36 lines
1.2 KiB
MQL5
36 lines
1.2 KiB
MQL5
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//+------------------------------------------------------------------+
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//| ExternHeader1.mqh |
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//| Copyright 2021, MetaQuotes Ltd. |
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//| https://www.mql5.com |
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//+------------------------------------------------------------------+
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#ifdef USE_INCLUDE_WORKAROUND
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// a replacement for extern variable could be:
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#include "ExternCommon.mqh" // which contains:
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//+------------------------------------------+
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//| /* ExternCommon.mqh */ |
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//| int x; |
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//+------------------------------------------+
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#else
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extern int x;
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#endif
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// the following line would throw the error "unresolved extern variable 'y'",
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// if 'y' is not defined anywhere else
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extern long y;
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short z;
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//+------------------------------------------------------------------+
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//| Mockup increment function using 'x' |
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//+------------------------------------------------------------------+
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void inc()
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{
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x++;
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}
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//+------------------------------------------------------------------+
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