File: no-store-suppression.cpp

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-11
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,418,840 kB
  • sloc: cpp: 5,290,826; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,898; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,913; xml: 953; cs: 573; fortran: 539
file content (22 lines) | stat: -rw-r--r-- 687 bytes parent folder | download | duplicates (22) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
 
// RUN: %clang_analyze_cc1 -analyzer-checker=core -verify %s

// expected-no-diagnostics

#include "Inputs/no-store-suppression.h"

using namespace std;

namespace value_uninitialized_after_stream_shift {
void use(char c);

// Technically, it is absolutely necessary to check the status of cin after
// read before using the value that just read from it. Practically, we don't
// really care unless we eventually come up with a special security check
// for just that purpose. Static Analyzer shouldn't be yelling at every person's
// third program in their C++ 101.
void foo() {
  char c;
  std::cin >> c;
  use(c); // no-warning
}
} // namespace value_uninitialized_after_stream_shift