Experimental Physics and
Industrial Control System

"Johnson, Andrew N." <[email protected]> · Sat, 6 Sep 2014 02:00:41 +0000

Hi Matt,

The logic in epicsTypes.h will not work for C++ code because the compiler doesn't define that macro (and adding -std=c99 or gnu99 is a C standard only, g++ will reject it). I have fixed the epicsTypes.h file for the upcoming 3.15 release, but for 3.14 we couldn't support 64-bit types because we had to be able to build on VxWorks 5.4.2 which does not provide them on all architectures.

Until 3.15.1 comes out I recommend just using long long, which maps to 64-bit integers on all our main architectures — on Windows long is only 32 bits wide. Note though that even VxWorks 6.x does not provide strtoll() or strtoull(), but Base 3.15.1 will provide them.

- Andrew

-- 
Sent from my iPad

> On Sep 5, 2014, at 18:40, "Pearson, Matthew R." <[email protected]> wrote:
> 
> 
> Hi,
> 
> I noticed that epicsUInt64 is not defined on my 64-bit system. In epicsTypes.h I see:
> 
> #if __STDC_VERSION__ >= 199901L
>    typedef int8_t          epicsInt8;
>    typedef uint8_t         epicsUInt8;
>    typedef int16_t         epicsInt16;
>    typedef uint16_t        epicsUInt16;
>    typedef epicsUInt16     epicsEnum16;
>    typedef int32_t         epicsInt32;
>    typedef uint32_t        epicsUInt32;
>    typedef int64_t         epicsInt64;
>    typedef uint64_t        epicsUInt64;
> #else
>    typedef char            epicsInt8;
>    typedef unsigned char   epicsUInt8;
>    typedef short           epicsInt16;
>    typedef unsigned short  epicsUInt16;
>    typedef epicsUInt16     epicsEnum16;
>    typedef int             epicsInt32;
>    typedef unsigned int    epicsUInt32;
> #endif
> 
> So I tried setting -D__STDC_VERSION__=199901L in:
> configure/os/CONFIG.Common.linuxCommon
> 
> But I suspect that's the wrong way to do it, because base failed to compile:
> 
> /usr/bin/g++ -c  -D_POSIX_C_SOURCE=199506L -D_POSIX_THREADS -D_XOPEN_SOURCE=500 -D__STDC_VERSION__=199901L           -D_X86_64_  -DUNIX  -D_BSD_SOURCE -Dlinux  -D_REENTRANT   -g   -Wall      -m64     -fPIC -MMD -I. -I../O.Common -I. -I.. -I../../../include/os/Linux -I../../../include        ../cac.cpp 
> In file included from ../comBuf.h:34,
>                 from ../cac.h:44,
>                 from ../cac.cpp:39:
> ../../../include/osiWireFormat.h: In function ‘void WireSet(const T&, epicsUInt8*) [with T = char]’:
> ../comBuf.h:237:   instantiated from ‘unsigned int comBuf::push(const T*, unsigned int) [with T = char]’
> ../comQueSend.h:123:   instantiated from ‘void comQueSend::push(const T*, unsigned int) [with T = char]’
> ../comQueSend.h:206:   instantiated from here
> ../../../include/osiWireFormat.h:208: error: ‘tmp’ has incomplete type
> 
> 
> But I'm sure many people are using C99. Any ideas?
> 
> Cheers,
> Matt
> 
> 
> ps.
> 
> [mkp@bl99-dassrv1 base]$ rpm -q libstdc++
> libstdc++-4.4.7-3.el6.x86_64
> [mkp@bl99-dassrv1 base]$ g++ -v
> Using built-in specs.
> Target: x86_64-redhat-linux
> Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-java-awt=gtk --disable-dssi --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre --enable-libgcj-multifile --enable-java-maintainer-mode --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --disable-libjava-multilib --with-ppl --with-cloog --with-tune=generic --with-arch_32=i686 --build=x86_64-redhat-linux
> Thread model: posix
> gcc version 4.4.7 20120313 (Red Hat 4.4.7-3) (GCC)
> 
> 
> 
> 
> Data Acquisition and Control Engineer
> Spallation Neutron Source
> Oak Ridge National Lab
> 
> 
> 
> 
> 
> 

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System