Tricky Situation: strtod function converting strings to inf or nan

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This blog post discuss about a tricky situation which can happen when using strtod function. Strtod function interprets the contents of string as a floating point number and return its value as a double.

The declaration of strtod function is as shown below:

Declaration

double strtod(const char*str, char **end)

str -> It represents the value of the string which is to be converted.
end -> It is the reference to an already allocated object of type char*

Similar to the post about atof function, strtod function also converts the string to inf or nan if the string starts with "inf" or "nan". This can cause downstream impacts if the converted value is passed to database.

The following program depicts this issue:



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  2. RenaSeptember 9, 2023 at 2:52 AM

    A tricky situation with the strtod function can occur when converting strings to floating-point numbers. Geoeng Mudah Resipi It's sensitive to input format, potentially leading to precision loss or incorrect results. It's vital to validate input.

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