163 lines · cpp
1// RUN: %libomp-cxx20-compile-and-run | FileCheck %s --match-full-lines2 3#ifndef HEADER4#define HEADER5 6#include <cstdlib>7#include <cstdarg>8#include <cstdio>9#include <vector>10 11struct Reporter {12 const char *name;13 14 Reporter(const char *name) : name(name) { print("ctor"); }15 16 Reporter() : name("<anon>") { print("ctor"); }17 18 Reporter(const Reporter &that) : name(that.name) { print("copy ctor"); }19 20 Reporter(Reporter &&that) : name(that.name) { print("move ctor"); }21 22 ~Reporter() { print("dtor"); }23 24 const Reporter &operator=(const Reporter &that) {25 print("copy assign");26 this->name = that.name;27 return *this;28 }29 30 const Reporter &operator=(Reporter &&that) {31 print("move assign");32 this->name = that.name;33 return *this;34 }35 36 struct Iterator {37 const Reporter *owner;38 int pos;39 40 Iterator(const Reporter *owner, int pos) : owner(owner), pos(pos) {}41 42 Iterator(const Iterator &that) : owner(that.owner), pos(that.pos) {43 owner->print("iterator copy ctor");44 }45 46 Iterator(Iterator &&that) : owner(that.owner), pos(that.pos) {47 owner->print("iterator move ctor");48 }49 50 ~Iterator() { owner->print("iterator dtor"); }51 52 const Iterator &operator=(const Iterator &that) {53 owner->print("iterator copy assign");54 this->owner = that.owner;55 this->pos = that.pos;56 return *this;57 }58 59 const Iterator &operator=(Iterator &&that) {60 owner->print("iterator move assign");61 this->owner = that.owner;62 this->pos = that.pos;63 return *this;64 }65 66 bool operator==(const Iterator &that) const {67 owner->print("iterator %d == %d", 2 - this->pos, 2 - that.pos);68 return this->pos == that.pos;69 }70 71 Iterator &operator++() {72 owner->print("iterator prefix ++");73 pos -= 1;74 return *this;75 }76 77 Iterator operator++(int) {78 owner->print("iterator postfix ++");79 auto result = *this;80 pos -= 1;81 return result;82 }83 84 int operator*() const {85 int result = 2 - pos;86 owner->print("iterator deref: %i", result);87 return result;88 }89 90 size_t operator-(const Iterator &that) const {91 int result = (2 - this->pos) - (2 - that.pos);92 owner->print("iterator distance: %d", result);93 return result;94 }95 96 Iterator operator+(int steps) const {97 owner->print("iterator advance: %i += %i", 2 - this->pos, steps);98 return Iterator(owner, pos - steps);99 }100 101 void print(const char *msg) const { owner->print(msg); }102 };103 104 Iterator begin() const {105 print("begin()");106 return Iterator(this, 2);107 }108 109 Iterator end() const {110 print("end()");111 return Iterator(this, -1);112 }113 114 void print(const char *msg, ...) const {115 va_list args;116 va_start(args, msg);117 printf("[%s] ", name);118 vprintf(msg, args);119 printf("\n");120 va_end(args);121 }122};123 124int main() {125 printf("do\n");126#pragma omp reverse127 for (Reporter c{"init-stmt"}; auto &&v : Reporter("range"))128 printf("v=%d\n", v);129 printf("done\n");130 return EXIT_SUCCESS;131}132 133#endif /* HEADER */134 135// CHECK: do136// CHECK-NEXT: [init-stmt] ctor137// CHECK-NEXT: [range] ctor138// CHECK-NEXT: [range] end()139// CHECK-NEXT: [range] begin()140// CHECK-NEXT: [range] begin()141// CHECK-NEXT: [range] iterator distance: 3142// CHECK-NEXT: [range] iterator advance: 0 += 2143// CHECK-NEXT: [range] iterator move assign144// CHECK-NEXT: [range] iterator deref: 2145// CHECK-NEXT: v=2146// CHECK-NEXT: [range] iterator dtor147// CHECK-NEXT: [range] iterator advance: 0 += 1148// CHECK-NEXT: [range] iterator move assign149// CHECK-NEXT: [range] iterator deref: 1150// CHECK-NEXT: v=1151// CHECK-NEXT: [range] iterator dtor152// CHECK-NEXT: [range] iterator advance: 0 += 0153// CHECK-NEXT: [range] iterator move assign154// CHECK-NEXT: [range] iterator deref: 0155// CHECK-NEXT: v=0156// CHECK-NEXT: [range] iterator dtor157// CHECK-NEXT: [range] iterator dtor158// CHECK-NEXT: [range] iterator dtor159// CHECK-NEXT: [range] iterator dtor160// CHECK-NEXT: [range] dtor161// CHECK-NEXT: [init-stmt] dtor162// CHECK-NEXT: done163