File: lambdas-modern.cpp

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb12u1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,634,792 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (28 lines) | stat: -rw-r--r-- 838 bytes parent folder | download | duplicates (12)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
// RUN: %clang_analyze_cc1 -std=c++14 -analyzer-checker=core,debug.ExprInspection -analyzer-config inline-lambdas=true -verify %s
// RUN: %clang_analyze_cc1 -std=c++17 -analyzer-checker=core,debug.ExprInspection -analyzer-config inline-lambdas=true -verify %s

#include "Inputs/system-header-simulator-cxx.h"

void clang_analyzer_warnIfReached();
void clang_analyzer_eval(int);

// Capture copy elided object.
struct Elided{
  int x = 14;
  Elided(int) {}
};

void testCopyElidedObjectCaptured(int x) {
  int r = [e = Elided(x)] {
    return e.x;
  }();
  
  clang_analyzer_eval(r == 14); // expected-warning{{TRUE}}
}

static auto MakeUniquePtr() { return std::make_unique<std::vector<int>>(); }

void testCopyElidedUniquePtr() {
  [uniquePtr = MakeUniquePtr()] {}();
  clang_analyzer_warnIfReached(); // expected-warning{{REACHABLE}}
}