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| author | Quentin Young <qlyoung@users.noreply.github.com> | 2021-07-05 06:13:20 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-07-05 06:13:20 +0200 |
| commit | 71bae95e4aa78a5f269d7d26171911169e0810b1 (patch) | |
| tree | 36a3633d7eddd2d549366a5f8883d7868bacea8a /lib/compiler.h | |
| parent | Merge pull request #7674 from oerdnj/embedded-deb-packages (diff) | |
| parent | doc: space code block (diff) | |
| download | frr-71bae95e4aa78a5f269d7d26171911169e0810b1.tar.xz frr-71bae95e4aa78a5f269d7d26171911169e0810b1.zip | |
Merge pull request #8888 from dlqs/lua-call
Diffstat (limited to 'lib/compiler.h')
| -rw-r--r-- | lib/compiler.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/lib/compiler.h b/lib/compiler.h index 970ed297f..bf443906e 100644 --- a/lib/compiler.h +++ b/lib/compiler.h @@ -173,6 +173,29 @@ extern "C" { #define MACRO_REPEAT(NAME, ...) \ MACRO_VARIANT(_MACRO_REPEAT, ##__VA_ARGS__)(NAME, ##__VA_ARGS__) +/* per-arglist repeat macro, use like this: + * #define foo(...) MAP_LISTS(F, ##__VA_ARGS__) + * where F is a n-ary function where n is the number of args in each arglist. + * e.g.: MAP_LISTS(f, (a, b), (c, d)) + * expands to: f(a, b); f(c, d) + */ + +#define ESC(...) __VA_ARGS__ +#define MAP_LISTS(M, ...) \ + _CONCAT(_MAP_LISTS_, PP_NARG(__VA_ARGS__))(M, ##__VA_ARGS__) +#define _MAP_LISTS_0(M) +#define _MAP_LISTS_1(M, _1) ESC(M _1) +#define _MAP_LISTS_2(M, _1, _2) ESC(M _1; M _2) +#define _MAP_LISTS_3(M, _1, _2, _3) ESC(M _1; M _2; M _3) +#define _MAP_LISTS_4(M, _1, _2, _3, _4) ESC(M _1; M _2; M _3; M _4) +#define _MAP_LISTS_5(M, _1, _2, _3, _4, _5) ESC(M _1; M _2; M _3; M _4; M _5) +#define _MAP_LISTS_6(M, _1, _2, _3, _4, _5, _6) \ + ESC(M _1; M _2; M _3; M _4; M _5; M _6) +#define _MAP_LISTS_7(M, _1, _2, _3, _4, _5, _6, _7) \ + ESC(M _1; M _2; M _3; M _4; M _5; M _6; M _7) +#define _MAP_LISTS_8(M, _1, _2, _3, _4, _5, _6, _7, _8) \ + ESC(M _1; M _2; M _3; M _4; M _5; M _6; M _7; M _8) + /* * for warnings on macros, put in the macro content like this: * #define MACRO BLA CPP_WARN("MACRO has been deprecated") |