Uint8

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Conversion functions uint8

Contents

concept

  1. uint8 is a 8 bits (1 byte) unsigned integer value type.
  2. uint8() is a function converting data items or units of other value types to the uint8 value type.

The next topics on this page describe the uint8() function.

syntax

definition

uint8(a) results in a 8 bits(1 byte) unsigned integer item converted from item a. The function results for:

  • integer data items: the integer value is interpreted as uint8 value, if the value exceeds the allowed value range for the uint8 value type, the resulting value will be null;
  • 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 uint8 value type, the resulting value will be null;
  • 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 uint8 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 null;
  • units, a 8 bits(1 byte) unsigned integer unit of the converted unit.

applies to

since version

  • 5.15
  • b suffix: since 7.105

example

1. parameter<uint8> uint8Numeric1 := uint8(1);
2. parameter<uint8> uint8Numeric1 := 1b;

3. attribute<uint8> uint8A (ADomain) := uint8(A);    
4. attribute<uint8> uint8B (ADomain) := uint8(B);
A(float32) B(string) uint8A uint8B
0 'Hello' 0 null
1 'Test' 1 null
1000000 null null null
-2.5 'Two words' null null
99.9 '88a' 99 88

ADomain, nr of rows = 5

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