For what you need data from SCNXN and PRIXN macros. For example:

#include & lt; inttypes.h & gt;
// in data reading
uint32_t code_point;
FSCANF (IN, "%" SCNX32, & amp; code_point);
PrintF ("%" Prix32, Code_Point);

Answer 1, Authority 100%

We look at how they are set in & lt; inttypes.h & gt; :

# define prix32 "x"
...
# DEFINE SCNX32 "X"

i.e. Instead, in this example, “X” and:

will be affixed

fscanf (in, "%" SCNX32, & amp; code_point);
PrintF ("%" Prix32, Code_Point);

will be:

fscanf (in, "% x", & amp; code_point);
PrintF ("% x", code_point);

And the % x manifests the number in the sixdenta mapping.