src/common/common.h: do not use `void *` in arithmetic

This avoids a G++ warning:

> common.h:445:22: warning: pointer of type ‘void *’ used in arithmetic
> [-Wpointer-arith]

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Change-Id: I71bad4b54a0aa3baa806e5c29e060d0047c007f2
Reviewed-on: https://review.lttng.org/c/babeltrace/+/4566
Reviewed-by: Simon Marchi <simon.marchi@efficios.com>

diff --git a/src/common/common.h b/src/common/common.h
index c8b9bb8b163b10629b6c781e154affce3f32a301..5266404c934e9e945a129a08c122ecc6cd4f3889 100644 (file)
--- a/src/common/common.h
+++ b/src/common/common.h
@@ -442,7 +442,7 @@ ssize_t bt_common_read(int fd, void *buf, size_t count, int log_level)
        BT_ASSERT_DBG(count <= SSIZE_MAX);
 
        do {
-               ret = read(fd, buf + i, count - i);
+               ret = read(fd, ((char *) buf) + i, count - i);
                if (ret < 0) {
                        if (errno == EINTR) {
 #ifdef BT_LOG_WRITE_CUR_LVL