Experimental Physics and
Industrial Control System

Hello Kay,

I would like to build a Channel Archiver test environment to investigate data migration to Archiver Appliance.

When I built the latest Channel Archiver source code from github [1] within EPICS_BASE/src directory, I encountered the following error:

/usr/bin/g++ -c  -D_POSIX_C_SOURCE=199506L -D_POSIX_THREADS -D_XOPEN_SOURCE=500           -D_X86_64_  -DUNIX  -D_BSD_SOURCE -Dlinux  -D_REENTRANT   -g   -Wall     -D ARCH_VERSION=3 -D ARCH_RELEASE=0 -D ARCH_PATCH=0 -D ARCH_VERSION_TXT=\"3.0.0\" -I../../../../include -I../../../../include/os/Linux -I/usr/local/include -DFUX_XERCES  -m64      -MMD -I. -I../O.Common -I. -I.. -I../../../../include/os/Linux -I../../../../include        ../AVLTreeTest.cpp
In file included from ../AVLTreeTest.cpp:4:0:
../AVLTree.h: In instantiation of ‘bool AVLTree<Item>::find(Item&) [with Item = int]’:
../AVLTreeTest.cpp:37:24:   required from here
../AVLTree.h:80:46: error: ‘sort_compare’ was not declared in this scope, and no declarations were found by argument-dependent lookup at the point of instantiation [-fpermissive]
             comp = sort_compare(item, n->item);
                                              ^
../AVLTreeTest.cpp:7:12: note: ‘int sort_compare(const int&, const int&)’ declared here, later in the translation unit
 static int sort_compare(const int &a, const int &b)
            ^
In file included from ../AVLTreeTest.cpp:4:0:
../AVLTree.h: In instantiation of ‘bool AVLTree<Item>::insert(AVLItem<Item>*, AVLItem<Item>**) [with Item = int]’:
../AVLTree.h:61:28:   required from ‘void AVLTree<Item>::add(const Item&) [with Item = int]’
../AVLTreeTest.cpp:31:24:   required from here
../AVLTree.h:168:62: error: ‘sort_compare’ was not declared in this scope, and no declarations were found by argument-dependent lookup at the point of instantiation [-fpermissive]
         int comp = sort_compare(new_node->item, (*node)->item);
                                                              ^
../AVLTreeTest.cpp:7:12: note: ‘int sort_compare(const int&, const int&)’ declared here, later in the translation unit
 static int sort_compare(const int &a, const int &b)
            ^
In file included from ../AVLTreeTest.cpp:4:0:
../AVLTree.h: In instantiation of ‘void AVLTree<Item>::print_dot_node(FILE*, AVLItem<Item>*, int&) [with Item = int; FILE = _IO_FILE]’:
../AVLTree.h:286:34:   required from ‘void AVLTree<Item>::make_dotfile(const char*) [with Item = int]’
../AVLTreeTest.cpp:49:28:   required from here
../AVLTree.h:220:40: error: ‘toString’ was not declared in this scope, and no declarations were found by argument-dependent lookup at the point of instantiation [-fpermissive]
                 me, toString(node->item), (int)node->balance);
                                        ^
../AVLTreeTest.cpp:20:20: note: ‘const char* toString(const int&)’ declared here, later in the translation unit
 static const char *toString(const int &i)
                    ^
../../../../configure/RULES_BUILD:209: recipe for target 'AVLTreeTest.o' failed
make[2]: *** [AVLTreeTest.o] Error 1
make[2]: Leaving directory '/home/wanglin/base-3.14.12.3/src/ChannelArchiver/Tools/O.linux-x86_64'
../../../configure/RULES_ARCHS:63: recipe for target 'install.linux-x86_64' failed
make[1]: *** [install.linux-x86_64] Error 2
make[1]: Leaving directory '/home/wanglin/base-3.14.12.3/src/ChannelArchiver/Tools'
../../configure/RULES_DIRS:70: recipe for target 'Tools.install' failed
make: *** [Tools.install] Error 2

If I move sort_compare() and toString() methods to the position before "#include AVLTree.h" in Tools/AVLTreeTest.cpp as follows, the problem is gone.

#include <stdio.h>
#include <stdlib.h>

static int sort_compare(const int &a, const int &b)
{   return b-a; }

static const char *toString(const int &i)
{
    static char txt[10];
    sprintf(txt, "%d", i);
    return txt;
}

#include "AVLTree.h"
#include "UnitTest.h"

static int avl_last_number;
static bool tree_is_ordered;

static void avl_order_test(const int &i, void *)
{
    if (i < avl_last_number)
        tree_is_ordered = false;
    avl_last_number = i;
}

Will this workaround cause any issue? Is there any other solution recommended?

My platform is Debian 8 (Jessie), gcc/g++ 4.9.2

Thanks,

Lin

[1] https://github.com/EPICSTools/ChannelArchiver

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Re: Channel Archiver compilation error Michael Davidsaver

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