+#if !defined(PERL_NO_INLINE_FUNCTIONS)
+PERL_STATIC_INLINE STRLEN S__is_utf8_char_slow(const U8 *s, const U8 *e)
+ __attribute__warn_unused_result__;
+#define PERL_ARGS_ASSERT__IS_UTF8_CHAR_SLOW \
+ assert(s); assert(e)
+
+PERL_STATIC_INLINE void S_append_utf8_from_native_byte(const U8 byte, U8** dest);
+#define PERL_ARGS_ASSERT_APPEND_UTF8_FROM_NATIVE_BYTE \
+ assert(dest)
+PERL_STATIC_INLINE SSize_t S_av_top_index(pTHX_ AV *av)
+ __attribute__warn_unused_result__;
+#define PERL_ARGS_ASSERT_AV_TOP_INDEX \
+ assert(av)
+
+PERL_STATIC_INLINE bool S_is_safe_syscall(pTHX_ const char *pv, STRLEN len, const char *what, const char *op_name)
+ __attribute__warn_unused_result__;
+#define PERL_ARGS_ASSERT_IS_SAFE_SYSCALL \
+ assert(pv); assert(what); assert(op_name)
+
+PERL_STATIC_INLINE bool S_sv_only_taint_gmagic(SV *sv);
+#define PERL_ARGS_ASSERT_SV_ONLY_TAINT_GMAGIC \
+ assert(sv)
+#endif