Uint64

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Conversion functions uint64

Contents

concept

  1. uint64 is a 64 bits (8 bytes) unsigned integer value type.
  2. uint64() is a function converting data items or units of other value types to the uint64 value type.

The next topics on this page describe the uint64() function.

syntax

definition

uint64(a) results in a 64 bits(8 bytes) unsigned integer item converted from item a. The function results for:

  • integer data items: the integer value is interpreted as uint64 value, if the value exceeds the allowed value range for the uint64 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 uint64 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 uint64 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 64 bits(8 bytes) unsigned integer unit of the converted unit.

applies to

since version

  • 5.95
  • u suffix: since 7.105

example

1. parameter<uint64> uint64Numeric1 := uint64(1);
2. parameter<uint64> uint64Numeric1 := 1u64;

3. attribute<uint64> uint64A (ADomain) := uint64(A);    
4. attribute<uint64> uint64B (ADomain) := uint64(B);
A(float32) B(string) uint64A uint64B
0 'Hello' 0 null
1 'Test' 1 null
1000000 null 1000000 null
-2.5 'Two words' null null
99.9 '88a' 99 88

ADomain, nr of rows = 5

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