From bug-octave-request at bevo dot che dot wisc dot edu Tue Dec 2 13:10:05 2003 Subject: Empty string isn't equivalent to empty matrix From: Geraint Paul Bevan To: bug-octave at bevo dot che dot wisc dot edu Date: Tue, 02 Dec 2003 19:08:53 +0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Bug report for Octave 2.1.52 configured for i386-pc-linux-gnu Description: - ----------- ~ Empty string "" no longer works as empty matrix [] in concatenation with scalar. ~ GNU Octave, version 2.1.50 (i386-pc-linux-gnu). ~ octave:1> s = [ "" ; 1 ] ~ s = 1 ~ GNU Octave, version 2.1.52 (i386-pc-linux-gnu). ~ octave:1> s = [ "" ; 1 ] ~ warning: implicit conversion from scalar to string ~ s =  Repeat-By: - --------- ~ octave:1> s = [ "" ; 1 ] Configuration (please do not edit this section): - ----------------------------------------------- uname output: Linux gbevan-pc 2.4.22 #1 Mon Nov 10 17:28:36 GMT 2003 i686 GNU/Linux configure opts: '--prefix=/usr' '--datadir=/usr/share' '--libdir=/usr/lib' '--libexecdir=/usr/lib' '--infodir=/usr/share/info' '--mandir=/usr/share/man' '--with-blas=/usr/lib/libblas2.so' '--with-lapack=/usr/lib/liblapack2.so' '--without-hdf5' '--with-fftw' '--with-g77=/usr/bin/g77' '--enable-shared' '--enable-rpath' '--disable-static' '--build' 'i386-linux' 'CC=/usr/bin/gcc' 'CXX=/usr/bin/g++' 'F77=/usr/bin/g77' 'build_alias=i386-linux' Fortran compiler: /usr/bin/g77 FFLAGS: -O2 F2C: F2CFLAGS: FLIBS: -L/usr/lib/gcc-lib/i486-linux/3.3.2 - -L/usr/lib/gcc-lib/i486-linux/3.3.2/../../.. -lfrtbegin -lg2c -lm -lgcc_s CPPFLAGS: INCFLAGS: -I. -I. -I./liboctave -I./src -I./libcruft/misc - -I./glob -I./glob C compiler: /usr/bin/gcc, version 3.3.2 (Debian) CFLAGS: -O2 CPICFLAG: -fPIC C++ compiler: /usr/bin/g++, version 3.3.2 CXXFLAGS: -O2 CXXPICFLAG: -fPIC LD_CXX: /usr/bin/g++ LDFLAGS: -s LIBFLAGS: -L. RLD_FLAG: -Wl,-rpath -Wl,/usr/lib/octave-2.1.52 BLAS_LIBS: /usr/lib/liblapack2.so /usr/lib/libblas2.so FFTW_LIBS: -lfftw LIBS: -lreadline -lncurses -ldl -lm LEXLIB: LIBPLPLOT: LIBDLFCN: LIBGLOB: ./glob/glob.o ./glob/fnmatch.o SED: /bin/sed DEFS: ~ -DPACKAGE_NAME="" -DPACKAGE_TARNAME="" -DPACKAGE_VERSION="" ~ -DPACKAGE_STRING="" -DPACKAGE_BUGREPORT="" -DOCTAVE_SOURCE=1 ~ -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 ~ -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 ~ -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 ~ -DHAVE_UNISTD_H=1 -DSEPCHAR=1 -DSEPCHAR_STR=":" -D__NO_MATH_INLINES=1 ~ -DCXX_NEW_FRIEND_TEMPLATE_DECL=1 -DCXX_ISO_COMPLIANT_LIBRARY=1 ~ -DCXX_ABI=gnu_v3 -DHAVE_LIBM=1 -DHAVE_FFTW_H=1 -DHAVE_FFTW=1 ~ -DF77_FUNC(name,NAME)=name ## _ -DF77_FUNC_(name,NAME)=name ## __ ~ -DHAVE_BLAS=1 -DHAVE_GETHOSTNAME=1 -DHAVE_GETPWNAM=1 -DHAVE_DEV_T=1 ~ -DHAVE_INO_T=1 -DHAVE_NLINK_T=1 -DHAVE_NLINK_T=1 -DHAVE_LONG_LONG_INT=1 ~ -DHAVE_UNSIGNED_LONG_LONG_INT=1 -DHAVE_SIGSET_T=1 -DHAVE_SIG_ATOMIC_T=1 ~ -DSIZEOF_SHORT=2 -DSIZEOF_INT=4 -DSIZEOF_LONG=4 -DSIZEOF_LONG_LONG=8 ~ -DHAVE_ALLOCA_H=1 -DHAVE_ALLOCA=1 -DNPOS=std::string::npos ~ -DHAVE_PLACEMENT_DELETE=1 -DHAVE_DYNAMIC_AUTO_ARRAYS=1 -DSTDC_HEADERS=1 ~ -DHAVE_DIRENT_H=1 -DTIME_WITH_SYS_TIME=1 -DHAVE_SYS_WAIT_H=1 ~ -DHAVE_ASSERT_H=1 -DHAVE_CURSES_H=1 -DHAVE_DLFCN_H=1 -DHAVE_FCNTL_H=1 ~ -DHAVE_FLOAT_H=1 -DHAVE_GRP_H=1 -DHAVE_LIMITS_H=1 -DHAVE_MEMORY_H=1 ~ -DHAVE_NCURSES_H=1 -DHAVE_POLL_H=1 -DHAVE_PWD_H=1 -DHAVE_STDLIB_H=1 ~ -DHAVE_STRING_H=1 -DHAVE_SYS_IOCTL_H=1 -DHAVE_SYS_PARAM_H=1 ~ -DHAVE_SYS_POLL_H=1 -DHAVE_SYS_RESOURCE_H=1 -DHAVE_SYS_SELECT_H=1 ~ -DHAVE_SYS_STAT_H=1 -DHAVE_SYS_TIME_H=1 -DHAVE_SYS_TIMES_H=1 ~ -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_UTSNAME_H=1 -DHAVE_TERMCAP_H=1 ~ -DHAVE_UNISTD_H=1 -DHAVE_SSTREAM=1 -DHAVE_TERMIO_H=1 -DHAVE_SGTTY_H=1 ~ -DHAVE_GLOB_H=1 -DHAVE_FNMATCH_H=1 -DHAVE_ATEXIT=1 -DHAVE_BASENAME=1 ~ -DHAVE_BCOPY=1 -DHAVE_BZERO=1 -DHAVE_DUP2=1 -DHAVE_ENDGRENT=1 ~ -DHAVE_ENDPWENT=1 -DHAVE_EXECVP=1 -DHAVE_FCNTL=1 -DHAVE_FORK=1 ~ -DHAVE_GETCWD=1 -DHAVE_GETEGID=1 -DHAVE_GETEUID=1 -DHAVE_GETGID=1 ~ -DHAVE_GETGRENT=1 -DHAVE_GETGRGID=1 -DHAVE_GETGRNAM=1 -DHAVE_GETPGRP=1 ~ -DHAVE_GETPID=1 -DHAVE_GETPPID=1 -DHAVE_GETPWENT=1 -DHAVE_GETPWUID=1 ~ -DHAVE_GETTIMEOFDAY=1 -DHAVE_GETUID=1 -DHAVE_GETWD=1 -DHAVE_KILL=1 ~ -DHAVE_LINK=1 -DHAVE_LOCALTIME_R=1 -DHAVE_LSTAT=1 -DHAVE_MEMMOVE=1 ~ -DHAVE_MKDIR=1 -DHAVE_MKFIFO=1 -DHAVE_MKSTEMP=1 -DHAVE_ON_EXIT=1 ~ -DHAVE_PIPE=1 -DHAVE_POLL=1 -DHAVE_PUTENV=1 -DHAVE_RAISE=1 ~ -DHAVE_READLINK=1 -DHAVE_RENAME=1 -DHAVE_RINDEX=1 -DHAVE_RMDIR=1 ~ -DHAVE_SELECT=1 -DHAVE_SETGRENT=1 -DHAVE_SETPWENT=1 -DHAVE_SETVBUF=1 ~ -DHAVE_SIGACTION=1 -DHAVE_SIGLONGJMP=1 -DHAVE_SIGPENDING=1 ~ -DHAVE_SIGPROCMASK=1 -DHAVE_SIGSUSPEND=1 -DHAVE_STAT=1 - -DHAVE_STRCASECMP=1 ~ -DHAVE_STRDUP=1 -DHAVE_STRERROR=1 -DHAVE_STRFTIME=1 -DHAVE_STRNCASECMP=1 ~ -DHAVE_STRPTIME=1 -DHAVE_SYMLINK=1 -DHAVE_TEMPNAM=1 -DHAVE_UMASK=1 ~ -DHAVE_UNLINK=1 -DHAVE_USLEEP=1 -DHAVE_VFPRINTF=1 -DHAVE_VSPRINTF=1 ~ -DHAVE_VSNPRINTF=1 -DHAVE_WAITPID=1 -DHAVE_LIBDL=1 -DHAVE_DLOPEN=1 ~ -DHAVE_DLSYM=1 -DHAVE_DLERROR=1 -DHAVE_DLCLOSE=1 -DHAVE_DLOPEN_API=1 ~ -DENABLE_DYNAMIC_LINKING=1 -DHAVE_TIMEVAL=1 -DHAVE_FINITE=1 - -DHAVE_ISNAN=1 ~ -DHAVE_ISINF=1 -DHAVE_COPYSIGN=1 -DHAVE_ACOSH=1 -DHAVE_ASINH=1 ~ -DHAVE_ATANH=1 -DHAVE_ERF=1 -DHAVE_ERFC=1 -DHAVE_STRUCT_STAT_ST_BLKSIZE=1 ~ -DHAVE_STRUCT_STAT_ST_BLOCKS=1 -DHAVE_STRUCT_STAT_ST_RDEV=1 ~ -DHAVE_STRUCT_TM_TM_ZONE=1 -DHAVE_TM_ZONE=1 -DUSE_READLINE=1 ~ -DEXCEPTION_IN_MATH=1 -DRETSIGTYPE=void -DSYS_SIGLIST_DECLARED=1 ~ -DHAVE_SYS_SIGLIST=1 -DHAVE_POSIX_SIGNALS=1 -DHAVE_GETRUSAGE=1 ~ -DHAVE_TIMES=1 -DYYTEXT_POINTER=1 -DGNUPLOT_BINARY="gnuplot" ~ -DGNUPLOT_HAS_FRAMES=1 - -- Geraint Bevan http://www.mech.gla.ac.uk/~gbevan -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.2 (GNU/Linux) iEYEARECAAYFAj/M40UACgkQcXV3N50QmNOUgACgi1wMv3nISgiVFAT9SUjv9Ztq fCAAoICyXFTk3DlYLSH6IHiPwBJkJP9k =sTI0 -----END PGP SIGNATURE----- ------------------------------------------------------------- Octave is freely available under the terms of the GNU GPL. 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