Cleanup: Blenlib, Clang-Tidy else-after-return fixes (incomplete)

This addresses warnings from Clang-Tidy's `readability-else-after-return`
rule in the `source/blender/blenlib` module. Not all warnings are
addressed in this commit.

No functional changes.

4 files changed, 19 insertions, 36 deletions

diff --git a/source/blender/windowmanager/gizmo/intern/wm_gizmo.c b/source/blender/windowmanager/gizmo/intern/wm_gizmo.c
index 90d9ba45637..87cb4d5f584 100644
--- a/source/blender/windowmanager/gizmo/intern/wm_gizmo.c
+++ b/source/blender/windowmanager/gizmo/intern/wm_gizmo.c
@@ -452,9 +452,7 @@ bool wm_gizmo_select_and_highlight(bContext *C, wmGizmoMap *gzmap, wmGizmo *gz)
     wm_gizmomap_highlight_set(gzmap, C, gz, gz->highlight_part);
     return true;
   }
-  else {
-    return false;
-  }
+  return false;
 }
 
 /**
diff --git a/source/blender/windowmanager/gizmo/intern/wm_gizmo_group.c b/source/blender/windowmanager/gizmo/intern/wm_gizmo_group.c
index 67f30f0d7ee..b64d544962d 100644
--- a/source/blender/windowmanager/gizmo/intern/wm_gizmo_group.c
+++ b/source/blender/windowmanager/gizmo/intern/wm_gizmo_group.c
@@ -166,12 +166,10 @@ int WM_gizmo_cmp_temp_fl(const void *gz_a_ptr, const void *gz_b_ptr)
   if (gz_a->temp.f < gz_b->temp.f) {
     return -1;
   }
-  else if (gz_a->temp.f > gz_b->temp.f) {
+  if (gz_a->temp.f > gz_b->temp.f) {
     return 1;
   }
-  else {
-    return 0;
-  }
+  return 0;
 }
 
 int WM_gizmo_cmp_temp_fl_reverse(const void *gz_a_ptr, const void *gz_b_ptr)
@@ -181,12 +179,10 @@ int WM_gizmo_cmp_temp_fl_reverse(const void *gz_a_ptr, const void *gz_b_ptr)
   if (gz_a->temp.f < gz_b->temp.f) {
     return 1;
   }
-  else if (gz_a->temp.f > gz_b->temp.f) {
+  if (gz_a->temp.f > gz_b->temp.f) {
     return -1;
   }
-  else {
-    return 0;
-  }
+  return 0;
 }
 
 static bool wm_gizmo_keymap_uses_event_modifier(wmWindowManager *wm,
@@ -396,10 +392,9 @@ static int gizmo_select_invoke(bContext *C, wmOperator *op, const wmEvent *UNUSE
 
     return OPERATOR_FINISHED;
   }
-  else {
-    BLI_assert(0);
-    return (OPERATOR_CANCELLED | OPERATOR_PASS_THROUGH);
-  }
+
+  BLI_assert(0);
+  return (OPERATOR_CANCELLED | OPERATOR_PASS_THROUGH);
 }
 
 void GIZMOGROUP_OT_gizmo_select(wmOperatorType *ot)
@@ -476,9 +471,7 @@ static bool gizmo_tweak_start_and_finish(
     }
     return true;
   }
-  else {
-    return false;
-  }
+  return false;
 }
 
 static void gizmo_tweak_finish(bContext *C, wmOperator *op, const bool cancel, bool clear_modal)
diff --git a/source/blender/windowmanager/gizmo/intern/wm_gizmo_map.c b/source/blender/windowmanager/gizmo/intern/wm_gizmo_map.c
index 2038a82c9fd..cecd324ff28 100644
--- a/source/blender/windowmanager/gizmo/intern/wm_gizmo_map.c
+++ b/source/blender/windowmanager/gizmo/intern/wm_gizmo_map.c
@@ -263,11 +263,10 @@ bool WM_gizmomap_minmax(const wmGizmoMap *gzmap,
     }
     return i != 0;
   }
-  else {
-    bool ok = false;
-    BLI_assert(!"TODO");
-    return ok;
-  }
+
+  bool ok = false;
+  BLI_assert(!"TODO");
+  return ok;
 }
 
 /**
@@ -647,10 +646,9 @@ static int gizmo_find_intersected_3d_intern(wmGizmo **visible_gizmos,
     }
     return hit_found;
   }
-  else {
-    const uint *hit_near = GPU_select_buffer_near(buffer, hits);
-    return hit_near ? hit_near[3] : -1;
-  }
+
+  const uint *hit_near = GPU_select_buffer_near(buffer, hits);
+  return hit_near ? hit_near[3] : -1;
 }
 
 /**
diff --git a/source/blender/windowmanager/gizmo/intern/wm_gizmo_target_props.c b/source/blender/windowmanager/gizmo/intern/wm_gizmo_target_props.c
index 2dc03d1419c..b056ed40943 100644
--- a/source/blender/windowmanager/gizmo/intern/wm_gizmo_target_props.c
+++ b/source/blender/windowmanager/gizmo/intern/wm_gizmo_target_props.c
@@ -70,9 +70,7 @@ wmGizmoProperty *WM_gizmo_target_property_find(wmGizmo *gz, const char *idname)
   if (index != -1) {
     return WM_gizmo_target_property_at_index(gz, index);
   }
-  else {
-    return NULL;
-  }
+  return NULL;
 }
 
 void WM_gizmo_target_property_def_rna_ptr(wmGizmo *gz,
@@ -195,9 +193,7 @@ float WM_gizmo_target_property_float_get(const wmGizmo *gz, wmGizmoProperty *gz_
   if (gz_prop->index == -1) {
     return RNA_property_float_get(&gz_prop->ptr, gz_prop->prop);
   }
-  else {
-    return RNA_property_float_get_index(&gz_prop->ptr, gz_prop->prop, gz_prop->index);
-  }
+  return RNA_property_float_get_index(&gz_prop->ptr, gz_prop->prop, gz_prop->index);
 }
 
 void WM_gizmo_target_property_float_set(bContext *C,
@@ -255,9 +251,7 @@ bool WM_gizmo_target_property_float_range_get(const wmGizmo *gz,
       gz_prop->custom_func.range_get_fn(gz, gz_prop, range);
       return true;
     }
-    else {
-      return false;
-    }
+    return false;
   }
 
   float step, precision;