1 files changed, 386 insertions, 386 deletions

diff --git a/src/core/kernel.c b/src/core/kernel.c
index def0782..377982f 100644
--- a/src/core/kernel.c
+++ b/src/core/kernel.c
@@ -8,598 +8,598 @@
 
 static char* dup_string(const char* s)
 {
-	size_t n = strlen(s) + 1;
-	char* p = malloc(n);
-	assert(p != NULL);
-	memcpy(p, s, n);
+    size_t n = strlen(s) + 1;
+    char* p = malloc(n);
+    assert(p != NULL);
+    memcpy(p, s, n);
 
-	return p;
+    return p;
 }
 
 static size_t* dup_targets(const size_t* targets, size_t count)
 {
-	size_t* p = malloc(count * sizeof(size_t));
-	assert(p != NULL || count == 0);
+    size_t* p = malloc(count * sizeof(size_t));
+    assert(p != NULL || count == 0);
 
-	if (count > 0)
-		memcpy(p, targets, count * sizeof(size_t));
+    if (count > 0)
+        memcpy(p, targets, count * sizeof(size_t));
 
-	return p;
+    return p;
 }
 
 static bool starts_with(const char* s, const char* prefix)
 {
-	return strncmp(s, prefix, strlen(prefix)) == 0;
+    return strncmp(s, prefix, strlen(prefix)) == 0;
 }
 
 static enum PsiGateType detect_gate_type(const char* name, struct PsiMatrix matrix)
 {
-	static const char* diagonal[] = { "Z", "S",  "T",  "Sdg", "Tdg", "Rz",
-	                                  "P", "U1", "CZ", "CP",  "CRz" };
-	for (size_t i = 0; i < sizeof(diagonal) / sizeof(diagonal[0]); i++)
-		if (starts_with(name, diagonal[i]))
-			return PSI_GATE_TYPE_DIAGONAL;
+    static const char* diagonal[] = { "Z", "S",  "T",  "Sdg", "Tdg", "Rz",
+                                      "P", "U1", "CZ", "CP",  "CRz" };
+    for (size_t i = 0; i < sizeof(diagonal) / sizeof(diagonal[0]); i++)
+        if (starts_with(name, diagonal[i]))
+            return PSI_GATE_TYPE_DIAGONAL;
 
-	static const char* controlled[] = { "CNOT", "CZ", "SWAP",  "CRx",  "CRy",
-	                                    "CRz",  "CP", "CCNOT", "CSWAP" };
-	for (size_t i = 0; i < sizeof(controlled) / sizeof(controlled[0]); i++)
-		if (starts_with(name, controlled[i]))
-			return PSI_GATE_TYPE_CONTROLLED;
+    static const char* controlled[] = { "CNOT", "CZ", "SWAP",  "CRx",  "CRy",
+                                        "CRz",  "CP", "CCNOT", "CSWAP" };
+    for (size_t i = 0; i < sizeof(controlled) / sizeof(controlled[0]); i++)
+        if (starts_with(name, controlled[i]))
+            return PSI_GATE_TYPE_CONTROLLED;
 
-	if (matrix.rows == 2 && matrix.cols == 2)
-	{
-		bool is_diag = fabs(matrix.data[1].real) < 1e-10 &&
-				fabs(matrix.data[1].imaginary) < 1e-10 && fabs(matrix.data[2].real) < 1e-10 &&
-				fabs(matrix.data[2].imaginary) < 1e-10;
-		if (is_diag)
-			return PSI_GATE_TYPE_DIAGONAL;
-	}
+    if (matrix.rows == 2 && matrix.cols == 2)
+    {
+        bool is_diag = fabs(matrix.data[1].real) < 1e-10 &&
+                fabs(matrix.data[1].imaginary) < 1e-10 && fabs(matrix.data[2].real) < 1e-10 &&
+                fabs(matrix.data[2].imaginary) < 1e-10;
+        if (is_diag)
+            return PSI_GATE_TYPE_DIAGONAL;
+    }
 
-	return PSI_GATE_TYPE_NON_DIAGONAL;
+    return PSI_GATE_TYPE_NON_DIAGONAL;
 }
 
 struct PsiKernel psi_new_kernel(const char* name, struct PsiMatrix matrix, const size_t* targets,
                                 size_t target_count)
 {
-	struct PsiKernel kernel;
-	kernel.matrix = matrix;
-	kernel.targets = dup_targets(targets, target_count);
-	kernel.target_count = target_count;
-	kernel.name = dup_string(name);
-	kernel.gate_type = detect_gate_type(name, matrix);
+    struct PsiKernel kernel;
+    kernel.matrix = matrix;
+    kernel.targets = dup_targets(targets, target_count);
+    kernel.target_count = target_count;
+    kernel.name = dup_string(name);
+    kernel.gate_type = detect_gate_type(name, matrix);
 
-	return kernel;
+    return kernel;
 }
 
 struct PsiKernel psi_clone_kernel(struct PsiKernel kernel)
 {
-	struct PsiKernel copy;
-	copy.matrix = psi_clone_matrix(kernel.matrix);
-	copy.targets = dup_targets(kernel.targets, kernel.target_count);
-	copy.target_count = kernel.target_count;
-	copy.name = dup_string(kernel.name);
-	copy.gate_type = kernel.gate_type;
+    struct PsiKernel copy;
+    copy.matrix = psi_clone_matrix(kernel.matrix);
+    copy.targets = dup_targets(kernel.targets, kernel.target_count);
+    copy.target_count = kernel.target_count;
+    copy.name = dup_string(kernel.name);
+    copy.gate_type = kernel.gate_type;
 
-	return copy;
+    return copy;
 }
 
 void psi_free_kernel(struct PsiKernel* kernel)
 {
-	psi_free_matrix(&kernel->matrix);
-	free(kernel->targets);
-	free(kernel->name);
-	kernel->targets = NULL;
-	kernel->name = NULL;
-	kernel->target_count = 0;
+    psi_free_matrix(&kernel->matrix);
+    free(kernel->targets);
+    free(kernel->name);
+    kernel->targets = NULL;
+    kernel->name = NULL;
+    kernel->target_count = 0;
 }
 
 static bool targets_equal(struct PsiKernel a, struct PsiKernel b)
 {
-	if (a.target_count != b.target_count)
-		return false;
+    if (a.target_count != b.target_count)
+        return false;
 
-	for (size_t i = 0; i < a.target_count; i++)
-		if (a.targets[i] != b.targets[i])
-			return false;
+    for (size_t i = 0; i < a.target_count; i++)
+        if (a.targets[i] != b.targets[i])
+            return false;
 
-	return true;
+    return true;
 }
 
 bool psi_kernels_share_qubits(struct PsiKernel a, struct PsiKernel b)
 {
-	for (size_t i = 0; i < a.target_count; i++)
-		for (size_t j = 0; j < b.target_count; j++)
-			if (a.targets[i] == b.targets[j])
-				return true;
+    for (size_t i = 0; i < a.target_count; i++)
+        for (size_t j = 0; j < b.target_count; j++)
+            if (a.targets[i] == b.targets[j])
+                return true;
 
-	return false;
+    return false;
 }
 
 bool psi_kernels_commute(struct PsiKernel a, struct PsiKernel b)
 {
-	if (!psi_kernels_share_qubits(a, b))
-		return true;
+    if (!psi_kernels_share_qubits(a, b))
+        return true;
 
-	if (a.gate_type == PSI_GATE_TYPE_DIAGONAL && b.gate_type == PSI_GATE_TYPE_DIAGONAL &&
-	    targets_equal(a, b))
-		return true;
+    if (a.gate_type == PSI_GATE_TYPE_DIAGONAL && b.gate_type == PSI_GATE_TYPE_DIAGONAL &&
+        targets_equal(a, b))
+        return true;
 
-	return false;
+    return false;
 }
 
 bool psi_kernels_can_fuse(struct PsiKernel a, struct PsiKernel b)
 {
-	if (a.target_count != 1 || b.target_count != 1)
-		return false;
+    if (a.target_count != 1 || b.target_count != 1)
+        return false;
 
-	return a.targets[0] == b.targets[0];
+    return a.targets[0] == b.targets[0];
 }
 
 bool psi_fuse_kernels(struct PsiKernel a, struct PsiKernel b, struct PsiKernel* out)
 {
-	if (!psi_kernels_can_fuse(a, b))
-		return false;
+    if (!psi_kernels_can_fuse(a, b))
+        return false;
 
-	enum PsiGateType new_type =
-			a.gate_type == PSI_GATE_TYPE_DIAGONAL && b.gate_type == PSI_GATE_TYPE_DIAGONAL
-			? PSI_GATE_TYPE_DIAGONAL
-			: PSI_GATE_TYPE_NON_DIAGONAL;
+    enum PsiGateType new_type =
+            a.gate_type == PSI_GATE_TYPE_DIAGONAL && b.gate_type == PSI_GATE_TYPE_DIAGONAL
+            ? PSI_GATE_TYPE_DIAGONAL
+            : PSI_GATE_TYPE_NON_DIAGONAL;
 
-	size_t name_len = strlen(a.name) + strlen(b.name) + 2;
-	char* fused_name = malloc(name_len);
-	assert(fused_name != NULL);
-	snprintf(fused_name, name_len, "%s+%s", a.name, b.name);
+    size_t name_len = strlen(a.name) + strlen(b.name) + 2;
+    char* fused_name = malloc(name_len);
+    assert(fused_name != NULL);
+    snprintf(fused_name, name_len, "%s+%s", a.name, b.name);
 
-	out->matrix = psi_dot_matrix(b.matrix, a.matrix);
-	out->targets = dup_targets(a.targets, a.target_count);
-	out->target_count = a.target_count;
-	out->name = fused_name;
-	out->gate_type = new_type;
+    out->matrix = psi_dot_matrix(b.matrix, a.matrix);
+    out->targets = dup_targets(a.targets, a.target_count);
+    out->target_count = a.target_count;
+    out->name = fused_name;
+    out->gate_type = new_type;
 
-	return true;
+    return true;
 }
 
 static struct PsiComplex* apply_kernel(const struct PsiComplex* state, struct PsiKernel kernel,
                                        size_t num_qubits)
 {
-	size_t dim = (size_t)1 << num_qubits;
-	size_t g = kernel.target_count;
-	size_t gate_dim = (size_t)1 << g;
+    size_t dim = (size_t)1 << num_qubits;
+    size_t g = kernel.target_count;
+    size_t gate_dim = (size_t)1 << g;
 
-	size_t* target_bits = malloc(g * sizeof(size_t));
-	assert(target_bits != NULL || g == 0);
-	for (size_t k = 0; k < g; k++)
-		target_bits[k] = num_qubits - 1 - kernel.targets[k];
+    size_t* target_bits = malloc(g * sizeof(size_t));
+    assert(target_bits != NULL || g == 0);
+    for (size_t k = 0; k < g; k++)
+        target_bits[k] = num_qubits - 1 - kernel.targets[k];
 
-	size_t non_target_mask = dim - 1;
-	for (size_t k = 0; k < g; k++)
-		non_target_mask &= ~((size_t)1 << target_bits[k]);
+    size_t non_target_mask = dim - 1;
+    for (size_t k = 0; k < g; k++)
+        non_target_mask &= ~((size_t)1 << target_bits[k]);
 
-	struct PsiComplex* new_state = malloc(dim * sizeof(struct PsiComplex));
-	assert(new_state != NULL);
+    struct PsiComplex* new_state = malloc(dim * sizeof(struct PsiComplex));
+    assert(new_state != NULL);
 
-	for (size_t i = 0; i < dim; i++)
-	{
-		size_t target_idx = 0;
-		for (size_t k = 0; k < g; k++)
-			if ((i >> target_bits[k]) & 1)
-				target_idx |= (size_t)1 << (g - 1 - k);
+    for (size_t i = 0; i < dim; i++)
+    {
+        size_t target_idx = 0;
+        for (size_t k = 0; k < g; k++)
+            if ((i >> target_bits[k]) & 1)
+                target_idx |= (size_t)1 << (g - 1 - k);
 
-		struct PsiComplex sum = psi_new_complex(0.0, 0.0);
-		for (size_t j = 0; j < gate_dim; j++)
-		{
-			struct PsiComplex gate_elem = kernel.matrix.data[target_idx * gate_dim + j];
-			if (fabs(gate_elem.real) < 1e-15 && fabs(gate_elem.imaginary) < 1e-15)
-				continue;
+        struct PsiComplex sum = psi_new_complex(0.0, 0.0);
+        for (size_t j = 0; j < gate_dim; j++)
+        {
+            struct PsiComplex gate_elem = kernel.matrix.data[target_idx * gate_dim + j];
+            if (fabs(gate_elem.real) < 1e-15 && fabs(gate_elem.imaginary) < 1e-15)
+                continue;
 
-			size_t source_idx = i & non_target_mask;
-			for (size_t k = 0; k < g; k++)
-				if ((j >> (g - 1 - k)) & 1)
-					source_idx |= (size_t)1 << target_bits[k];
+            size_t source_idx = i & non_target_mask;
+            for (size_t k = 0; k < g; k++)
+                if ((j >> (g - 1 - k)) & 1)
+                    source_idx |= (size_t)1 << target_bits[k];
 
-			sum = psi_add_complex(sum, psi_mul_complex(gate_elem, state[source_idx]));
-		}
+            sum = psi_add_complex(sum, psi_mul_complex(gate_elem, state[source_idx]));
+        }
 
-		new_state[i] = sum;
-	}
+        new_state[i] = sum;
+    }
 
-	free(target_bits);
-	return new_state;
+    free(target_bits);
+    return new_state;
 }
 
 struct PsiKernelBatch psi_new_kernel_batch(size_t num_qubits)
 {
-	struct PsiKernelBatch batch;
-	batch.kernels = NULL;
-	batch.count = 0;
-	batch.capacity = 0;
-	batch.num_qubits = num_qubits;
+    struct PsiKernelBatch batch;
+    batch.kernels = NULL;
+    batch.count = 0;
+    batch.capacity = 0;
+    batch.num_qubits = num_qubits;
 
-	return batch;
+    return batch;
 }
 
 void psi_free_kernel_batch(struct PsiKernelBatch* batch)
 {
-	for (size_t i = 0; i < batch->count; i++)
-		psi_free_kernel(&batch->kernels[i]);
+    for (size_t i = 0; i < batch->count; i++)
+        psi_free_kernel(&batch->kernels[i]);
 
-	free(batch->kernels);
-	batch->kernels = NULL;
-	batch->count = 0;
-	batch->capacity = 0;
+    free(batch->kernels);
+    batch->kernels = NULL;
+    batch->count = 0;
+    batch->capacity = 0;
 }
 
 void psi_add_kernel(struct PsiKernelBatch* batch, struct PsiKernel kernel)
 {
-	if (batch->count == batch->capacity)
-	{
-		size_t new_capacity = batch->capacity == 0 ? 8 : batch->capacity * 2;
-		batch->kernels = realloc(batch->kernels, new_capacity * sizeof(struct PsiKernel));
-		assert(batch->kernels != NULL);
-		batch->capacity = new_capacity;
-	}
+    if (batch->count == batch->capacity)
+    {
+        size_t new_capacity = batch->capacity == 0 ? 8 : batch->capacity * 2;
+        batch->kernels = realloc(batch->kernels, new_capacity * sizeof(struct PsiKernel));
+        assert(batch->kernels != NULL);
+        batch->capacity = new_capacity;
+    }
 
-	batch->kernels[batch->count++] = kernel;
+    batch->kernels[batch->count++] = kernel;
 }
 
 void psi_optimize_kernel_batch(struct PsiKernelBatch* batch)
 {
-	if (batch->count < 2)
-		return;
+    if (batch->count < 2)
+        return;
 
-	size_t original = batch->count;
-	struct PsiKernel* out = malloc(original * sizeof(struct PsiKernel));
-	assert(out != NULL);
-	size_t out_count = 0;
+    size_t original = batch->count;
+    struct PsiKernel* out = malloc(original * sizeof(struct PsiKernel));
+    assert(out != NULL);
+    size_t out_count = 0;
 
-	size_t i = 0;
-	while (i < batch->count)
-	{
-		if (i + 1 < batch->count)
-		{
-			struct PsiKernel fused;
-			if (psi_fuse_kernels(batch->kernels[i], batch->kernels[i + 1], &fused))
-			{
-				psi_free_kernel(&batch->kernels[i]);
-				psi_free_kernel(&batch->kernels[i + 1]);
-				out[out_count++] = fused;
-				i += 2;
-				continue;
-			}
-		}
+    size_t i = 0;
+    while (i < batch->count)
+    {
+        if (i + 1 < batch->count)
+        {
+            struct PsiKernel fused;
+            if (psi_fuse_kernels(batch->kernels[i], batch->kernels[i + 1], &fused))
+            {
+                psi_free_kernel(&batch->kernels[i]);
+                psi_free_kernel(&batch->kernels[i + 1]);
+                out[out_count++] = fused;
+                i += 2;
+                continue;
+            }
+        }
 
-		out[out_count++] = batch->kernels[i];
-		i += 1;
-	}
+        out[out_count++] = batch->kernels[i];
+        i += 1;
+    }
 
-	free(batch->kernels);
-	batch->kernels = out;
-	batch->count = out_count;
-	batch->capacity = original;
+    free(batch->kernels);
+    batch->kernels = out;
+    batch->count = out_count;
+    batch->capacity = original;
 }
 
 void psi_execute_kernel_batch(struct PsiKernelBatch batch, struct PsiVector* state)
 {
-	size_t dim = (size_t)1 << batch.num_qubits;
-	assert(state->size == dim);
+    size_t dim = (size_t)1 << batch.num_qubits;
+    assert(state->size == dim);
 
-	for (size_t i = 0; i < batch.count; i++)
-	{
-		struct PsiComplex* next = apply_kernel(state->data, batch.kernels[i], batch.num_qubits);
-		free(state->data);
-		state->data = next;
-	}
+    for (size_t i = 0; i < batch.count; i++)
+    {
+        struct PsiComplex* next = apply_kernel(state->data, batch.kernels[i], batch.num_qubits);
+        free(state->data);
+        state->data = next;
+    }
 }
 
 void psi_apply_kernel(struct PsiVector* state, struct PsiKernel kernel, size_t num_qubits)
 {
-	struct PsiComplex* next = apply_kernel(state->data, kernel, num_qubits);
-	free(state->data);
-	state->data = next;
+    struct PsiComplex* next = apply_kernel(state->data, kernel, num_qubits);
+    free(state->data);
+    state->data = next;
 }
 
 static void push_kernel(struct PsiKernel** kernels, size_t* count, size_t* capacity,
                         struct PsiKernel kernel)
 {
-	if (*count == *capacity)
-	{
-		size_t new_capacity = *capacity == 0 ? 8 : *capacity * 2;
-		*kernels = realloc(*kernels, new_capacity * sizeof(struct PsiKernel));
-		assert(*kernels != NULL);
-		*capacity = new_capacity;
-	}
+    if (*count == *capacity)
+    {
+        size_t new_capacity = *capacity == 0 ? 8 : *capacity * 2;
+        *kernels = realloc(*kernels, new_capacity * sizeof(struct PsiKernel));
+        assert(*kernels != NULL);
+        *capacity = new_capacity;
+    }
 
-	(*kernels)[(*count)++] = kernel;
+    (*kernels)[(*count)++] = kernel;
 }
 
 static bool layer_can_add(struct PsiExecutionLayer layer, struct PsiKernel kernel)
 {
-	for (size_t i = 0; i < layer.count; i++)
-		if (psi_kernels_share_qubits(layer.kernels[i], kernel))
-			return false;
+    for (size_t i = 0; i < layer.count; i++)
+        if (psi_kernels_share_qubits(layer.kernels[i], kernel))
+            return false;
 
-	return true;
+    return true;
 }
 
 static void free_layer(struct PsiExecutionLayer* layer)
 {
-	for (size_t i = 0; i < layer->count; i++)
-		psi_free_kernel(&layer->kernels[i]);
+    for (size_t i = 0; i < layer->count; i++)
+        psi_free_kernel(&layer->kernels[i]);
 
-	free(layer->kernels);
-	layer->kernels = NULL;
-	layer->count = 0;
-	layer->capacity = 0;
+    free(layer->kernels);
+    layer->kernels = NULL;
+    layer->count = 0;
+    layer->capacity = 0;
 }
 
 struct PsiStructureAwareBatch psi_new_structure_aware_batch(size_t num_qubits)
 {
-	struct PsiStructureAwareBatch batch;
-	batch.kernels = NULL;
-	batch.count = 0;
-	batch.capacity = 0;
-	batch.layers = NULL;
-	batch.layer_count = 0;
-	batch.layer_capacity = 0;
-	batch.num_qubits = num_qubits;
-	batch.optimised = false;
+    struct PsiStructureAwareBatch batch;
+    batch.kernels = NULL;
+    batch.count = 0;
+    batch.capacity = 0;
+    batch.layers = NULL;
+    batch.layer_count = 0;
+    batch.layer_capacity = 0;
+    batch.num_qubits = num_qubits;
+    batch.optimised = false;
 
-	return batch;
+    return batch;
 }
 
 static void clear_layers(struct PsiStructureAwareBatch* batch)
 {
-	for (size_t i = 0; i < batch->layer_count; i++)
-		free_layer(&batch->layers[i]);
+    for (size_t i = 0; i < batch->layer_count; i++)
+        free_layer(&batch->layers[i]);
 
-	free(batch->layers);
-	batch->layers = NULL;
-	batch->layer_count = 0;
-	batch->layer_capacity = 0;
+    free(batch->layers);
+    batch->layers = NULL;
+    batch->layer_count = 0;
+    batch->layer_capacity = 0;
 }
 
 void psi_free_structure_aware_batch(struct PsiStructureAwareBatch* batch)
 {
-	for (size_t i = 0; i < batch->count; i++)
-		psi_free_kernel(&batch->kernels[i]);
+    for (size_t i = 0; i < batch->count; i++)
+        psi_free_kernel(&batch->kernels[i]);
 
-	free(batch->kernels);
-	batch->kernels = NULL;
-	batch->count = 0;
-	batch->capacity = 0;
-	clear_layers(batch);
+    free(batch->kernels);
+    batch->kernels = NULL;
+    batch->count = 0;
+    batch->capacity = 0;
+    clear_layers(batch);
 }
 
 void psi_add_structure_aware_kernel(struct PsiStructureAwareBatch* batch, struct PsiKernel kernel)
 {
-	push_kernel(&batch->kernels, &batch->count, &batch->capacity, kernel);
-	batch->optimised = false;
+    push_kernel(&batch->kernels, &batch->count, &batch->capacity, kernel);
+    batch->optimised = false;
 }
 
 static struct PsiKernel remove_kernel_at(struct PsiStructureAwareBatch* batch, size_t index)
 {
-	struct PsiKernel removed = batch->kernels[index];
-	for (size_t i = index; i + 1 < batch->count; i++)
-		batch->kernels[i] = batch->kernels[i + 1];
+    struct PsiKernel removed = batch->kernels[index];
+    for (size_t i = index; i + 1 < batch->count; i++)
+        batch->kernels[i] = batch->kernels[i + 1];
 
-	batch->count--;
-	return removed;
+    batch->count--;
+    return removed;
 }
 
 static void insert_kernel_at(struct PsiStructureAwareBatch* batch, size_t index,
                              struct PsiKernel kernel)
 {
-	if (batch->count == batch->capacity)
-	{
-		size_t new_capacity = batch->capacity == 0 ? 8 : batch->capacity * 2;
-		batch->kernels = realloc(batch->kernels, new_capacity * sizeof(struct PsiKernel));
-		assert(batch->kernels != NULL);
-		batch->capacity = new_capacity;
-	}
+    if (batch->count == batch->capacity)
+    {
+        size_t new_capacity = batch->capacity == 0 ? 8 : batch->capacity * 2;
+        batch->kernels = realloc(batch->kernels, new_capacity * sizeof(struct PsiKernel));
+        assert(batch->kernels != NULL);
+        batch->capacity = new_capacity;
+    }
 
-	for (size_t i = batch->count; i > index; i--)
-		batch->kernels[i] = batch->kernels[i - 1];
+    for (size_t i = batch->count; i > index; i--)
+        batch->kernels[i] = batch->kernels[i - 1];
 
-	batch->kernels[index] = kernel;
-	batch->count++;
+    batch->kernels[index] = kernel;
+    batch->count++;
 }
 
 static void reorder_commuting_gates(struct PsiStructureAwareBatch* batch)
 {
-	bool changed = true;
-	size_t iterations = 0;
-	const size_t MAX_ITERATIONS = 100;
+    bool changed = true;
+    size_t iterations = 0;
+    const size_t MAX_ITERATIONS = 100;
 
-	while (changed && iterations < MAX_ITERATIONS)
-	{
-		changed = false;
-		iterations++;
+    while (changed && iterations < MAX_ITERATIONS)
+    {
+        changed = false;
+        iterations++;
 
-		for (size_t i = 0; i + 1 < batch->count; i++)
-		{
-			struct PsiKernel current = batch->kernels[i];
-			struct PsiKernel next = batch->kernels[i + 1];
+        for (size_t i = 0; i + 1 < batch->count; i++)
+        {
+            struct PsiKernel current = batch->kernels[i];
+            struct PsiKernel next = batch->kernels[i + 1];
 
-			if (current.target_count != 1 || next.target_count != 1 ||
-			    current.targets[0] == next.targets[0] || !psi_kernels_commute(current, next))
-				continue;
+            if (current.target_count != 1 || next.target_count != 1 ||
+                current.targets[0] == next.targets[0] || !psi_kernels_commute(current, next))
+                continue;
 
-			for (size_t j = i + 2; j < batch->count; j++)
-			{
-				struct PsiKernel candidate = batch->kernels[j];
-				if (candidate.target_count != 1 || candidate.targets[0] != current.targets[0])
-					continue;
+            for (size_t j = i + 2; j < batch->count; j++)
+            {
+                struct PsiKernel candidate = batch->kernels[j];
+                if (candidate.target_count != 1 || candidate.targets[0] != current.targets[0])
+                    continue;
 
-				bool can_move = true;
-				for (size_t k = i + 1; k < j; k++)
-				{
-					struct PsiKernel between = batch->kernels[k];
-					if (psi_kernels_share_qubits(between, current) &&
-					    !psi_kernels_commute(current, between))
-					{
-						can_move = false;
-						break;
-					}
-				}
+                bool can_move = true;
+                for (size_t k = i + 1; k < j; k++)
+                {
+                    struct PsiKernel between = batch->kernels[k];
+                    if (psi_kernels_share_qubits(between, current) &&
+                        !psi_kernels_commute(current, between))
+                    {
+                        can_move = false;
+                        break;
+                    }
+                }
 
-				if (can_move && psi_kernels_can_fuse(current, candidate))
-				{
-					struct PsiKernel moved = remove_kernel_at(batch, j);
-					insert_kernel_at(batch, i + 1, moved);
-					changed = true;
-					break;
-				}
-			}
-		}
-	}
+                if (can_move && psi_kernels_can_fuse(current, candidate))
+                {
+                    struct PsiKernel moved = remove_kernel_at(batch, j);
+                    insert_kernel_at(batch, i + 1, moved);
+                    changed = true;
+                    break;
+                }
+            }
+        }
+    }
 }
 
 static void multi_pass_fusion(struct PsiStructureAwareBatch* batch)
 {
-	bool changed = true;
-	size_t iterations = 0;
-	const size_t MAX_ITERATIONS = 50;
+    bool changed = true;
+    size_t iterations = 0;
+    const size_t MAX_ITERATIONS = 50;
 
-	while (changed && iterations < MAX_ITERATIONS)
-	{
-		changed = false;
-		iterations++;
+    while (changed && iterations < MAX_ITERATIONS)
+    {
+        changed = false;
+        iterations++;
 
-		struct PsiKernel* new_kernels = NULL;
-		size_t new_count = 0;
-		size_t new_capacity = 0;
+        struct PsiKernel* new_kernels = NULL;
+        size_t new_count = 0;
+        size_t new_capacity = 0;
 
-		size_t i = 0;
-		while (i < batch->count)
-		{
-			if (i + 1 < batch->count)
-			{
-				struct PsiKernel fused;
-				if (psi_fuse_kernels(batch->kernels[i], batch->kernels[i + 1], &fused))
-				{
-					psi_free_kernel(&batch->kernels[i]);
-					psi_free_kernel(&batch->kernels[i + 1]);
-					push_kernel(&new_kernels, &new_count, &new_capacity, fused);
-					i += 2;
-					changed = true;
-					continue;
-				}
-			}
+        size_t i = 0;
+        while (i < batch->count)
+        {
+            if (i + 1 < batch->count)
+            {
+                struct PsiKernel fused;
+                if (psi_fuse_kernels(batch->kernels[i], batch->kernels[i + 1], &fused))
+                {
+                    psi_free_kernel(&batch->kernels[i]);
+                    psi_free_kernel(&batch->kernels[i + 1]);
+                    push_kernel(&new_kernels, &new_count, &new_capacity, fused);
+                    i += 2;
+                    changed = true;
+                    continue;
+                }
+            }
 
-			push_kernel(&new_kernels, &new_count, &new_capacity, batch->kernels[i]);
-			i++;
-		}
+            push_kernel(&new_kernels, &new_count, &new_capacity, batch->kernels[i]);
+            i++;
+        }
 
-		free(batch->kernels);
-		batch->kernels = new_kernels;
-		batch->count = new_count;
-		batch->capacity = new_capacity;
-	}
+        free(batch->kernels);
+        batch->kernels = new_kernels;
+        batch->count = new_count;
+        batch->capacity = new_capacity;
+    }
 }
 
 static void build_execution_layers(struct PsiStructureAwareBatch* batch)
 {
-	clear_layers(batch);
+    clear_layers(batch);
 
-	for (size_t i = 0; i < batch->count; i++)
-	{
-		struct PsiKernel kernel = batch->kernels[i];
-		bool placed = false;
+    for (size_t i = 0; i < batch->count; i++)
+    {
+        struct PsiKernel kernel = batch->kernels[i];
+        bool placed = false;
 
-		for (size_t l = 0; l < batch->layer_count; l++)
-			if (layer_can_add(batch->layers[l], kernel))
-			{
-				struct PsiExecutionLayer* layer = &batch->layers[l];
-				push_kernel(&layer->kernels, &layer->count, &layer->capacity,
-				            psi_clone_kernel(kernel));
-				placed = true;
-				break;
-			}
+        for (size_t l = 0; l < batch->layer_count; l++)
+            if (layer_can_add(batch->layers[l], kernel))
+            {
+                struct PsiExecutionLayer* layer = &batch->layers[l];
+                push_kernel(&layer->kernels, &layer->count, &layer->capacity,
+                            psi_clone_kernel(kernel));
+                placed = true;
+                break;
+            }
 
-		if (placed)
-			continue;
+        if (placed)
+            continue;
 
-		if (batch->layer_count == batch->layer_capacity)
-		{
-			size_t new_capacity = batch->layer_capacity == 0 ? 4 : batch->layer_capacity * 2;
-			batch->layers = realloc(batch->layers, new_capacity * sizeof(struct PsiExecutionLayer));
-			assert(batch->layers != NULL);
-			batch->layer_capacity = new_capacity;
-		}
+        if (batch->layer_count == batch->layer_capacity)
+        {
+            size_t new_capacity = batch->layer_capacity == 0 ? 4 : batch->layer_capacity * 2;
+            batch->layers = realloc(batch->layers, new_capacity * sizeof(struct PsiExecutionLayer));
+            assert(batch->layers != NULL);
+            batch->layer_capacity = new_capacity;
+        }
 
-		struct PsiExecutionLayer layer;
-		layer.kernels = NULL;
-		layer.count = 0;
-		layer.capacity = 0;
-		push_kernel(&layer.kernels, &layer.count, &layer.capacity, psi_clone_kernel(kernel));
-		batch->layers[batch->layer_count++] = layer;
-	}
+        struct PsiExecutionLayer layer;
+        layer.kernels = NULL;
+        layer.count = 0;
+        layer.capacity = 0;
+        push_kernel(&layer.kernels, &layer.count, &layer.capacity, psi_clone_kernel(kernel));
+        batch->layers[batch->layer_count++] = layer;
+    }
 }
 
 void psi_optimize_structure_aware_batch(struct PsiStructureAwareBatch* batch)
 {
-	if (batch->optimised || batch->count < 2)
-		return;
+    if (batch->optimised || batch->count < 2)
+        return;
 
-	reorder_commuting_gates(batch);
-	multi_pass_fusion(batch);
-	build_execution_layers(batch);
-	batch->optimised = true;
+    reorder_commuting_gates(batch);
+    multi_pass_fusion(batch);
+    build_execution_layers(batch);
+    batch->optimised = true;
 }
 
 void psi_execute_structure_aware_batch(struct PsiStructureAwareBatch batch, struct PsiVector* state)
 {
-	size_t dim = (size_t)1 << batch.num_qubits;
-	assert(state->size == dim);
+    size_t dim = (size_t)1 << batch.num_qubits;
+    assert(state->size == dim);
 
-	for (size_t i = 0; i < batch.count; i++)
-	{
-		struct PsiComplex* next = apply_kernel(state->data, batch.kernels[i], batch.num_qubits);
-		free(state->data);
-		state->data = next;
-	}
+    for (size_t i = 0; i < batch.count; i++)
+    {
+        struct PsiComplex* next = apply_kernel(state->data, batch.kernels[i], batch.num_qubits);
+        free(state->data);
+        state->data = next;
+    }
 }
 
 void psi_execute_structure_aware_batch_layered(struct PsiStructureAwareBatch batch,
                                                struct PsiVector* state)
 {
-	size_t dim = (size_t)1 << batch.num_qubits;
-	assert(state->size == dim);
+    size_t dim = (size_t)1 << batch.num_qubits;
+    assert(state->size == dim);
 
-	for (size_t l = 0; l < batch.layer_count; l++)
-		for (size_t k = 0; k < batch.layers[l].count; k++)
-		{
-			struct PsiComplex* next =
-					apply_kernel(state->data, batch.layers[l].kernels[k], batch.num_qubits);
-			free(state->data);
-			state->data = next;
-		}
+    for (size_t l = 0; l < batch.layer_count; l++)
+        for (size_t k = 0; k < batch.layers[l].count; k++)
+        {
+            struct PsiComplex* next =
+                    apply_kernel(state->data, batch.layers[l].kernels[k], batch.num_qubits);
+            free(state->data);
+            state->data = next;
+        }
 }
 
 struct PsiKernelStats psi_structure_aware_batch_stats(struct PsiStructureAwareBatch batch)
 {
-	struct PsiKernelStats stats;
-	stats.total_kernels = batch.count;
-	stats.single_qubit = 0;
-	stats.two_qubit = 0;
-	stats.multi_qubit = 0;
-	stats.diagonal = 0;
-	stats.execution_layers = batch.layer_count;
+    struct PsiKernelStats stats;
+    stats.total_kernels = batch.count;
+    stats.single_qubit = 0;
+    stats.two_qubit = 0;
+    stats.multi_qubit = 0;
+    stats.diagonal = 0;
+    stats.execution_layers = batch.layer_count;
 
-	for (size_t i = 0; i < batch.count; i++)
-	{
-		struct PsiKernel kernel = batch.kernels[i];
+    for (size_t i = 0; i < batch.count; i++)
+    {
+        struct PsiKernel kernel = batch.kernels[i];
 
-		if (kernel.target_count == 1)
-			stats.single_qubit++;
-		else if (kernel.target_count == 2)
-			stats.two_qubit++;
-		else if (kernel.target_count > 2)
-			stats.multi_qubit++;
+        if (kernel.target_count == 1)
+            stats.single_qubit++;
+        else if (kernel.target_count == 2)
+            stats.two_qubit++;
+        else if (kernel.target_count > 2)
+            stats.multi_qubit++;
 
-		if (kernel.gate_type == PSI_GATE_TYPE_DIAGONAL)
-			stats.diagonal++;
-	}
+        if (kernel.gate_type == PSI_GATE_TYPE_DIAGONAL)
+            stats.diagonal++;
+    }
 
-	return stats;
+    return stats;
 }