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Question: 1 / 565

What standard C library function converts a string to a double?

atoi

atol

strtod

atof

The standard C library function that converts a string to a double is atof. This function stands for "ASCII to float" and it takes a string as an input and converts it to a double. The other options provided, such as atoi and atol, convert strings to integers and long integers respectively. The function strtod also converts a string to a double, but it allows for more flexibility in the syntax of the string input, unlike atof which strictly follows the conventional decimal notation. Therefore, the correct answer is D.

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