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#include <stddef.h> #include <inttypes.h> intmax_t wcstoimax(const wchar_t *restrict nptr, wchar_t **restrict endptr, int base);
uintmax_t wcstoumax(const wchar_t *restrict nptr, wchar_t **restrict endptr, int base);
These functions are equivalent to the wcstol(3C), wcstoll(3C), wcstoul(3C), and wcstoull(3C) functions, respectively, except that the initial portion of the wide string is converted to intmax_t and uintmax_t representation, respectively.
These functions return the converted value, if any. If no conversion could be performed, 0 is returned. If the correct value is outside the range of representable values, {INTMAX_MAX}, {INTMAX_MIN}, or {UINTMAX_MAX} is returned (according to the return type and sign of the value), and errno is set to ERANGE.
These functions will fail if:
EINVAL
The value of base is not supported.
ERANGE
The value to be returned is not representable.
These functions may fail if:
EINVAL
No conversion could be performed.
See attributes(5) for descriptions of the following attributes:
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
| Interface Stability | Standard |
| MT-Level | MT-Safe |
wcstol(3C), wcstoul(3C), attributes(5), standards(5)