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

     1  #include <ctype.h>
     2  
     3  int isalnum(int c)
     4  {
     5  	return isalpha(c) || isdigit(c);
     6  }
     7  
     8  int __isalnum_l(int c, locale_t l)
     9  {
    10  	return isalnum(c);
    11  }
    12  
    13  weak_alias(__isalnum_l, isalnum_l);