Question

Look at the following statements.

char str[] = "237.89";
double value;
Write a statement that converts the string in str to a double and stores the result in value.

Answer 1

To convert the string in the variable str to a double and store the result in value, you can use the strtod function from the C library stdlib.h.

Step-by-step explanation:

To convert the string in the variable str to a double and store the result in the variable value, you can use the strtod function from the C library stdlib.h.

Here is an example of how you can use it:

value = strtod(str, NULL);

This function takes two parameters: the string to convert and a pointer to a character that will store the first invalid character encountered in the string. In this case, we use NULL as the second parameter because we are not interested in the first invalid character. The function returns the converted double value.