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[3.15] gh-149707: Fix compiler warning in _ctypes_test on strchr() (#149791) (#149865)

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gh-149707: Fix compiler warning in _ctypes_test on strchr() (#149791)

Change my_strchr() return type to "const char*" (add "const").

Fix the compiler warning:

Modules/_ctypes/_ctypes_test.c: In function 'my_strchr':
Modules/_ctypes/_ctypes_test.c:451:12: warning: return discards
'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
  451 |     return strchr(s, c);
      |            ^~~~~~

When using C23, strchr(text, ch) return type is "const char*" if text
type is "const char*".

(cherry picked from commit 5465b69255)
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Victor Stinner 2026-05-15 13:36:21 +02:00 • committed by GitHub
parent 5dadc64673
commit 8d32ae75d4
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Modules/_ctypes/_ctypes_test.c
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@ -446,7 +446,7 @@ EXPORT(char *)my_strtok(char *token, const char *delim)
return strtok(token, delim);
}
EXPORT(char *)my_strchr(const char *s, int c)
EXPORT(const char *) my_strchr(const char *s, int c)
{
return strchr(s, c);
}