomain, nr of rows = 5

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