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Funkce
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Converts a string to a real value.
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Zápis
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real strtod(string s);
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Returns
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The strtod function returns the numerical representation
of the given string as a real value. Conversion ends at the
first character that does not fit into the format of a
real constant.
If an error occurs during conversion of the string 0.0
will be returned.
Viz také strtol
Příklad
string s = "3.1415";
real r = strtod(s);
printf("The value is %f\n", r);