fixing some gcc warnings

.gitignore

@@ -16,3 +16,6 @@ net
 # and files that doxygen produce are not kept under version control
 docs/latex
 docs/html
+
+# Object files
+*.o

lstm.c

@@ -1611,8 +1611,9 @@ void lstm_train(lstm_model_t** model_layers, lstm_model_parameters_t *params,
   set_t* char_index_mapping, unsigned int training_points,
   int* X_train, int* Y_train, unsigned int layers)
 {
-  int status = 0, p;
-  unsigned int i = 0, b = 0, q = 0, e1 = 0, e2 = 0, e3, record_iteration = 0, tmp_count, trailing;
+  int status = 0;
+  unsigned int p, i = 0, b = 0, q = 0, e1 = 0, e2 = 0,
+    e3, record_iteration = 0, tmp_count, trailing;
   unsigned long n = 0, epoch = 0;
   double loss = -1, loss_tmp = 0.0, record_keeper = 0.0;
   double initial_learning_rate = params->learning_rate;
@@ -1769,7 +1770,7 @@ void lstm_train(lstm_model_t** model_layers, lstm_model_parameters_t *params,
 
       if ( p > 0 ) {
         --p;
-        while ( p >= 0 ) {
+        while ( p >= 0 && p <= layers - 1 ) {
           lstm_forward_propagate(model_layers[p],
             cache_layers[p+1][e2]->probs,
             cache_layers[p][e1],

lstm.h

@@ -100,17 +100,17 @@ typedef struct lstm_model_parameters_t {
   char *store_char_indx_map_name;
 
   // General parameters
-  int mini_batch_size;
+  unsigned int mini_batch_size;
   double gradient_clip_limit;
   unsigned long iterations;
 } lstm_model_parameters_t;
 
 typedef struct lstm_model_t
 {
-  int X; /**< Number of input nodes */
-  int N; /**< Number of neurons */
-  int Y; /**< Number of output nodes */
-  int S; /**< lstm_model_t.X + lstm_model_t.N */
+  unsigned int X; /**< Number of input nodes */
+  unsigned int N; /**< Number of neurons */
+  unsigned int Y; /**< Number of output nodes */
+  unsigned int S; /**< lstm_model_t.X + lstm_model_t.N */
 
   // Parameters
   lstm_model_parameters_t * params;

makefile

@@ -2,11 +2,11 @@ CC := gcc
 FLAGS := O3 Ofast msse3
 LIBS := m
 GCC_HINTS := all \
-			unused \
-			uninitialized \
-			no-unused-variable \
-			extra \
-			unused-parameter
+  unused \
+  uninitialized \
+  no-unused-variable \
+  extra \
+  unused-parameter
 
 .PHONY : net clean