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Use c99 static array size declarations in exported functions too

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It seems quite useful to provide this additional information in public exported
functions.

This is a c99 feature, not supported in C++. Without the check in _sd-common.h:
FAILED: test-bus-vtable-cc@exe/src_libsystemd_sd-bus_test-bus-vtable-cc.cc.o
...
In file included from ../src/libsystemd/sd-bus/test-bus-vtable-cc.cc:9:
In file included from ../src/systemd/sd-bus-vtable.h:26:
In file included from ../src/systemd/sd-bus.h:26:
../src/systemd/sd-id128.h:38:47: error: static array size is a C99 feature, not permitted in C++
char *sd_id128_to_string(sd_id128_t id, char s[static SD_ID128_STRING_MAX]);
                                              ^

In .c files, I opted to use the define for consistency, even though we don't support
compilation with a C++ compiler, so the unconditional keyword would work too.
This commit is contained in:
Zbigniew Jędrzejewski-Szmek
2019-01-04 12:37:25 +01:00
parent 3042bbebdd
commit 4199f6896a
5 changed files with 14 additions and 6 deletions
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src/libsystemd/sd-id128/sd-id128.c
+1 -1
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@@ -18,7 +18,7 @@
#include "user-util.h"
#include "util.h"
_public_ char *sd_id128_to_string(sd_id128_t id, char s[SD_ID128_STRING_MAX]) {
_public_ char *sd_id128_to_string(sd_id128_t id, char s[_SD_ARRAY_STATIC SD_ID128_STRING_MAX]) {
unsigned n;
assert_return(s, NULL);