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20 lines
808 B
Markdown
20 lines
808 B
Markdown
[< back to index](../doc_index.md)
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# Predefined constants
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* `byte nullchar` – the null terminator for strings in the default encoding, equivalent to `""z[0]`
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* `null$ nullptr` – the invalid pointer value; the value of the `NULLPTR` feature
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* `bool true`, `bool false` – boolean constants
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* `pointer segment.N.start` – the value of `segment_N_start` from the platform definition
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* `pointer segment.N.end` – the value of `segment_N_end` from the platform definition
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* `pointer segment.N.heapstart` – the address of the first byte in the `N` segment that was not automatically allocated
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* `word segment.N.length` – the number of byte locations between `segment_N_start` and `segment_N_end`, inclusive
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* `byte segment.N.bank` – the value of `segment_N_bank` from the platform definition
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