STRLEN() doesnt return a expected number - Arduino Forum
Dec 13, 2024 · I know this function cant go wrong so I must be doing something wrong. bool newData = true; char *AXpos; char *EYpos; const char *delimiter = ","; //char inData[numChars]; // an array to …
strlen() - keep the length of the string in a variable
Dec 23, 2015 · How can i keep the length of the string in a variable? for exemple: strlen (name); And then i want to save that number. how can i do that?
sizeof vs. strlen and passing a char array to a function
Jun 4, 2013 · I know one returns the size of the actual variable, in the case of a string, it's the number of characters plus the null ending, but something seems weird to me, since when I ask for a sizeof a …
Compiler Error "error: 'strlen' was not declared in this scope"
Apr 20, 2013 · Hello, I have already made a program that uses a 4v4 matrix keypad to edit four separate strings of numbers and then add them all together when requested. The answers all all printed to the …
The strnlen () C Function Is Not Available - Arduino Forum
Jun 28, 2023 · The strlen () function is defined, but the strnlen () function is not defined. Anybody know why this is the case and perhaps how to fix it? jremington June 28, 2023, 10:20pm 2
Question about size_t and strlen () - Arduino Forum
Jan 8, 2021 · strlen () is very different than sizeof: sizeof is part of the language, it gives you the number of bytes allocated for a variable. strlen () is a function call, part of the many standard libraries of C …
strlen issue - Programming - Arduino Forum
May 31, 2015 · I seem to he having an issue with the strlen () call. If I create a string say "char data [20]" and make that "this is a test\r\n" I get back a length of 16 Although that should return a len of 17 with …
strlen and PROGMEM - Programming - Arduino Forum
Jan 4, 2020 · strlen_P(reinterpret_cast<const char *>(text)) Reinterpret_cast is dangerous, and can only be used in a very limited number of cases: reinterpret_cast conversion - cppreference.com In this …
strlen not in arduino reference? And String library question
Dec 12, 2011 · Hi I'm new to Arduino but do like what I see so far from this interesting little platform. However, I seem to be finding the programming rather difficult. I noticed that the strlen() function is …
strlen for Char string of Non-Ascii chars - Arduino Forum
Jan 8, 2011 · The strlen () function simply walks along the array, looking for the position in the array that contains a NULL. Whether the positions in the array contain printable characters, or not, is irrelevant. …