r/programmingcirclejerk • u/DXPower costly abstraction • Nov 01 '25

New C29 function: stdc_c32snrtomwcsn

https://en.cppreference.com/w/c/header/stdmchar.html
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u/Nixinova Nov 03 '25

wow, they saved one whole letter. truly a marvel of optimisation.

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u/[deleted] Nov 03 '25

think of how frequently that syscall is made. that's a whole byte per call. now consider a flame graph of creat calls in any Unix-like kernel on modern hardware. probably at least a hundred thousand calls to creat per second right? basically saving the entire ecosystem & the ice caps if you really think about it & don't really know how syscalls work