47 lines
1.3 KiB
Markdown
47 lines
1.3 KiB
Markdown
# StringToDouble
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The function converts string containing a symbol representation of number into number of double type.
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```
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double StringToDouble(
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string value // string
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);
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```
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Parameters
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value
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[in] String containing a symbol representation of a number.
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Return Value
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Value of double type.
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Example:
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```
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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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//--- string to convert
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string str = "12345.54321";
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//--- convert the input string as a real number into a double type variable
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double converted=StringToDouble(str);
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//--- display the resulting number accurate to 8 decimal places in the journal
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PrintFormat("The string '%s' is converted to the real number %.8f", str, converted);
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/*
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result:
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The string '12345.54321' is converted to the real number 12345.54321000
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*/
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}
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```
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See also
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[NormalizeDouble](/en/docs/convert/normalizedouble), [Real types (double, float)](/en/docs/basis/types/double), [Typecasting](/en/docs/basis/types/casting)
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