head	1.1;
branch	1.1.1;
access;
symbols
	netbsd-11-0-RC5:1.1.1.2
	netbsd-11-0-RC4:1.1.1.2
	netbsd-11-0-RC3:1.1.1.2
	netbsd-11-0-RC2:1.1.1.2
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	pgoyette-compat-0728:1.1.1.1
	clang-337282:1.1.1.1
	LLVM:1.1.1;
locks; strict;
comment	@// @;


1.1
date	2018.07.17.18.31.36;	author joerg;	state Exp;
branches
	1.1.1.1;
next	;
commitid	wDzL46ALjrCZgwKA;

1.1.1.1
date	2018.07.17.18.31.36;	author joerg;	state Exp;
branches
	1.1.1.1.2.1
	1.1.1.1.4.1;
next	1.1.1.2;
commitid	wDzL46ALjrCZgwKA;

1.1.1.2
date	2019.11.13.22.22.55;	author joerg;	state dead;
branches;
next	;
commitid	QD8YATxuNG34YJKB;

1.1.1.1.2.1
date	2018.07.17.18.31.36;	author pgoyette;	state dead;
branches;
next	1.1.1.1.2.2;
commitid	1UP1xAIUxv1ZgRLA;

1.1.1.1.2.2
date	2018.07.28.04.34.11;	author pgoyette;	state Exp;
branches;
next	;
commitid	1UP1xAIUxv1ZgRLA;

1.1.1.1.4.1
date	2018.07.17.18.31.36;	author christos;	state dead;
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next	1.1.1.1.4.2;
commitid	jtc8rnCzWiEEHGqB;

1.1.1.1.4.2
date	2019.06.10.21.46.35;	author christos;	state Exp;
branches;
next	1.1.1.1.4.3;
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1.1.1.1.4.3
date	2020.04.13.07.50.22;	author martin;	state dead;
branches;
next	;
commitid	X01YhRUPVUDaec4C;


desc
@@


1.1
log
@Initial revision
@
text
@// RUN: %clang_cc1 -std=c++1z -Wno-binding-in-condition -verify %s

struct X {
  bool flag;
  int data;
  constexpr explicit operator bool() const {
    return flag;
  }
  constexpr operator int() const {
    return data;
  }
};

namespace CondInIf {
constexpr int f(X x) {
  if (auto [ok, d] = x)
    return d + int(ok);
  else
    return d * int(ok);
  ok = {}; // expected-error {{use of undeclared identifier 'ok'}}
  d = {};  // expected-error {{use of undeclared identifier 'd'}}
}

static_assert(f({true, 2}) == 3);
static_assert(f({false, 2}) == 0);

constexpr char g(char const (&x)[2]) {
  if (auto &[a, b] = x)
    return a;
  else
    return b;

  if (auto [a, b] = x) // expected-error {{an array type is not allowed here}}
    ;
}

static_assert(g("x") == 'x');
} // namespace CondInIf

namespace CondInSwitch {
constexpr int f(int n) {
  switch (X s = {true, n}; auto [ok, d] = s) {
    s = {};
  case 0:
    return int(ok);
  case 1:
    return d * 10;
  case 2:
    return d * 40;
  default:
    return 0;
  }
  ok = {}; // expected-error {{use of undeclared identifier 'ok'}}
  d = {};  // expected-error {{use of undeclared identifier 'd'}}
  s = {};  // expected-error {{use of undeclared identifier 's'}}
}

static_assert(f(0) == 1);
static_assert(f(1) == 10);
static_assert(f(2) == 80);
} // namespace CondInSwitch

namespace CondInWhile {
constexpr int f(int n) {
  int m = 1;
  while (auto [ok, d] = X{n > 1, n}) {
    m *= d;
    --n;
  }
  return m;
  return ok; // expected-error {{use of undeclared identifier 'ok'}}
}

static_assert(f(0) == 1);
static_assert(f(1) == 1);
static_assert(f(4) == 24);
} // namespace CondInWhile

namespace CondInFor {
constexpr int f(int n) {
  int a = 1, b = 1;
  for (X x = {true, n}; auto &[ok, d] = x; --d) {
    if (d < 2)
      ok = false;
    else {
      int x = b;
      b += a;
      a = x;
    }
  }
  return b;
  return d; // expected-error {{use of undeclared identifier 'd'}}
}

static_assert(f(0) == 1);
static_assert(f(1) == 1);
static_assert(f(2) == 2);
static_assert(f(5) == 8);
} // namespace CondInFor
@


1.1.1.1
log
@Import clang r337282 from trunk
@
text
@@


1.1.1.2
log
@Mark old LLVM instance as dead.
@
text
@@


1.1.1.1.4.1
log
@file decomposed-condition.cpp was added on branch phil-wifi on 2019-06-10 21:46:35 +0000
@
text
@d1 99
@


1.1.1.1.4.2
log
@Sync with HEAD
@
text
@a0 99
// RUN: %clang_cc1 -std=c++1z -Wno-binding-in-condition -verify %s

struct X {
  bool flag;
  int data;
  constexpr explicit operator bool() const {
    return flag;
  }
  constexpr operator int() const {
    return data;
  }
};

namespace CondInIf {
constexpr int f(X x) {
  if (auto [ok, d] = x)
    return d + int(ok);
  else
    return d * int(ok);
  ok = {}; // expected-error {{use of undeclared identifier 'ok'}}
  d = {};  // expected-error {{use of undeclared identifier 'd'}}
}

static_assert(f({true, 2}) == 3);
static_assert(f({false, 2}) == 0);

constexpr char g(char const (&x)[2]) {
  if (auto &[a, b] = x)
    return a;
  else
    return b;

  if (auto [a, b] = x) // expected-error {{an array type is not allowed here}}
    ;
}

static_assert(g("x") == 'x');
} // namespace CondInIf

namespace CondInSwitch {
constexpr int f(int n) {
  switch (X s = {true, n}; auto [ok, d] = s) {
    s = {};
  case 0:
    return int(ok);
  case 1:
    return d * 10;
  case 2:
    return d * 40;
  default:
    return 0;
  }
  ok = {}; // expected-error {{use of undeclared identifier 'ok'}}
  d = {};  // expected-error {{use of undeclared identifier 'd'}}
  s = {};  // expected-error {{use of undeclared identifier 's'}}
}

static_assert(f(0) == 1);
static_assert(f(1) == 10);
static_assert(f(2) == 80);
} // namespace CondInSwitch

namespace CondInWhile {
constexpr int f(int n) {
  int m = 1;
  while (auto [ok, d] = X{n > 1, n}) {
    m *= d;
    --n;
  }
  return m;
  return ok; // expected-error {{use of undeclared identifier 'ok'}}
}

static_assert(f(0) == 1);
static_assert(f(1) == 1);
static_assert(f(4) == 24);
} // namespace CondInWhile

namespace CondInFor {
constexpr int f(int n) {
  int a = 1, b = 1;
  for (X x = {true, n}; auto &[ok, d] = x; --d) {
    if (d < 2)
      ok = false;
    else {
      int x = b;
      b += a;
      a = x;
    }
  }
  return b;
  return d; // expected-error {{use of undeclared identifier 'd'}}
}

static_assert(f(0) == 1);
static_assert(f(1) == 1);
static_assert(f(2) == 2);
static_assert(f(5) == 8);
} // namespace CondInFor
@


1.1.1.1.4.3
log
@Mostly merge changes from HEAD upto 20200411
@
text
@@


1.1.1.1.2.1
log
@file decomposed-condition.cpp was added on branch pgoyette-compat on 2018-07-28 04:34:11 +0000
@
text
@d1 99
@


1.1.1.1.2.2
log
@Sync with HEAD
@
text
@a0 99
// RUN: %clang_cc1 -std=c++1z -Wno-binding-in-condition -verify %s

struct X {
  bool flag;
  int data;
  constexpr explicit operator bool() const {
    return flag;
  }
  constexpr operator int() const {
    return data;
  }
};

namespace CondInIf {
constexpr int f(X x) {
  if (auto [ok, d] = x)
    return d + int(ok);
  else
    return d * int(ok);
  ok = {}; // expected-error {{use of undeclared identifier 'ok'}}
  d = {};  // expected-error {{use of undeclared identifier 'd'}}
}

static_assert(f({true, 2}) == 3);
static_assert(f({false, 2}) == 0);

constexpr char g(char const (&x)[2]) {
  if (auto &[a, b] = x)
    return a;
  else
    return b;

  if (auto [a, b] = x) // expected-error {{an array type is not allowed here}}
    ;
}

static_assert(g("x") == 'x');
} // namespace CondInIf

namespace CondInSwitch {
constexpr int f(int n) {
  switch (X s = {true, n}; auto [ok, d] = s) {
    s = {};
  case 0:
    return int(ok);
  case 1:
    return d * 10;
  case 2:
    return d * 40;
  default:
    return 0;
  }
  ok = {}; // expected-error {{use of undeclared identifier 'ok'}}
  d = {};  // expected-error {{use of undeclared identifier 'd'}}
  s = {};  // expected-error {{use of undeclared identifier 's'}}
}

static_assert(f(0) == 1);
static_assert(f(1) == 10);
static_assert(f(2) == 80);
} // namespace CondInSwitch

namespace CondInWhile {
constexpr int f(int n) {
  int m = 1;
  while (auto [ok, d] = X{n > 1, n}) {
    m *= d;
    --n;
  }
  return m;
  return ok; // expected-error {{use of undeclared identifier 'ok'}}
}

static_assert(f(0) == 1);
static_assert(f(1) == 1);
static_assert(f(4) == 24);
} // namespace CondInWhile

namespace CondInFor {
constexpr int f(int n) {
  int a = 1, b = 1;
  for (X x = {true, n}; auto &[ok, d] = x; --d) {
    if (d < 2)
      ok = false;
    else {
      int x = b;
      b += a;
      a = x;
    }
  }
  return b;
  return d; // expected-error {{use of undeclared identifier 'd'}}
}

static_assert(f(0) == 1);
static_assert(f(1) == 1);
static_assert(f(2) == 2);
static_assert(f(5) == 8);
} // namespace CondInFor
@