https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47359
--- Comment #4 from Thomas Koenig <tkoenig at gcc dot gnu.org> --- Author: tkoenig Date: Sat Jun 6 16:12:39 2015 New Revision: 224190 URL: https://gcc.gnu.org/viewcvs?rev=224190&root=gcc&view=rev Log: 2015-06-06 Thomas Koenig <tkoe...@netcologne.de> PR fortran/47359 * arith.c (eval_intrinsic_op): Set warn flag for gfc_type_convert_binary if -Wconversion or -Wconversion-extra are set. (wprecision_real_real): New function. (wprecision_int_real): New function. (gfc_int2int): If -fno-range-check and -Wconversion are specified and it is a narrowing conversion, warn. (gfc_int2real): If there is a change in value for the conversion, warn. (gfc_int2complex): Likewise. (gfc_real2int): If there is a fractional part to the real number, warn with -Wconversion, otherwise warn with -Wconversion-extra. (gfc_real2real): Emit warning if the constant was changed by conversion with either -Wconversion or -Wconversion-extra. With -Wconversion-extra, warn if no warning was issued earlier. (gfc_real2complex): Likewise. (gfc_complex2int): For -Wconversion or -Wconversion-extra, if there was an imaginary part, warn; otherwise, warn for change in value. Warn with -Wconversion-extra if no other warning was issued. (gfc_complex2real): For -Wconversion or -Wconversion-extra, if there was an imaginary part, warn; otherwise, warn for change in value. Warn with -Wconversion-extra if no other warning was issued. (gfc_complex2complex): For -Wconversion, warn if the value of either the real or the imaginary part was changed. Warn for -Wconversion-extra if no prior warning was issued. * expr.c (gfc_check_assign): Remove check for change in value. * primary.c (match_real_constant): For -Wconversion-extra, check against a number in which the last non-zero digit has been replaced with a zero. If the number compares equal, warn. * intrinsic.c (gfc_convert_type_warn): Do not warn about constant conversions. 2015-06-06 Thomas Koenig <tkoe...@netcologne.de> PR fortran/47359 * gfortran.dg/array_constructor_type_17.f03: Adjust error message. * gfortran.dg/warn_conversion.f90: Add warning for change in value for assignment. * gfortran.dg/warn_conversion_3.f90: Add warnings. * gfortran.dg/warn_conversion_5.f90: New test. * gfortran.dg/warn_conversion_6.f90: New test. * gfortran.dg/warn_conversion_7.f90: New test. Added: trunk/gcc/testsuite/gfortran.dg/warn_conversion_5.f90 trunk/gcc/testsuite/gfortran.dg/warn_conversion_6.f90 trunk/gcc/testsuite/gfortran.dg/warn_conversion_7.f90 Modified: trunk/gcc/fortran/ChangeLog trunk/gcc/fortran/arith.c trunk/gcc/fortran/expr.c trunk/gcc/fortran/intrinsic.c trunk/gcc/fortran/primary.c trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/gfortran.dg/array_constructor_type_17.f03 trunk/gcc/testsuite/gfortran.dg/warn_conversion.f90 trunk/gcc/testsuite/gfortran.dg/warn_conversion_3.f90
