.SH ̾Á°
getresuid, getresgid \- ¼Â¡¢¼Â¸ú¡¢Êݸ¡¢¥æ¡¼¥¶¡¼ ID / ¥°¥ë¡¼¥× ID ¤ò¼èÆÀ¤¹¤ë
.SH ½ñ¼°
-.B #define _GNU_SOURCE
+.BR "#define _GNU_SOURCE" " /* feature_test_macros(7) »²¾È */"
.br
.B #include <unistd.h>
.sp
.BR setresuid (2),
.BR setreuid (2),
.BR setuid (2),
-.BR credentials (7),
-.BR feature_test_macros (7)
+.BR credentials (7)