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File _service:tar_scm:backport-clang-0039-stdio-Suppress-clang-warnings-for-tst-unlockedio-c.patch of Package glibc (Revision 756e0ca71b8eecd09f8ca555e0cce4dd)

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From e2291b785395f383da63feec174c4dd274868a38 Mon Sep 17 00:00:00 2001
From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Thu, 24 Mar 2022 16:03:16 -0300
Subject: [PATCH] stdio: Suppress clang warnings for tst-unlockedio.c

Clang issues the following warnings:

tst-unlockedio.c:63:36: error: implicit conversion from 'double' to
  'size_t' (aka 'unsigned long') changes value from -0 to 0
  [-Werror,-Wliteral-conversion]
        || fwrite_unlocked (blah, 0, -0.0, fp) != 0
           ~~~~~~~~~~~~~~~           ^~~~
  tst-unlockedio.c:61:33: error: implicit conversion from 'double' to
  'size_t' (aka 'unsigned long') changes value from 0.25 to 0
  [-Werror,-Wliteral-conversion]
        || fwrite_unlocked (--cp, 0.25, 16, fp) != 0
           ~~~~~~~~~~~~~~~        ^~~~
  tst-unlockedio.c:59:37: error: implicit conversion from 'double' to
  'size_t' (aka 'unsigned long') changes value from 0.25 to 0
  [-Werror,-Wliteral-conversion]
        || fwrite_unlocked (cp++, 16, 0.25, fp) != 0
           ~~~~~~~~~~~~~~~            ^~~~
  tst-unlockedio.c:116:34: error: implicit conversion from 'double' to
  'size_t' (aka 'unsigned long') changes value from -0 to 0
  [-Werror,-Wliteral-conversion]
        || fread_unlocked (buf, 0, -0.0, fp) != 0
           ~~~~~~~~~~~~~~          ^~~~
  tst-unlockedio.c:114:32: error: implicit conversion from 'double' to
  'size_t' (aka 'unsigned long') changes value from 0.25 to 0
  [-Werror,-Wliteral-conversion]
        || fread_unlocked (--wp, 0.25, 16, fp) != 0
           ~~~~~~~~~~~~~~        ^~~~
  tst-unlockedio.c:112:36: error: implicit conversion from 'double' to
  'size_t' (aka 'unsigned long') changes value from 0.25 to 0
  [-Werror,-Wliteral-conversion]
        || fread_unlocked (wp++, 16, 0.25, fp) != 0
           ~~~~~~~~~~~~~~            ^~~~
---
 stdio-common/tst-unlockedio.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/stdio-common/tst-unlockedio.c b/stdio-common/tst-unlockedio.c
index 67a7d621f5..c9c55fdad2 100644
--- a/stdio-common/tst-unlockedio.c
+++ b/stdio-common/tst-unlockedio.c
@@ -51,6 +51,9 @@ do_test (void)
      fread_unlocked below as well.  */
   DIAG_PUSH_NEEDS_COMMENT;
   DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wdiv-by-zero");
+  /* clang warns about the implicit conversion from double to size_t,
+     which is required by this tests.  */
+  DIAG_IGNORE_NEEDS_COMMENT_CLANG (13, "-Wliteral-conversion");
   if (ftello (fp) != 0
       || fwrite_unlocked (blah, blah - blah, strlen (blah), f++) != 0
       || f != fp + 1
@@ -104,6 +107,7 @@ do_test (void)
   /* See explanation above.  */
   DIAG_PUSH_NEEDS_COMMENT;
   DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wdiv-by-zero");
+  DIAG_IGNORE_NEEDS_COMMENT_CLANG (13, "-Wliteral-conversion");
   if (ftello (fp) != 0
       || fread_unlocked (buf, buf - buf, strlen (blah), f++) != 0
       || f != fp + 1
-- 
2.39.3