1// RUN: rm -rf %t 2// RUN: %clang -fsyntax-only -isystem %S/Inputs/System/usr/include -fmodules -fmodule-cache-path %t -D__need_wint_t -Werror=implicit-function-declaration %s 3 4// Supplied by compiler, but referenced from the "/usr/include" module map. 5@__experimental_modules_import cstd.float_constants; 6 7float getFltMax() { return FLT_MAX; } 8 9// Supplied by the "/usr/include" module map. 10@__experimental_modules_import cstd.stdio; 11 12void test_fprintf(FILE *file) { 13 fprintf(file, "Hello, modules\n"); 14} 15 16// Supplied by compiler, which forwards to the "/usr/include" version. 17@__experimental_modules_import cstd.stdint; 18 19my_awesome_nonstandard_integer_type value; 20 21// Supplied by the compiler; that version wins. 22@__experimental_modules_import cstd.stdbool; 23 24#ifndef bool 25# error "bool was not defined!" 26#endif 27 28 29 30