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Diffstat (limited to 'arm_compute/core/Helpers.h')
| -rw-r--r-- | arm_compute/core/Helpers.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arm_compute/core/Helpers.h b/arm_compute/core/Helpers.h index 09c672ecfa..8f1426a56e 100644 --- a/arm_compute/core/Helpers.h +++ b/arm_compute/core/Helpers.h @@ -801,6 +801,19 @@ inline T wrap_around(T x, T m) return x >= 0 ? x % m : (x % m + m) % m; } +/** Convert a dimension axis to the number of dimensions in the range [0, @p dim_axis] + * Handle negative axis, negative axis is used to specify axis from the end (e.g. -1 for the last axis). + * + * @param[in] dim_axis The last axis (inclusive) in the range [0, @p dim_axis] + * @param[in] num_dims The total number of dimensions + * + * @return The number of dimensions in the range [0, @p dim_axis] + */ +inline size_t dim_index_2_num_dims(int32_t dim_axis, int32_t num_dims) +{ + return static_cast<size_t>(wrap_around(dim_axis, num_dims)) + 1; +} + /** Convert negative coordinates to positive in the range [0, num_dims_input] * * @param[out] coords Array of coordinates to be converted. |