NAME

       fmt_copybytes_sizeof_minus1 - write binary data

SYNTAX

       #include <libowfat/fmt.h>

       size_t fmt_copybytes_sizeof_minus1(char *dest,const char *source);

DESCRIPTION

       This macro will copy sizeof(source)-1 bytes from source to dest.

       This  is  a  convenience  wrapper  interface around fmt_copybytes for the situation where you construct a
       binary message by concatenating hex constant strings like this:

         fmt_copybytes_sizeof_minus1(dest, "\x01\x02\x03\x04");

       Since the source is technically a string, the compiler will add a 0 byte and  sizeof()  will  return  the
       size  including  that  0 byte. That is why we have a minus 1 in this function, so we do not copy or count
       that 0 byte.

NOTE

       Caution: source must not have side effects or those will be evaluated twice.

SEE ALSO

       fmt_copybytes(3)

                                                                                  fmt_copybytes_sizeof_minus1(3)