| 1 | //===-- Implementation of printf --------------------------------*- C++ -*-===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #include "src/stdio/printf.h" |
| 10 | |
| 11 | #include "src/__support/File/file.h" |
| 12 | #include "src/__support/arg_list.h" |
| 13 | #include "src/__support/macros/config.h" |
| 14 | #include "src/stdio/printf_core/vfprintf_internal.h" |
| 15 | |
| 16 | #include "hdr/types/FILE.h" |
| 17 | #include <stdarg.h> |
| 18 | |
| 19 | #ifndef LIBC_COPT_STDIO_USE_SYSTEM_FILE |
| 20 | #define PRINTF_STDOUT LIBC_NAMESPACE::stdout |
| 21 | #else // LIBC_COPT_STDIO_USE_SYSTEM_FILE |
| 22 | #define PRINTF_STDOUT ::stdout |
| 23 | #endif // LIBC_COPT_STDIO_USE_SYSTEM_FILE |
| 24 | |
| 25 | namespace LIBC_NAMESPACE_DECL { |
| 26 | |
| 27 | LLVM_LIBC_FUNCTION(int, printf, (const char *__restrict format, ...)) { |
| 28 | va_list vlist; |
| 29 | va_start(vlist, format); |
| 30 | internal::ArgList args(vlist); // This holder class allows for easier copying |
| 31 | // and pointer semantics, as well as handling |
| 32 | // destruction automatically. |
| 33 | va_end(vlist); |
| 34 | int ret_val = printf_core::vfprintf_internal( |
| 35 | reinterpret_cast<::FILE *>(PRINTF_STDOUT), format, args); |
| 36 | return ret_val; |
| 37 | } |
| 38 | |
| 39 | } // namespace LIBC_NAMESPACE_DECL |
| 40 |