---
title: "ClikaRT::nn::BCEWithLogitsLoss"
sidebar_label: "BCEWithLogitsLoss"
description: "Binary cross entropy over logits: the sigmoid fused with the loss in one stable pass."
---

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**Header:** `ClikaRT/nn/generated/loss.h`  
**Inherits:** [`ClikaRT::nn::Module`](./Module.md)

Binary cross entropy over logits: the sigmoid fused with the loss in one stable pass. The module form of [`ClikaRT::ops::binary_cross_entropy_with_logits`](../ops/binary_cross_entropy_with_logits.md#binary_cross_entropy_with_logits), which documents the full contract (shapes, dtypes, errors); construct once, then call it like a function.

## Member functions

### BCEWithLogitsLoss() {#BCEWithLogitsLoss}

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`explicit` **`BCEWithLogitsLoss`**([`BCEWithLogitsLossOptions`](./BCEWithLogitsLossOptions.md) `options` `=` `{}`)

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Constructs the module from [`options`](./BCEWithLogitsLoss.md#options) (every default when omitted).

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Declared in `ClikaRT/nn/generated/loss.h`, line 538

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### forward() {#forward}

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[`Tensor`](../Tensor.md) **`forward`**([`Tensor`](../Tensor.md) `input`, [`Tensor`](../Tensor.md) `target`) `const`

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[`forward_impl`](./BCEWithLogitsLoss.md#forward), unwrapped: raises [`ClikaRT::Error`](../Error.md) on failure.

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Declared in `ClikaRT/nn/generated/loss.h`, line 555

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### operator()() {#operator-call}

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[`Tensor`](../Tensor.md) **`operator()`**([`Tensor`](../Tensor.md) `input`, [`Tensor`](../Tensor.md) `target`) `const`

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Same as [`forward`](./BCEWithLogitsLoss.md#forward).

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Declared in `ClikaRT/nn/generated/loss.h`, line 559

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### options() {#options}

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`const` [`BCEWithLogitsLossOptions`](./BCEWithLogitsLossOptions.md)`&` **`options`**() `const`

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The settings this module was constructed with.

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Declared in `ClikaRT/nn/generated/loss.h`, line 563

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