1 // RUN: %clang_cc1 -verify -fopenmp -ferror-limit 100 %s 2 3 void foo() { 4 } 5 6 bool foobool(int argc) { 7 return argc; 8 } 9 10 struct S1; // expected-note {{declared here}} 11 12 #define redef_num_threads(a, b) num_threads(a) 13 14 template <class T, typename S, int N> // expected-note {{declared here}} 15 T tmain(T argc, S **argv) { 16 #pragma omp parallel num_threads // expected-error {{expected '(' after 'num_threads'}} 17 #pragma omp parallel num_threads ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}} 18 #pragma omp parallel num_threads () // expected-error {{expected expression}} 19 #pragma omp parallel num_threads (argc // expected-error {{expected ')'}} expected-note {{to match this '('}} 20 #pragma omp parallel num_threads (argc)) // expected-warning {{extra tokens at the end of '#pragma omp parallel' are ignored}} 21 #pragma omp parallel num_threads ((argc > 0) ? argv[1] : argv[2]) // expected-error 2 {{expression must have integral or unscoped enumeration type, not 'char *'}} 22 #pragma omp parallel num_threads (foobool(argc)), num_threads (true), num_threads (-5) // expected-error 2 {{directive '#pragma omp parallel' cannot contain more than one 'num_threads' clause}} expected-error {{argument to 'num_threads' clause must be a strictly positive integer value}} 23 #pragma omp parallel num_threads (S) // expected-error {{'S' does not refer to a value}} 24 #pragma omp parallel num_threads (argv[1]=2) // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error 2 {{expression must have integral or unscoped enumeration type, not 'char *'}} 25 #pragma omp parallel num_threads (argc) 26 #pragma omp parallel num_threads (N) // expected-error {{argument to 'num_threads' clause must be a strictly positive integer value}} 27 #pragma omp parallel redef_num_threads (argc, argc) 28 foo(); 29 30 return argc; 31 } 32 33 int main(int argc, char **argv) { 34 #pragma omp parallel num_threads // expected-error {{expected '(' after 'num_threads'}} 35 #pragma omp parallel num_threads ( // expected-error {{expected expression}} expected-error {{expected ')'}} expected-note {{to match this '('}} 36 #pragma omp parallel num_threads () // expected-error {{expected expression}} 37 #pragma omp parallel num_threads (argc // expected-error {{expected ')'}} expected-note {{to match this '('}} 38 #pragma omp parallel num_threads (argc)) // expected-warning {{extra tokens at the end of '#pragma omp parallel' are ignored}} 39 #pragma omp parallel num_threads (argc > 0 ? argv[1] : argv[2]) // expected-error {{integral }} 40 #pragma omp parallel num_threads (foobool(argc)), num_threads (true), num_threads (-5) // expected-error 2 {{directive '#pragma omp parallel' cannot contain more than one 'num_threads' clause}} expected-error {{argument to 'num_threads' clause must be a strictly positive integer value}} 41 #pragma omp parallel num_threads (S1) // expected-error {{'S1' does not refer to a value}} 42 #pragma omp parallel num_threads (argv[1]=2) // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{expression must have integral or unscoped enumeration type, not 'char *'}} 43 #pragma omp parallel num_threads (num_threads(tmain<int, char, -1>(argc, argv) // expected-error 2 {{expected ')'}} expected-note 2 {{to match this '('}} expected-note {{in instantiation of function template specialization 'tmain<int, char, -1>' requested here}} 44 #pragma omp parallel redef_num_threads (argc, argc) 45 foo(); 46 47 return tmain<int, char, 3>(argc, argv); // expected-note {{in instantiation of function template specialization 'tmain<int, char, 3>' requested here}} 48 } 49
