C++/Arduino: strcpy(), strncpy() and memcpy() on unsigned char not working. However if you stuff up and try to put to many chars into that element e.g. Many compilers implement, as a non-standard language extension, the ability to read inactive members of a union. What does the power set mean in the construction of Von Neumann universe? Not the answer you're looking for? Can you try with the actual length? This is a legitimate way to pass char arrays to functions. "Time: 00:00:00 MM/DD/YYYY". The strcpy() function can copy a string including the null character from one variable to another. As can be seen i am using the tempLCD[21] to print the concatenated char to each line and require to clear it before printing to the next line. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. I can get this string into an array of char called buf[33]; Then I want to copy the second string containg the time using strtok() delimited by space. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. strtok is the wrong tool for the job if you know exactly where the characters are. popen adsbygoogle window.adsbygo Note that in C++ this is against the standard but supported by most compilers. How can I pass an object as a parameter to a function? The destination string will always be terminated with a single NUL character using the strlcpy() function. Because of the difference in the size of the source and destination strings, the strcpy() function will overflow, which will cause problems in the code. drmpf: Writing to random memory locations is definitely a bad idea and can often lead to unhappy results such as crashes or program malfunction. , , vars , Adafruit Music Maker. In myPins we declare an array without explicitly choosing a size . Then you will have to post all the code and tell us about the Arduino IDE version, board, etc. Could you be more specific then what is your problem? All of the methods below are valid ways to create (declare) an array. Are the strings and data always the same length and in the same place in the strings ?
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