On September 20, 2022 5:22 PM Paul Eggert wrote: >Don't assume that time_t fits in long, as some hosts (e.g., glibc x86 - >D_TIME_BITS=64) have 32-bit long and 64-bit time_t. >This fix uses C99 sprintf/scanf %jd and %ju, which is safe to assume nowadays.
I am sorry to say that the %j prefix is not safe or portable. There are major production platforms where this is not supported. I work on one of them. %l and %ll are supportable and can be selected with a configuration knob that would be safer. -Randall
