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include/bluetooth: rearrange for standard use of extern "C"

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Consistently place C++ use of extern "C" after all include directives,
within the negative branch of _ASMLANGUAGE if used.

Background from issue #17997:

Declarations that use C linkage should be placed within extern "C"
so the language linkage is correct when the header is included by
a C++ compiler.

Similarly #include directives should be outside the extern "C" to
ensure the language-specific default linkage is applied to any
declarations provided by the included header.

See: https://en.cppreference.com/w/cpp/language/language_linkage
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
This commit is contained in:
Peter Bigot 2019-08-12 12:54:12 -05:00 • committed by Carles Cufí
commit 5412409781
9 changed files with 26 additions and 27 deletions
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4
subsys/bluetooth/common/log.h
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@ -14,6 +14,7 @@
#include <linker/sections.h>
#include <offsets.h>
#include <zephyr.h>
#include <logging/log.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/hci.h>
@ -32,8 +33,6 @@ extern "C" {
#define LOG_LEVEL CONFIG_BT_LOG_LEVEL
#endif
#include <logging/log.h>
LOG_MODULE_REGISTER(LOG_MODULE_NAME);
#define BT_DBG(fmt, ...) LOG_DBG(fmt, ##__VA_ARGS__)
@ -62,4 +61,3 @@ const char *bt_addr_le_str_real(const bt_addr_le_t *addr);
#endif
#endif /* __BT_LOG_H */