Modify and use FILL_ARRAY macro to prevent warning on GCC 7

Following warning was given and is false positive

error: 'memset' used with length equal to number of elements without multiplication by element size [-Werror=memset-elt-size]
This commit is contained in:
Ari Lemmetti 2017-04-11 12:57:22 +03:00
parent f7e01b8ba1
commit 47a9f0de04
2 changed files with 9 additions and 5 deletions

View file

@ -219,7 +219,11 @@ typedef int16_t coeff_t;
// Fill a structure or a static array with val bytes.
#define FILL(var, val) memset(&(var), (val), sizeof(var))
// Fill a number of elements in an array with val bytes.
#define FILL_ARRAY(ar, val, size) memset((ar), (val), (size) * sizeof(*(ar)))
#define FILL_ARRAY(ar, val, size) \
{\
void *temp_ptr = (void*)(ar);\
memset((temp_ptr), (val), (size) * sizeof(*(ar)));\
}
#define FREE_POINTER(pointer) { free((void*)pointer); pointer = NULL; }
#define MOVE_POINTER(dst_pointer,src_pointer) { dst_pointer = src_pointer; src_pointer = NULL; }

View file

@ -558,10 +558,10 @@ void kvz_rdoq(encoder_state_t * const state, coeff_t *coef, coeff_t *dest_coeff,
// Explicitly tell the only possible numbers of elements to be zeroed.
// Hope the compiler is able to utilize this information.
switch (cg_num) {
case 1: memset(sig_coeffgroup_flag, 0, 1 * sizeof(sig_coeffgroup_flag[0])); break;
case 4: memset(sig_coeffgroup_flag, 0, 4 * sizeof(sig_coeffgroup_flag[0])); break;
case 16: memset(sig_coeffgroup_flag, 0, 16 * sizeof(sig_coeffgroup_flag[0])); break;
case 64: memset(sig_coeffgroup_flag, 0, 64 * sizeof(sig_coeffgroup_flag[0])); break;
case 1: FILL_ARRAY(sig_coeffgroup_flag, 0, 1); break;
case 4: FILL_ARRAY(sig_coeffgroup_flag, 0, 4); break;
case 16: FILL_ARRAY(sig_coeffgroup_flag, 0, 16); break;
case 64: FILL_ARRAY(sig_coeffgroup_flag, 0, 64); break;
default: assert(0 && "There should be 1, 4, 16 or 64 coefficient groups");
}