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[binutils-gdb] [C++/mingw] ser-tcp.c casts
- From: Pedro Alves <palves at sourceware dot org>
- To: gdb-cvs at sourceware dot org
- Date: 17 Nov 2015 15:26:54 -0000
- Subject: [binutils-gdb] [C++/mingw] ser-tcp.c casts
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=69e976f8cc902adc5ee8aec24e4a208f4afd51b3
commit 69e976f8cc902adc5ee8aec24e4a208f4afd51b3
Author: Pedro Alves <palves@redhat.com>
Date: Tue Nov 17 15:17:45 2015 +0000
[C++/mingw] ser-tcp.c casts
Fixes a few errors like these:
../../src/gdb/ser-tcp.c: In function 'int net_open(serial*, const char*)':
../../src/gdb/ser-tcp.c:286:73: error: invalid conversion from 'void*' to 'char*' [-fpermissive]
res = getsockopt (scb->fd, SOL_SOCKET, SO_ERROR, (void *) &err, &len);
^
gdb/ChangeLog:
2015-11-17 Pedro Alves <palves@redhat.com>
* ser-tcp.c (net_open) : Cast getsockopt argument to char *
instead of void *. Update comment.
(net_read_prim): Cast recv argument to char * instead of void *.
(net_write_prim): Cast send argument to char *. Add comment.
Diff:
---
gdb/ChangeLog | 7 +++++++
gdb/ser-tcp.c | 16 ++++++++++------
2 files changed, 17 insertions(+), 6 deletions(-)
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index ddd17a7..3bec8cb 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,12 @@
2015-11-17 Pedro Alves <palves@redhat.com>
+ * ser-tcp.c (net_open) : Cast getsockopt argument to char *
+ instead of void *. Update comment.
+ (net_read_prim): Cast recv argument to char * instead of void *.
+ (net_write_prim): Cast send argument to char *. Add comment.
+
+2015-11-17 Pedro Alves <palves@redhat.com>
+
* win32-i386-low.c (update_debug_registers_callback)
(win32_get_current_dr): Add cast.
* win32-low.c (thread_rec, delete_thread_info)
diff --git a/gdb/ser-tcp.c b/gdb/ser-tcp.c
index ce40b61..36196f3 100644
--- a/gdb/ser-tcp.c
+++ b/gdb/ser-tcp.c
@@ -280,10 +280,10 @@ net_open (struct serial *scb, const char *name)
len = sizeof (err);
/* On Windows, the fourth parameter to getsockopt is a "char *";
- on UNIX systems it is generally "void *". The cast to "void *"
- is OK everywhere, since in C "void *" can be implicitly
- converted to any pointer type. */
- res = getsockopt (scb->fd, SOL_SOCKET, SO_ERROR, (void *) &err, &len);
+ on UNIX systems it is generally "void *". The cast to "char *"
+ is OK everywhere, since in C++ any data pointer type can be
+ implicitly converted to "void *". */
+ res = getsockopt (scb->fd, SOL_SOCKET, SO_ERROR, (char *) &err, &len);
if (res < 0 || err)
{
/* Maybe the target still isn't ready to accept the connection. */
@@ -342,13 +342,17 @@ net_read_prim (struct serial *scb, size_t count)
/* Need to cast to silence -Wpointer-sign on MinGW, as Winsock's
'recv' takes 'char *' as second argument, while 'scb->buf' is
'unsigned char *'. */
- return recv (scb->fd, (void *) scb->buf, count, 0);
+ return recv (scb->fd, (char *) scb->buf, count, 0);
}
int
net_write_prim (struct serial *scb, const void *buf, size_t count)
{
- return send (scb->fd, buf, count, 0);
+ /* On Windows, the second parameter to send is a "const char *"; on
+ UNIX systems it is generally "const void *". The cast to "const
+ char *" is OK everywhere, since in C++ any data pointer type can
+ be implicitly converted to "const void *". */
+ return send (scb->fd, (const char *) buf, count, 0);
}
int