https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90509
Bug ID: 90509
Summary: failing typing std::transform with policies on
std::insert_iterator
Product: gcc
Version: 9.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: maurizio.drocco at pnnl dot gov
Target Milestone: ---
Created attachment 46367
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46367&action=edit
source code
The attached code fails to compile due to a typing issue:
gcc/9.1.0/include/c++/9.1.0/pstl/glue_algorithm_impl.h:328:9:
error: invalid parameter type '_OutputType' {aka 'void'}
It looks like the transform with policy relies on the iterator traits to
extract a 'reference' type, that is not defined for insert iterators.
*** how to replicate:
- without execution policies: (working)
g++-9 -Wall -Wextra -std=c++17 -O3 -o transform transform.cc
- with execution policies: (failing)
g++-9 -Wall -Wextra -std=c++17 -O3 -DPOLICY -o transform transform.cc
*** GCC version:
g++-9 -v
Using built-in specs.
COLLECT_GCC=g++-9
COLLECT_LTO_WRAPPER=/usr/local/Cellar/gcc/9.1.0/libexec/gcc/x86_64-apple-darwin18/9.1.0/lto-wrapper
Target: x86_64-apple-darwin18
Configured with: ../configure --build=x86_64-apple-darwin18
--prefix=/usr/local/Cellar/gcc/9.1.0
--libdir=/usr/local/Cellar/gcc/9.1.0/lib/gcc/9 --disable-nls
--enable-checking=release --enable-languages=c,c++,objc,obj-c++,fortran
--program-suffix=-9 --with-gmp=/usr/local/opt/gmp
--with-mpfr=/usr/local/opt/mpfr --with-mpc=/usr/local/opt/libmpc
--with-isl=/usr/local/opt/isl --with-system-zlib --with-pkgversion='Homebrew
GCC 9.1.0' --with-bugurl=https://github.com/Homebrew/homebrew-core/issues
--disable-multilib --with-native-system-header-dir=/usr/include
--with-sysroot=/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk
Thread model: posix
gcc version 9.1.0 (Homebrew GCC 9.1.0)
