19 lines
858 B
Markdown
19 lines
858 B
Markdown
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# Predefined preprocessor constants
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MQL5 has several predefined constants that are equivalent to simple macros, but they are defined by the compiler itself. The following table lists some of their names and meanings.
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| Name | Description |
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| --- | --- |
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| __COUNTER__ | Counter (each mention in the text during macro expansion results in an increase of 1) |
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| __DATE__ | Compilation date (day) |
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| __DATETIME__ | Compilation date and time |
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| __FILE__ | The name of the compiled file |
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| __FUNCSIG__ | Current function signature |
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| __FUNCTION__ | Current function name |
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| __LINE__ | Line number in the compiled file |
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| __MQLBUILD__, __MQL5BUILD__ | Compiler version |
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| __RANDOM__ | Random number of type ulong |
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| __PATH__ | Path to compiled file |
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| _DEBUG | Defined when compiling in debug mode |
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| _RELEASE | Defined when compiling in normal mode |
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