Results for “character”
Small, practical examples. Search by task or narrow things down below.
Copy a flash string into a bounded RAM buffer
Arduino / C: strncpy_P reads from program memory into ordinary RAM.
Arduino / C✓ Tested
Copy a multibyte interrupt-owned counter atomically
Arduino / C: ATOMIC_RESTORESTATE restores the interrupt state after reading a shared value.
Arduino / C✓ Tested
Copy a string with a guaranteed terminator
Arduino / C: Reserve one character for the terminator when copying a bounded string.
Arduino / C✓ Tested
Count a button’s falling edge in the main loop
Arduino / C: Compare each reading with the previous state to detect transitions.
Arduino / C✓ Tested
Count a falling edge with an interrupt
Increment a counter when an external input changes.
attachInterrupt✓ Tested
Count a rising edge with an interrupt
Arduino / C: RISING triggers when the input changes from low to high.
Arduino / C✓ Tested
Count bytes in a file
Linux Commands: Use wc -c for byte length rather than Unicode character count.
Linux Commands✓ Tested
Count down with a bounded loop
Arduino / C: Count down with a bounded loop on an Uno with the Serial Monitor set to 9600 baud.
Arduino / C✓ Tested
Count five LED flashes with a for loop
Arduino / C: Repeat an LED action a known number of times and print the current count.
Arduino / C✓ Tested
Count lines in a file
Count newline characters in a text file, printing only the count without the filename.
lines✓ Tested
Count the elements in an array
Bash Scripts: The array length form counts assigned elements, not characters in the first value.
Bash Scripts✓ Tested
Count Unicode code points
Java: Use codePointCount when supplementary characters should count as one rather than two UTF-16 units.
Java✓ Tested