ACPI_IS_DIGIT     194 include/acpi/acutils.h #define ACPI_IS_DIGIT(c)  (_acpi_ctype[(unsigned char)(c)] & (_ACPI_DI))
ACPI_IS_DIGIT     246 include/acpi/platform/acenv.h #define ACPI_IS_DIGIT(i)        isdigit((int) (i))