From: Keith.S.Thompson+u@gmail.com   
      
   David Brown  writes:   
   [...]   
      
   Context: %wN and %wfN printf length modifier, new in C23.   
      
   > gcc has supported the format, along with much of C23, since gcc 13,   
   > and ARM's gcc-based toolchain version 13.2 is from October 2023.  (The   
   > current version is 15.2 from December 2025.)  But I don't know about   
   > library support - that is a very different matter.  (Compiler support   
   > for printf really just means checking the format specifiers match the   
   > parameters.)   
      
   Of course printf is implemented in the library, not in the compiler.   
      
   gcc has had format checking for %wN and %wfN since release 13, but   
   that's useless in the absence of library support.   
      
   Support in glibc was added 2023-06-19 and released in version 2.39.   
   Other C library implementations may or may not support it.   
      
   [...]   
      
   --   
   Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com   
   void Void(void) { Void(); } /* The recursive call of the void */   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)