github.com/afumu/libc@v0.0.6/musl/src/ctype/isxdigit.c (about)

     1  #include <ctype.h>
     2  
     3  int isxdigit(int c)
     4  {
     5  	return isdigit(c) || ((unsigned)c|32)-'a' < 6;
     6  }
     7  
     8  int __isxdigit_l(int c, locale_t l)
     9  {
    10  	return isxdigit(c);
    11  }
    12  
    13  weak_alias(__isxdigit_l, isxdigit_l);