https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109953
Bug ID: 109953
Summary: segmentation fault with import "functional" during
program execution
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: saifi.khan at nishan dot io
Target Milestone: ---
environment GNU/Linux 6.3.3 gcc 14.0.0 glibc 2.37-3
command 'g++ -std=c++23 -v -g3 -Wall -fmodules-ts'
Here is the program
import "iostream";
import "functional";
import "string_view";
auto test (std::string_view sv) -> void {
std::cout << sv.substr (std::size_t {0}, std::size_t {8})
<< '\n';
}
auto main () -> int {
test ("Free Software Community");
return 0;
}
When the program is executed, it encounters a segmentation fault.
The stack trace is as follows
Program received signal SIGSEGV, Segmentation fault.
0x0000555555555344 in std::min<unsigned long> (__a=@0x7fffffffe0d8: 8,
__b=@0x7fffffffe0f8: 23) at /opt/gcc/include/c++/14.0.0/bits/stl_algobase.h:238
238 if (__b < __a)
(gdb) bt
#0 0x0000555555555344 in std::min<unsigned long> (__a=@0x7fffffffe0d8: 8,
__b=@0x7fffffffe0f8: 23) at /opt/gcc/include/c++/14.0.0/bits/stl_algobase.h:238
#1 0x00005555555553bf in std::basic_string_view<char, std::char_traits<char>
>::substr (this=0x7fffffffe130, __pos=0, __n=8)
at /opt/gcc/include/c++/14.0.0/string_view:336
#2 0x00005555555551c4 in test (sv="Free Software Community") at
str_view_01.cc:10
#3 0x0000555555555230 in main () at str_view_01.cc:16
(gdb)
NOTE
when the line 'import "functional";' is commented out and the program is
re-compiled. It executes and prints the expected result "Free Sof".
