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include/logging: Avoid subtraction on void pointers

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Avoid subtraction on void pointers.
void* pointer arithmetic is not allowed by C standard and also C++.
If you include "logging/log.h" into a C++ application it fails to
build.

Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
This commit is contained in:
Yannis Damigos 2018-09-26 21:03:54 +03:00 • committed by Anas Nashif
commit ab8d0c4f9d
1 changed files with 2 additions and 2 deletions
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4
include/logging/log_core.h
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@ -335,7 +335,7 @@ static inline u8_t log_compiled_level_get(u32_t source_id)
static inline u32_t log_const_source_id(
const struct log_source_const_data *data)
{
return ((void *)data - (void *)__log_const_start)/
return ((char *)data - (char *)__log_const_start)/
sizeof(struct log_source_const_data);
}
@ -377,7 +377,7 @@ static inline u32_t *log_dynamic_filters_get(u32_t source_id)
*/
static inline u32_t log_dynamic_source_id(struct log_source_dynamic_data *data)
{
return ((void *)data - (void *)__log_dynamic_start)/
return ((char *)data - (char *)__log_dynamic_start)/
sizeof(struct log_source_dynamic_data);
}