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| author |   Thierry Bultel <thierry.bultel@iot.bzh> | 2018-05-24 10:03:20 +0200 |
|---|---|---|
| committer | Thierry Bultel <thierry.bultel@iot.bzh> | 2018-05-25 14:12:22 +0200 |
| commit | f250572fe276f2b0a702294fb5754eb2b9e622de (patch) | |
| tree | 175c113be8832c2cc1ec6845d1e0d11fa3d0da20 | |
| parent | f9f7e1e3d394024484df41e3d97d6b8505810f36 (diff) | |
Added afb-helpers-utils.h
Added this file to some useful macros, the first one here is INT_STR_MAX that
permits to get rid of a warning with gcc >= 7.2.0
Change-Id: I768d216ab5494d346d5ee6e0df66f93410bfab57
Signed-off-by: Thierry Bultel <thierry.bultel@iot.bzh>
| -rw-r--r-- | afb-helpers-utils.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/afb-helpers-utils.h b/afb-helpers-utils.h new file mode 100644 index 0000000..d180f08 --- /dev/null +++ b/afb-helpers-utils.h @@ -0,0 +1,17 @@ +#ifndef AFB_HELPERS_UTILS_H +#define AFB_HELPERS_UTILS_H + +#include <limits.h> + +#define xstr(s) str(s) +#define str(s) #s + +/* with gcc >= 7.2.0, this macro is useful when printing an int with snprintf: + * + * char[INT_STR_MAX]; // smaller value leads to a warning + * snprintf(targetS, sizeof (targetS), "%d", target); + * */ + +#define INT_STR_MAX sizeof(xstr(INT_MAX)) + +#endif /* AFB_HELPERS_UTILS_H */ |