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* [newlib-cygwin] libc: fix fropen/fwopen compile warnings
@ 2022-12-07 12:20 Corinna Vinschen
0 siblings, 0 replies; only message in thread
From: Corinna Vinschen @ 2022-12-07 12:20 UTC (permalink / raw)
To: newlib-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=0b09753a3f0c17164c877cf5ae9ebbc617bcf302
commit 0b09753a3f0c17164c877cf5ae9ebbc617bcf302
Author: Alexey Lapshin <alexey.lapshin@espressif.com>
AuthorDate: Wed Dec 7 10:59:23 2022 +0000
Commit: Corinna Vinschen <corinna@vinschen.de>
CommitDate: Wed Dec 7 13:10:24 2022 +0100
libc: fix fropen/fwopen compile warnings
This patch fixes warnings that appears when compiling:
#define fwopen(__cookie,__fn) funopen(__cookie, (int (*)())0, __fn,
(fpos_t (*)())0, (int (*)())0)
Expands to:
funopen(__null, (int (*)())0, &app_printf, (fpos_t (*)())0, (int
(*)())0)
argument of type "int (*)()" is incompatible with parameter of type
"int (*)(void *__cookie, char *__buf, int __n)"C/C++(167)
invalid conversion from 'fpos_t (*)()' {aka 'long int (*)()'} to
'fpos_t (*)(void*, fpos_t, int)' {aka 'long int (*)(void*,
Discussion is here:
https://github.com/espressif/arduino-esp32/issues/7407
Diff:
---
newlib/libc/include/stdio.h | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/newlib/libc/include/stdio.h b/newlib/libc/include/stdio.h
index ea4ddf3293d0..77966578d802 100644
--- a/newlib/libc/include/stdio.h
+++ b/newlib/libc/include/stdio.h
@@ -620,10 +620,8 @@ FILE *_funopen_r (struct _reent *, const void *__cookie,
int (*__closefn)(void *__cookie));
# endif /* !__LARGE64_FILES */
-# define fropen(__cookie, __fn) funopen(__cookie, __fn, (int (*)())0, \
- (fpos_t (*)())0, (int (*)())0)
-# define fwopen(__cookie, __fn) funopen(__cookie, (int (*)())0, __fn, \
- (fpos_t (*)())0, (int (*)())0)
+# define fropen(__cookie, __fn) funopen(__cookie, __fn, NULL, NULL, NULL)
+# define fwopen(__cookie, __fn) funopen(__cookie, NULL, __fn, NULL, NULL)
#endif /* __BSD_VISIBLE */
#if __GNU_VISIBLE
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