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Merge pull request #12397 from opensourcerouting/vscode-intro

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lib: handle visual studio code C/C++ extension
This commit is contained in:
Donald Sharp 2022-12-01 11:01:45 -05:00 committed by GitHub
commit 5eb310087b
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2 changed files with 39 additions and 16 deletions
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39
lib/compiler.h
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@ -72,6 +72,16 @@ extern "C" {
#endif
#endif
#ifdef __INTELLISENSE__
/*
* Fix Visual Studio Code error: attribute "constructor" does not take
* arguments.
*
* Caused by the macro `DEFINE_MTYPE_ATTR` in `lib/memory.h`.
*/
#pragma diag_suppress 1094
#endif /* __INTELISENSE__ */
#if __has_attribute(hot)
# define _OPTIMIZE_HOT __attribute__((hot))
#else
@ -411,6 +421,35 @@ _Static_assert(sizeof(_uint64_t) == 8 && sizeof(_int64_t) == 8,
#endif /* !__cplusplus */
#endif /* !_FRR_ATTRIBUTE_PRINTFRR */
/* helper to get type safety/avoid casts on calls
* (w/o this, functions accepting all prefix types need casts on the caller
* side, which strips type safety since the cast will accept any pointer
* type.)
*/
#ifndef __cplusplus
#define prefixtype(uname, typename, fieldname) typename *fieldname;
#define TRANSPARENT_UNION __attribute__((transparent_union))
#else
#define prefixtype(uname, typename, fieldname) \
typename *fieldname; \
uname(typename *x) \
{ \
this->fieldname = x; \
}
#define TRANSPARENT_UNION
#endif
#ifdef __INTELLISENSE__
/*
* Fix Visual Studio Code error: argument of type "struct prefix *" is
* incompatible with parameter of type "union prefixptr".
*
* This is caused by all functions having the transparent unions in the
* prototype. Example: `prefixptr` and `prefixconstptr` from `lib/prefix.h`.
*/
#pragma diag_suppress 167
#endif /* __INTELISENSE__ */
#ifdef __cplusplus
}
#endif

16
lib/prefix.h
View File

@ -301,22 +301,6 @@ struct prefix_sg {
struct in_addr grp;
};
/* helper to get type safety/avoid casts on calls
* (w/o this, functions accepting all prefix types need casts on the caller
* side, which strips type safety since the cast will accept any pointer
* type.)
*/
#ifndef __cplusplus
#define prefixtype(uname, typename, fieldname) \
typename *fieldname;
#define TRANSPARENT_UNION __attribute__((transparent_union))
#else
#define prefixtype(uname, typename, fieldname) \
typename *fieldname; \
uname(typename *x) { this->fieldname = x; }
#define TRANSPARENT_UNION
#endif
union prefixptr {
prefixtype(prefixptr, struct prefix, p)
prefixtype(prefixptr, struct prefix_ipv4, p4)