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Diffstat (limited to 'chapters/introduction.adoc')
| -rw-r--r-- | chapters/introduction.adoc | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/chapters/introduction.adoc b/chapters/introduction.adoc index 3fb5476..51d085d 100644 --- a/chapters/introduction.adoc +++ b/chapters/introduction.adoc @@ -304,8 +304,13 @@ The following function maps an index in the output tensor to an index in the inp [source,c++] ---- +// The index argument should be a valid location within out_shape. +// The function returns the location within in_shape that contributes +// to the output based on broadcasting rules. + dim_t apply_broadcast(dim_t out_shape, dim_t in_shape, dim_t index) { ERROR_IF(rank(out_shape) != rank(in_shape)); + ERROR_IF(rank(out_shape) != rank(index)); for (i = 0; i < rank(out_shape); i++) { if (out_shape[i] != in_shape[i]) { ERROR_IF(in_shape[i] != 1); |