//===-- Implementation of vscanf --------------------------------*- C++ -*-===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// #include "src/stdio/vscanf.h" #include "hdr/stdio_macros.h" #include "src/__support/OSUtil/io.h" #include "src/__support/arg_list.h" #include "src/__support/macros/config.h" #include "src/stdio/baremetal/scanf_internal.h" #include "src/stdio/scanf_core/scanf_main.h" #include namespace LIBC_NAMESPACE_DECL { LLVM_LIBC_FUNCTION(int, vscanf, (const char *__restrict format, va_list vlist)) { internal::ArgList args(vlist); // This holder class allows for easier copying // and pointer semantics, as well as handling // destruction automatically. va_end(vlist); scanf_core::StdinReader reader; int retval = scanf_core::scanf_main(&reader, format, args); // This is done to avoid including stdio.h in the internals. On most systems // EOF is -1, so this will be transformed into just "return retval". return (retval == -1) ? EOF : retval; } } // namespace LIBC_NAMESPACE_DECL