This question already has answers here: How can I compare numbers in Bash? (9 answers) Closed 3 years ago. I have a bash variable depth and I would like to test if it equals 0. In case yes, I want to stop executing of script. So far I have: zero=0; if [ $depth -eq $zero … Read more
This question already has answers here: Formatting a number with leading zeros in PHP [duplicate] (11 answers) Closed 3 years ago. PHP – Is there a quick, on-the-fly method to test for a single character string, then prepend a leading zero? Example: $year = 11; $month = 4; $stamp = $year.add_single_zero_if_needed($month); // Imaginary function echo … Read more
Zero is always zero, so it doesn’t matter. But in a recent discussion with a friend he said that octal literals are almost unused today.† Then it dawned upon me that actually almost all integer literals in my code are octal, namely 0. Is 0 an octal literal according to the C++ grammar? What does … Read more
