perror 180 uspace/lib/c/include/stdio.h extern void perror(const char *); perror 210 uspace/lib/c/test/stdio.c perror(NULL); perror 217 uspace/lib/c/test/stdio.c perror(""); perror 224 uspace/lib/c/test/stdio.c perror("This is a test"); perror 180 uspace/lib/posix/include/libc/stdio.h extern void perror(const char *);HelenOS homepage, sources at GitHub