diff options
| author | Bastien Montagne <montagne29@wanadoo.fr> | 2015-10-20 15:39:08 +0300 |
|---|---|---|
| committer | Bastien Montagne <montagne29@wanadoo.fr> | 2015-10-20 15:44:15 +0300 |
| commit | dcb56d79a87966d93fe0509e64ab51eb90c1d486 (patch) | |
| tree | 7bb37fb0e067bf8ee433c0180a7b6759199c45c6 /source/blender/blenlib/BLI_utildefines.h | |
| parent | f08dad0e03ffafab925a4b7f2226bab580e79f7b (diff) | |
BLI: add new 'memory_utils' module with func checking a whole memory chunk is filled of zero,
and an helper to ensure all memory of a given structure passed a given member is filled of zero.
Diffstat (limited to 'source/blender/blenlib/BLI_utildefines.h')
| -rw-r--r-- | source/blender/blenlib/BLI_utildefines.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/source/blender/blenlib/BLI_utildefines.h b/source/blender/blenlib/BLI_utildefines.h index df6f578f3f2..31852fa0f43 100644 --- a/source/blender/blenlib/BLI_utildefines.h +++ b/source/blender/blenlib/BLI_utildefines.h @@ -513,6 +513,17 @@ extern "C" { sizeof(*(struct_var)) - OFFSETOF_STRUCT(struct_var, member)); \ } (void)0 +/* defined + * in memory_utils.c for now. I do not know where we should put it actually... */ +#ifndef __BLI_MEMORY_UTILS_H__ +extern bool BLI_memory_is_zero(const void *arr, const size_t arr_size); +#endif + +#define MEMCMP_STRUCT_OFS_IS_ZERO(struct_var, member) \ + (BLI_memory_is_zero( \ + (char *)(struct_var) + OFFSETOF_STRUCT(struct_var, member), \ + sizeof(*(struct_var)) - OFFSETOF_STRUCT(struct_var, member))) + /* Warning-free macros for storing ints in pointers. Use these _only_ * for storing an int in a pointer, not a pointer in an int (64bit)! */ #define SET_INT_IN_POINTER(i) ((void *)(intptr_t)(i)) |