backwards compatiblye with g++4.8.5

Author: richardbrooks2000

CMakeLists.txt

@@ -15,7 +15,7 @@ set( CMAKE_INCLUDE_CURRENT_DIR ON )
 include_directories( program/src/ )
 
 # gcc compiler/linker flags
-add_compile_options( -ggdb -Wall -Wextra -Werror -mavx2 -std=c++17 -m64 )
+add_compile_options( -ggdb -Wall -Wextra -Werror -mavx2 -std=c++11 -m64 )
 set( CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -pthread")
 
 #

pc/jtree.cpp

@@ -18,7 +18,7 @@ void jtree::parse( const char *cptr, size_t sz )
 
   typedef enum { e_start, e_string, e_number, e_keyword } state_t;
   state_t st = e_start;
-  const char *txt, *end = &cptr[sz];
+  const char *txt=nullptr, *end = &cptr[sz];
   for(;;) {
     switch(st) {
       case e_start: {

pc/misc.cpp

@@ -239,7 +239,7 @@ int enc_base64( const uint8_t *inp, int len, uint8_t *out )
 int dec_base64( const uint8_t *inp, int len, uint8_t *out )
 {
   int i = 0, j = 0, decLen = 0;
-  uint8_t a3[3];
+  uint8_t a3[3] = { 0,0,0 };
   uint8_t a4[4];
 
   while ( len-- ) {

pc/net_socket.cpp

@@ -34,7 +34,7 @@ using namespace pc;
 net_buf_alloc::net_buf_alloc()
 : ptr_( nullptr )
 {
-  static_assert( sizeof( net_buf ) == 1280);
+  static_assert( sizeof( net_buf ) == 1280, "unexpected net_buf size");
 }
 
 net_buf_alloc::~net_buf_alloc()