A pointer to a read-only wide-character string, where each character is of type `wchar_t`. Used for representing text in wide-character encoding to support extended character sets, such as Unicode. The string is null-terminated, with the terminator being a `wchar_t` with value 0.
1st Parameter
Pointer to the null-terminated wide-character string to be converted.
Pointer to a pointer to a wide character. It is set to the character in `nptr` where the conversion stopped.
Read more about parameters of wcstod in parameters section
The wcstodfunction in C language Converts the initial portion of a wide character string to a double-precision floating-point number.
wcstod interprets the wide-character string pointed to by nptr, producing a double value as a result. It skips leading whitespace, recognizes an optional plus or minus sign, and then parses the longest sequence of characters that form a valid floating-point representation.
The wcstodfunction takes 2
parameters:
•
const wchar_t * `nptr`: Pointer to the null-terminated wide-character string to be converted.
•
wchar_t ** `endptr`: Pointer to a pointer to a wide character. It is set to the character in `nptr` where the conversion stopped.
Converts the initial part of the wide-character string `nptr` to a `double` value. If `endptr` is not `NULL`, it points to the first character after the number that was converted.
The wcstod function return value :
Returns the converted double value
If no conversion can be performed, 0
0 is returned
If the correct value would cause overflow, HUGE_VAL (with the proper sign) is returned
If the correct value would cause underflow, a value whose magnitude is no greater than the smallest normalized positive number is returned
Output
This example demonstrates the basic usage of wcstod to convert a wide string to a double value.