[LLVMbugs] [Bug 24304] New: Segmentation fault: 11 with >= in lambda in c++11
bugzilla-daemon at llvm.org
bugzilla-daemon at llvm.org
Wed Jul 29 10:42:39 PDT 2015
https://llvm.org/bugs/show_bug.cgi?id=24304
Bug ID: 24304
Summary: Segmentation fault: 11 with >= in lambda in c++11
Product: clang
Version: unspecified
Hardware: Macintosh
OS: MacOS X
Status: NEW
Severity: normal
Priority: P
Component: C++11
Assignee: unassignedclangbugs at nondot.org
Reporter: mars.lenjoy at gmail.com
CC: dgregor at apple.com, llvmbugs at cs.uiuc.edu
Classification: Unclassified
I filed this because I assume this is not a deprecated version.
This is the current g++ in my OS X 10.9.5
$ g++ --version
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr
--with-gxx-include-dir=/usr/include/c++/4.2.1
Apple LLVM version 6.0 (clang-600.0.57) (based on LLVM 3.5svn)
Target: x86_64-apple-darwin13.4.0
Thread model: posix
<code>
#include <iostream>
#include <vector>
#include <algorithm>
#include <utility>
#include <string>
using namespace std;
int main() {
vector<pair<string, int>> vec2 = {
pair<string, int>("aaa", 3),
pair<string, int>("baaa", 4),
pair<string, int>("bbaaa", 5),
pair<string, int>("bbaac", 5),
pair<string, int>("bbbaaa", 6),
pair<string, int>("cccddd", 6),
pair<string, int>("ddd", 3)};
sort(vec2.begin(), vec2.end(),
[](const pair<string, int> &p1, const pair<string, int> &p2) {
cout << p1.second << " vs " << p2.second << endl;
// No problem with ">"
// if (p1.second > p2.second) { return true; }
// Segmentation fault: 11 with ">=",
// it's related to the data in vec2.
if (p1.second >= p2.second) { return true; }
return false;
});
for (const auto &p : vec2) {
cout << p.first << ", " << p.second << endl;
}
cout << endl;
}
</code>
$ g++ test.cpp -std=c++11
$ ./a.out
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