libretro/RetroArch
1
0
Fork 0
mirror of https://github.com/libretro/RetroArch.git synced 2024-12-03 13:51:02 +00:00
Code Issues Actions 23 Packages Projects Releases Wiki Activity

Add rarch_bits_t.

Browse Source
This commit is contained in:
Themaister 2013-03-10 01:43:19 +01:00
parent f8f384d8b3
commit 7b6bf22ac6
1 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
general.h
View File

@ -791,6 +791,18 @@ static inline void rarch_fail(int error_code, const char *error)
longjmp(g_extern.error_sjlj_context, error_code);
}
// Helper macros and struct to keep track of many booleans.
// To check for multiple bits, use &&, not &.
// For OR, | can be used.
typedef struct
{
uint32_t data[8];
} rarch_bits_t;
#define BIT_SET(a, bit) ((a).data[(bit) >> 5] |= 1 << ((bit) & 31))
#define BIT_CLEAR(a, bit) ((a).data[(bit) >> 5] &= ~(1 << ((bit) & 31)))
#define BIT_GET(a, bit) ((a).data[(bit) >> 5] & (1 << ((bit) & 31)))
#define BIT_CLEAR_ALL(a) memset(&(a), 0, sizeof(a));
#endif