53 lines
2.2 KiB
MQL5
53 lines
2.2 KiB
MQL5
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//+------------------------------------------------------------------+
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//| ConversionNumbers.mq5 |
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//| Copyright 2021, MetaQuotes Ltd. |
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//| https://www.mql5.com |
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//+------------------------------------------------------------------+
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#define PRT(A) Print(#A, "=", (A))
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#define PRT2(A) Print(#A, "='", (A), "'")
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//+------------------------------------------------------------------+
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//| Script program start function |
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//+------------------------------------------------------------------+
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void OnStart()
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{
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const string text = "123.4567890123456789";
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const string message = "-123e-5 buckazoid";
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const double number = 123.4567890123456789;
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const double exponent = 1.234567890123456789e-5;
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// typecasts
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PRT((double)text); // 123.4567890123457
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PRT((double)message); // -0.00123
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PRT((string)number); // 123.4567890123457
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PRT((string)exponent);// 1.234567890123457e-05
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PRT((long)text); // 123
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PRT((long)message); // -123
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// conversions
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PRT(StringToDouble(text)); // 123.4567890123457
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PRT(StringToDouble(message)); // -0.00123
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// by default, 8 digits in fractional part
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PRT(DoubleToString(number)); // 123.45678901
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// customized accuracy
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PRT(DoubleToString(number, 5)); // 123.45679
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PRT(DoubleToString(number, -5)); // 1.23457e+02
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PRT(DoubleToString(number, -16));// 1.2345678901234568e+02
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PRT(DoubleToString(number, 16)); // 123.4567890123456807
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// last 2 digits are unreliable!
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PRT(MathSqrt(-1.0)); // -nan(ind)
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PRT(DoubleToString(MathSqrt(-1.0))); // 9223372129088496176.54775808
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PRT(StringToInteger(text)); // 123
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PRT(StringToInteger(message)); // -123
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PRT2(IntegerToString(INT_MAX)); // '2147483647'
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PRT2(IntegerToString(INT_MAX, 5)); // '2147483647'
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PRT2(IntegerToString(INT_MAX, 16)); // ' 2147483647'
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PRT2(IntegerToString(INT_MAX, 16, '0'));// '0000002147483647'
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}
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//+------------------------------------------------------------------+
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