cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations uchar/c16rtomb.c -o uchar/c16rtomb -D_POSIX_C_SOURCE=202405L -lm -lpthread -lnetwork -lbsd -latomic
uchar/c16rtomb.c:5:64: error: initialization of 'size_t (*)(char * restrict,  char16_t,  mbstate_t * restrict)' {aka 'long unsigned int (*)(char * restrict,  short unsigned int,  mbstate_t * restrict)'} from incompatible pointer type 'size_t (*)(char *, char32_t,  mbstate_t *)' {aka 'long unsigned int (*)(char *, unsigned int,  mbstate_t *)'} [-Werror=incompatible-pointer-types]
    5 | size_t (*foo)(char *restrict, char16_t, mbstate_t *restrict) = c16rtomb;
      |                                                                ^~~~~~~~
cc1: all warnings being treated as errors