From cd9686e6bef2c69f0852d5ff84453b18111ef407 Mon Sep 17 00:00:00 2001
From: Thomas Voss <thomas.voss@humanwave.nl>
Date: Fri, 15 Mar 2024 13:04:56 +0100
Subject: Prefer surrounding attribute names with ‘__’
MIME-Version: 1.0
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Content-Transfer-Encoding: 8bit

---
 include/alloc.h    |  2 +-
 include/errors.h   | 17 +++++++++--------
 include/mbstring.h | 29 +++++++++++++++++++----------
 include/optparse.h |  5 +++--
 4 files changed, 32 insertions(+), 21 deletions(-)

(limited to 'include')

diff --git a/include/alloc.h b/include/alloc.h
index f96c28f..6eb2a30 100644
--- a/include/alloc.h
+++ b/include/alloc.h
@@ -3,7 +3,7 @@
 
 #include <stddef.h>
 
-[[gnu::returns_nonnull]] void *bufalloc(void *, size_t, size_t);
+[[gnu::__returns_nonnull__]] void *bufalloc(void *, size_t, size_t);
 void *bufalloc_noterm(void *, size_t, size_t);
 
 #endif /* !MLIB_ALLOC_H */
diff --git a/include/errors.h b/include/errors.h
index 6721afa..8484010 100644
--- a/include/errors.h
+++ b/include/errors.h
@@ -3,22 +3,23 @@
 
 #include <stdarg.h>
 
-[[gnu::format(printf, 1, 2)]] void warn(const char *, ...);
-[[gnu::format(printf, 1, 2)]] void warnx(const char *, ...);
+[[gnu::__format__(printf, 1, 2)]] void warn(const char *, ...);
+[[gnu::__format__(printf, 1, 2)]] void warnx(const char *, ...);
 void vwarn(const char *, va_list);
 void vwarnx(const char *, va_list);
 
-[[noreturn, gnu::format(printf, 1, 2)]] void err(const char *, ...);
-[[noreturn, gnu::format(printf, 1, 2)]] void errx(const char *, ...);
-[[noreturn, gnu::format(printf, 2, 3)]] void cerr(int, const char *, ...);
-[[noreturn, gnu::format(printf, 2, 3)]] void cerrx(int, const char *, ...);
+[[__noreturn__, gnu::__format__(printf, 1, 2)]] void err(const char *, ...);
+[[__noreturn__, gnu::__format__(printf, 1, 2)]] void errx(const char *, ...);
+[[__noreturn__, gnu::__format__(printf, 2, 3)]] void cerr(int, const char *,
+                                                          ...);
+[[__noreturn__, gnu::__format__(printf, 2, 3)]] void cerrx(int, const char *,
+                                                           ...);
 
 extern const char *__mlib_errors_progname;
 
 void mlib_setprogname(const char *);
 
-[[gnu::always_inline]]
-static inline const char *
+[[gnu::__always_inline__]] static inline const char *
 mlib_progname(void)
 {
 	return __mlib_errors_progname;
diff --git a/include/mbstring.h b/include/mbstring.h
index 98c8137..74a3767 100644
--- a/include/mbstring.h
+++ b/include/mbstring.h
@@ -29,19 +29,28 @@
 #define PRIsU8          ".*s"
 #define U8_PRI_ARGS(sv) ((int)(sv).len), ((sv).p)
 
-bool u8haspfx(const char8_t *, size_t, const char8_t *, size_t);
-bool u8hassfx(const char8_t *, size_t, const char8_t *, size_t);
-char8_t *u8chk(const char8_t *, size_t);
-char8_t *u8chr(const char8_t *, size_t, rune);
-char8_t *u8rchr(const char8_t *, size_t, rune);
+[[__nodiscard__]] bool u8haspfx(const char8_t *, size_t, const char8_t *,
+                                size_t);
+[[__nodiscard__]] bool u8hassfx(const char8_t *, size_t, const char8_t *,
+                                size_t);
+
+[[__nodiscard__]] char8_t *u8chk(const char8_t *, size_t);
+
+[[__nodiscard__]] char8_t *u8chr(const char8_t *, size_t, rune);
+[[__nodiscard__]] char8_t *u8rchr(const char8_t *, size_t, rune);
+
 int rtou8(char8_t *, size_t, rune);
-int u8cmp(const char8_t *, size_t, const char8_t *, size_t);
+int u8tor(rune *, const char8_t *);
+
+[[__nodiscard__]] int u8cmp(const char8_t *, size_t, const char8_t *, size_t);
+
 int u8next(rune *, const char8_t **, size_t *);
 int u8prev(rune *, const char8_t **, const char8_t *);
-int u8tor(rune *, const char8_t *);
-size_t u8cspn(const char8_t *, size_t, const rune *, size_t);
-size_t u8len(const char8_t *, size_t);
-size_t u8spn(const char8_t *, size_t, const rune *, size_t);
+
+[[__nodiscard__]] size_t u8spn(const char8_t *, size_t, const rune *, size_t);
+[[__nodiscard__]] size_t u8cspn(const char8_t *, size_t, const rune *, size_t);
+
+[[__nodiscard__]] size_t u8len(const char8_t *, size_t);
 
 #if !__MLIB_NO_MACRO_WRAPPER
 #	define u8chk(s, n)      __MLIB_Q_PTR(char8_t, u8chk, (s), (s), (n))
diff --git a/include/optparse.h b/include/optparse.h
index 6863980..62358df 100644
--- a/include/optparse.h
+++ b/include/optparse.h
@@ -29,9 +29,10 @@ struct op_option {
 	enum op_argkind argtype;
 };
 
-rune optparse(struct optparse *, const struct op_option *, size_t);
+[[__nodiscard__]] rune optparse(struct optparse *, const struct op_option *,
+                                size_t);
 
-[[gnu::always_inline]]
+[[gnu::__always_inline__]]
 static inline struct optparse
 mkoptparser(char **argv)
 {
-- 
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