blob: 744a156d0f5bbc4ea0f58c2876835e32e52c35f6 [file] [log] [blame]
// RUN: %clang_analyze_cc1 -verify %s \
// RUN: -analyzer-checker=core \
// RUN: -analyzer-checker=apiModeling.Errno \
// RUN: -analyzer-checker=debug.ErrnoTest \
// RUN: -analyzer-checker=unix.Errno \
// RUN: -analyzer-config unix.Errno:AllowErrnoReadOutsideConditionExpressions=false \
// RUN: -DERRNO_VAR
// RUN: %clang_analyze_cc1 -verify %s \
// RUN: -analyzer-checker=core \
// RUN: -analyzer-checker=apiModeling.Errno \
// RUN: -analyzer-checker=debug.ErrnoTest \
// RUN: -analyzer-checker=unix.Errno \
// RUN: -analyzer-config unix.Errno:AllowErrnoReadOutsideConditionExpressions=false \
// RUN: -DERRNO_FUNC
#include "Inputs/system-header-simulator.h"
#ifdef ERRNO_VAR
#include "Inputs/errno_var.h"
#endif
#ifdef ERRNO_FUNC
#include "Inputs/errno_func.h"
#endif
int ErrnoTesterChecker_setErrnoIfError();
void test_cond() {
ErrnoTesterChecker_setErrnoIfError();
int A = errno ? 1 : 2;
// expected-warning@-1{{An undefined value may be read from 'errno'}}
}
void test_errno_store_into_variable() {
ErrnoTesterChecker_setErrnoIfError();
int a = errno;
// expected-warning@-1{{An undefined value may be read from 'errno'}}
}
void test_errno_store_into_variable_in_expr() {
ErrnoTesterChecker_setErrnoIfError();
int a = 4 + errno;
// expected-warning@-1{{An undefined value may be read from 'errno'}}
}
int test_errno_return() {
ErrnoTesterChecker_setErrnoIfError();
return errno;
// expected-warning@-1{{An undefined value may be read from 'errno'}}
}
int test_errno_return_expr() {
ErrnoTesterChecker_setErrnoIfError();
return errno > 10;
// expected-warning@-1{{An undefined value may be read from 'errno'}}
}