minor

Author: dance858

CMakeLists.txt

@@ -7,6 +7,23 @@ set(CMAKE_BUILD_TYPE Debug)
 # Debug-friendly flags
 add_compile_options(-g -O0)
 
+# Warning flags
+add_compile_options(
+    -Wall                  # Enable most warnings
+    -Wextra                # Extra warnings
+    -Wpedantic             # Strict ISO C compliance
+    -Wshadow               # Warn about variable shadowing
+    -Wformat=2             # Extra format string checks
+    #-Wconversion           # Warn about implicit conversions
+    #-Wsign-conversion      # Warn about sign conversions
+    -Wcast-qual            # Warn about cast that removes qualifiers
+    -Wcast-align           # Warn about pointer cast alignment issues
+    -Wunused               # Warn about unused variables/functions
+    -Wdouble-promotion     # Warn about float->double promotion
+    -Wnull-dereference     # Warn about null pointer dereference
+    #-Wstrict-prototypes    # Warn about missing prototypes
+)
+
 # Include directories
 include_directories(${PROJECT_SOURCE_DIR}/include)
 include_directories(${PROJECT_SOURCE_DIR}/tests)

src/elementwise_univariate/common.c

@@ -100,4 +100,5 @@ expr *new_elementwise(expr *child)
     node->eval_jacobian = eval_jacobian_elementwise;
     node->wsum_hess_init = wsum_hess_init_elementwise;
     node->eval_wsum_hess = eval_wsum_hess_elementwise;
+    return node;
 }