[A] Add functions to check if table is empty to the API

lib/fort.c

@@ -2699,13 +2699,13 @@ void ft_ln(ft_table_t *table)
     table->cur_row++;
 }
 
-size_t ft_cur_row(ft_table_t *table)
+size_t ft_cur_row(const ft_table_t *table)
 {
     assert(table);
     return table->cur_row;
 }
 
-size_t ft_cur_col(ft_table_t *table)
+size_t ft_cur_col(const ft_table_t *table)
 {
     assert(table);
     return table->cur_col;
@@ -2718,6 +2718,15 @@ void ft_set_cur_cell(ft_table_t *table, size_t row, size_t col)
     table->cur_col = col;
 }
 
+int ft_is_empty(const ft_table_t *table)
+{
+    assert(table);
+    if (table->rows == NULL || (vector_size(table->rows) == 0))
+        return 1;
+    else
+        return 0;
+}
+
 static int ft_row_printf_impl_(ft_table_t *table, size_t row, const struct f_string_view *fmt, va_list *va)
 {
     size_t i = 0;

lib/fort.h

@@ -286,7 +286,7 @@ void ft_ln(ft_table_t *table);
  * @return
  *   Row number of the current cell.
  */
-size_t ft_cur_row(ft_table_t *table);
+size_t ft_cur_row(const ft_table_t *table);
 
 /**
  * Get column number of the current cell.
@@ -296,7 +296,7 @@ size_t ft_cur_row(ft_table_t *table);
  * @return
  *   Column number of the current cell.
  */
-size_t ft_cur_col(ft_table_t *table);
+size_t ft_cur_col(const ft_table_t *table);
 
 /**
  * Set current cell position.
@@ -313,7 +313,16 @@ size_t ft_cur_col(ft_table_t *table);
  */
 void ft_set_cur_cell(ft_table_t *table, size_t row, size_t col);
 
-
+/**
+ * Check if table is empty.
+ *
+ * @param table
+ *   Pointer to  the table.
+ * @return
+ *   1 - table is empty
+ *   0 - some data has been inserted
+ */
+int ft_is_empty(const ft_table_t *table);
 
 #if defined(FT_CLANG_COMPILER) || defined(FT_GCC_COMPILER)
 

lib/fort.hpp

@@ -1012,7 +1012,7 @@ public:
      *   Column number of the current cell.
      */
     size_t
-    cur_col()
+    cur_col() const noexcept
     {
         return ft_cur_col(table_);
     }
@@ -1024,11 +1024,24 @@ public:
      *   Row number of the current cell.
      */
     size_t
-    cur_row()
+    cur_row() const noexcept
     {
         return ft_cur_row(table_);
     }
 
+    /**
+     * Check if table is empty.
+     *
+     * @return
+     *   true - table is empty
+     *   false - some data has been inserted
+     */
+    bool
+    is_empty() const noexcept
+    {
+        return ft_is_empty(table_);
+    }
+
     /**
      * Get current cell.
      *