I was just trying to see how to check for the null terminating character in the char * array but I failed. I can find the length using the for loop
> char array[SIZE] = {0}; Nothing wrong with this. It just assumes that the remaining SIZE-1 elements are also zero, so that's it, job done.
When using strcat() to combine two strings, are both null characters preserved? Or is one of them lost, so that only one null character exists at the end of the new, larger string? Thanks in advance for your time and patience in answering this...
Другие символы. NUL. Null. (No character- нет данных). Используется для передачи в случае отсутствия данных.
Ken Sanchez NULL * Terri Duffy NULL * Roberto Tamburello NULL * Rob Walters NULL * Gail Erickson Ms. * (5 row(s) affected). When you convert data types that differ in decimal places, SQL Server will sometimes return a truncated result value, and at other times it will return a rounded value.
A null byte is a char having a value of exactly zero, noted as '\0'.
Предикат IS NULL позволяет проверить отсутствие (наличие) значения в полях таблицы. Использование в этих случаях обычных предикатов сравнения может привести к неверным результатам, так как сравнение со значением NULL дает результат UNKNOWN (неизвестно).
Is there a way to set a char variable to 0 or null or something so that it will basically reset my control variable.
I don't write a lot of C, so I'm always discovering things I only partly understand in the Arduino variety. One of these is how Serial.print handles char[]. Does Serial.print always require a null terminator?
У NULL слишком важное значение в теории баз данных чтобы его заменить на пустое