2010-05-12 03:42:16 +08:00
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// -*- C++ -*-
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2021-11-18 05:25:01 +08:00
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//===----------------------------------------------------------------------===//
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2010-05-12 03:42:16 +08:00
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//
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2019-01-19 18:56:40 +08:00
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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2010-05-12 03:42:16 +08:00
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_CSTDIO
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#define _LIBCPP_CSTDIO
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/*
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cstdio synopsis
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Macros:
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BUFSIZ
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EOF
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FILENAME_MAX
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FOPEN_MAX
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L_tmpnam
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NULL
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SEEK_CUR
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SEEK_END
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SEEK_SET
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TMP_MAX
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_IOFBF
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_IOLBF
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_IONBF
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stderr
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stdin
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stdout
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namespace std
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{
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Types:
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FILE
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fpos_t
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size_t
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int remove(const char* filename);
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int rename(const char* old, const char* new);
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FILE* tmpfile(void);
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char* tmpnam(char* s);
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int fclose(FILE* stream);
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int fflush(FILE* stream);
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FILE* fopen(const char* restrict filename, const char* restrict mode);
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FILE* freopen(const char* restrict filename, const char * restrict mode,
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FILE * restrict stream);
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void setbuf(FILE* restrict stream, char* restrict buf);
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int setvbuf(FILE* restrict stream, char* restrict buf, int mode, size_t size);
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int fprintf(FILE* restrict stream, const char* restrict format, ...);
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int fscanf(FILE* restrict stream, const char * restrict format, ...);
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int printf(const char* restrict format, ...);
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int scanf(const char* restrict format, ...);
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int snprintf(char* restrict s, size_t n, const char* restrict format, ...); // C99
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int sprintf(char* restrict s, const char* restrict format, ...);
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int sscanf(const char* restrict s, const char* restrict format, ...);
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int vfprintf(FILE* restrict stream, const char* restrict format, va_list arg);
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int vfscanf(FILE* restrict stream, const char* restrict format, va_list arg); // C99
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int vprintf(const char* restrict format, va_list arg);
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int vscanf(const char* restrict format, va_list arg); // C99
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int vsnprintf(char* restrict s, size_t n, const char* restrict format, // C99
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va_list arg);
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int vsprintf(char* restrict s, const char* restrict format, va_list arg);
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int vsscanf(const char* restrict s, const char* restrict format, va_list arg); // C99
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int fgetc(FILE* stream);
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char* fgets(char* restrict s, int n, FILE* restrict stream);
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int fputc(int c, FILE* stream);
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int fputs(const char* restrict s, FILE* restrict stream);
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int getc(FILE* stream);
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int getchar(void);
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2013-10-13 03:09:47 +08:00
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char* gets(char* s); // removed in C++14
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2010-05-12 03:42:16 +08:00
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int putc(int c, FILE* stream);
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int putchar(int c);
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int puts(const char* s);
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int ungetc(int c, FILE* stream);
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size_t fread(void* restrict ptr, size_t size, size_t nmemb,
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FILE* restrict stream);
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size_t fwrite(const void* restrict ptr, size_t size, size_t nmemb,
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FILE* restrict stream);
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int fgetpos(FILE* restrict stream, fpos_t* restrict pos);
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int fseek(FILE* stream, long offset, int whence);
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int fsetpos(FILE*stream, const fpos_t* pos);
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long ftell(FILE* stream);
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void rewind(FILE* stream);
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void clearerr(FILE* stream);
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int feof(FILE* stream);
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int ferror(FILE* stream);
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void perror(const char* s);
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} // std
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*/
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2022-03-26 00:55:36 +08:00
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#include <__assert> // all public C++ headers provide the assertion handler
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2010-05-12 03:42:16 +08:00
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#include <__config>
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#include <stdio.h>
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2011-10-18 04:05:10 +08:00
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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2022-02-02 09:16:40 +08:00
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# pragma GCC system_header
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2011-10-18 04:05:10 +08:00
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#endif
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2010-05-12 03:42:16 +08:00
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_LIBCPP_BEGIN_NAMESPACE_STD
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[libc++] Use the using_if_exists attribute when provided
As discussed on cfe-dev [1], use the using_if_exists Clang attribute when
the compiler supports it. This makes it easier to port libc++ on top of
new platforms that don't fully support the C Standard library.
Previously, libc++ would fail to build when trying to import a missing
declaration in a <cXXXX> header. With the attribute, the declaration will
simply not be imported into namespace std, and hence it won't be available
for libc++ to use. In many cases, the declarations were *not* actually
required for libc++ to work (they were only surfaced for users to use
them as std::XXXX), so not importing them into namespace std is acceptable.
The same thing could be achieved by conscious usage of `#ifdef` along
with platform detection, however that quickly creates a maintenance
problem as libc++ is ported to new platforms. Furthermore, this problem
is exacerbated when mixed with vendor internal-only platforms, which can
lead to difficulties maintaining a downstream fork of the library.
For the time being, we only use the using_if_exists attribute when it
is supported. At some point in the future, we will start removing #ifdef
paths that are unnecessary when the attribute is supported, and folks
who need those #ifdef paths will be required to use a compiler that
supports the attribute.
[1]: http://lists.llvm.org/pipermail/cfe-dev/2020-June/066038.html
Differential Revision: https://reviews.llvm.org/D90257
2021-06-02 22:41:37 +08:00
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using ::FILE _LIBCPP_USING_IF_EXISTS;
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using ::fpos_t _LIBCPP_USING_IF_EXISTS;
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using ::size_t _LIBCPP_USING_IF_EXISTS;
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using ::fclose _LIBCPP_USING_IF_EXISTS;
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using ::fflush _LIBCPP_USING_IF_EXISTS;
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using ::setbuf _LIBCPP_USING_IF_EXISTS;
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using ::setvbuf _LIBCPP_USING_IF_EXISTS;
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using ::fprintf _LIBCPP_USING_IF_EXISTS;
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using ::fscanf _LIBCPP_USING_IF_EXISTS;
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using ::snprintf _LIBCPP_USING_IF_EXISTS;
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using ::sprintf _LIBCPP_USING_IF_EXISTS;
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using ::sscanf _LIBCPP_USING_IF_EXISTS;
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using ::vfprintf _LIBCPP_USING_IF_EXISTS;
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using ::vfscanf _LIBCPP_USING_IF_EXISTS;
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using ::vsscanf _LIBCPP_USING_IF_EXISTS;
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using ::vsnprintf _LIBCPP_USING_IF_EXISTS;
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using ::vsprintf _LIBCPP_USING_IF_EXISTS;
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using ::fgetc _LIBCPP_USING_IF_EXISTS;
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using ::fgets _LIBCPP_USING_IF_EXISTS;
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using ::fputc _LIBCPP_USING_IF_EXISTS;
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using ::fputs _LIBCPP_USING_IF_EXISTS;
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using ::getc _LIBCPP_USING_IF_EXISTS;
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using ::putc _LIBCPP_USING_IF_EXISTS;
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using ::ungetc _LIBCPP_USING_IF_EXISTS;
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using ::fread _LIBCPP_USING_IF_EXISTS;
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using ::fwrite _LIBCPP_USING_IF_EXISTS;
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2020-03-13 02:16:30 +08:00
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#ifndef _LIBCPP_HAS_NO_FGETPOS_FSETPOS
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[libc++] Use the using_if_exists attribute when provided
As discussed on cfe-dev [1], use the using_if_exists Clang attribute when
the compiler supports it. This makes it easier to port libc++ on top of
new platforms that don't fully support the C Standard library.
Previously, libc++ would fail to build when trying to import a missing
declaration in a <cXXXX> header. With the attribute, the declaration will
simply not be imported into namespace std, and hence it won't be available
for libc++ to use. In many cases, the declarations were *not* actually
required for libc++ to work (they were only surfaced for users to use
them as std::XXXX), so not importing them into namespace std is acceptable.
The same thing could be achieved by conscious usage of `#ifdef` along
with platform detection, however that quickly creates a maintenance
problem as libc++ is ported to new platforms. Furthermore, this problem
is exacerbated when mixed with vendor internal-only platforms, which can
lead to difficulties maintaining a downstream fork of the library.
For the time being, we only use the using_if_exists attribute when it
is supported. At some point in the future, we will start removing #ifdef
paths that are unnecessary when the attribute is supported, and folks
who need those #ifdef paths will be required to use a compiler that
supports the attribute.
[1]: http://lists.llvm.org/pipermail/cfe-dev/2020-June/066038.html
Differential Revision: https://reviews.llvm.org/D90257
2021-06-02 22:41:37 +08:00
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using ::fgetpos _LIBCPP_USING_IF_EXISTS;
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2020-03-13 02:16:30 +08:00
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#endif
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[libc++] Use the using_if_exists attribute when provided
As discussed on cfe-dev [1], use the using_if_exists Clang attribute when
the compiler supports it. This makes it easier to port libc++ on top of
new platforms that don't fully support the C Standard library.
Previously, libc++ would fail to build when trying to import a missing
declaration in a <cXXXX> header. With the attribute, the declaration will
simply not be imported into namespace std, and hence it won't be available
for libc++ to use. In many cases, the declarations were *not* actually
required for libc++ to work (they were only surfaced for users to use
them as std::XXXX), so not importing them into namespace std is acceptable.
The same thing could be achieved by conscious usage of `#ifdef` along
with platform detection, however that quickly creates a maintenance
problem as libc++ is ported to new platforms. Furthermore, this problem
is exacerbated when mixed with vendor internal-only platforms, which can
lead to difficulties maintaining a downstream fork of the library.
For the time being, we only use the using_if_exists attribute when it
is supported. At some point in the future, we will start removing #ifdef
paths that are unnecessary when the attribute is supported, and folks
who need those #ifdef paths will be required to use a compiler that
supports the attribute.
[1]: http://lists.llvm.org/pipermail/cfe-dev/2020-June/066038.html
Differential Revision: https://reviews.llvm.org/D90257
2021-06-02 22:41:37 +08:00
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using ::fseek _LIBCPP_USING_IF_EXISTS;
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2020-03-13 02:16:30 +08:00
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#ifndef _LIBCPP_HAS_NO_FGETPOS_FSETPOS
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[libc++] Use the using_if_exists attribute when provided
As discussed on cfe-dev [1], use the using_if_exists Clang attribute when
the compiler supports it. This makes it easier to port libc++ on top of
new platforms that don't fully support the C Standard library.
Previously, libc++ would fail to build when trying to import a missing
declaration in a <cXXXX> header. With the attribute, the declaration will
simply not be imported into namespace std, and hence it won't be available
for libc++ to use. In many cases, the declarations were *not* actually
required for libc++ to work (they were only surfaced for users to use
them as std::XXXX), so not importing them into namespace std is acceptable.
The same thing could be achieved by conscious usage of `#ifdef` along
with platform detection, however that quickly creates a maintenance
problem as libc++ is ported to new platforms. Furthermore, this problem
is exacerbated when mixed with vendor internal-only platforms, which can
lead to difficulties maintaining a downstream fork of the library.
For the time being, we only use the using_if_exists attribute when it
is supported. At some point in the future, we will start removing #ifdef
paths that are unnecessary when the attribute is supported, and folks
who need those #ifdef paths will be required to use a compiler that
supports the attribute.
[1]: http://lists.llvm.org/pipermail/cfe-dev/2020-June/066038.html
Differential Revision: https://reviews.llvm.org/D90257
2021-06-02 22:41:37 +08:00
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using ::fsetpos _LIBCPP_USING_IF_EXISTS;
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2020-03-13 02:16:30 +08:00
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#endif
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[libc++] Use the using_if_exists attribute when provided
As discussed on cfe-dev [1], use the using_if_exists Clang attribute when
the compiler supports it. This makes it easier to port libc++ on top of
new platforms that don't fully support the C Standard library.
Previously, libc++ would fail to build when trying to import a missing
declaration in a <cXXXX> header. With the attribute, the declaration will
simply not be imported into namespace std, and hence it won't be available
for libc++ to use. In many cases, the declarations were *not* actually
required for libc++ to work (they were only surfaced for users to use
them as std::XXXX), so not importing them into namespace std is acceptable.
The same thing could be achieved by conscious usage of `#ifdef` along
with platform detection, however that quickly creates a maintenance
problem as libc++ is ported to new platforms. Furthermore, this problem
is exacerbated when mixed with vendor internal-only platforms, which can
lead to difficulties maintaining a downstream fork of the library.
For the time being, we only use the using_if_exists attribute when it
is supported. At some point in the future, we will start removing #ifdef
paths that are unnecessary when the attribute is supported, and folks
who need those #ifdef paths will be required to use a compiler that
supports the attribute.
[1]: http://lists.llvm.org/pipermail/cfe-dev/2020-June/066038.html
Differential Revision: https://reviews.llvm.org/D90257
2021-06-02 22:41:37 +08:00
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using ::ftell _LIBCPP_USING_IF_EXISTS;
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using ::rewind _LIBCPP_USING_IF_EXISTS;
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using ::clearerr _LIBCPP_USING_IF_EXISTS;
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using ::feof _LIBCPP_USING_IF_EXISTS;
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using ::ferror _LIBCPP_USING_IF_EXISTS;
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using ::perror _LIBCPP_USING_IF_EXISTS;
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2010-05-12 03:42:16 +08:00
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[libc++] Use the using_if_exists attribute when provided
As discussed on cfe-dev [1], use the using_if_exists Clang attribute when
the compiler supports it. This makes it easier to port libc++ on top of
new platforms that don't fully support the C Standard library.
Previously, libc++ would fail to build when trying to import a missing
declaration in a <cXXXX> header. With the attribute, the declaration will
simply not be imported into namespace std, and hence it won't be available
for libc++ to use. In many cases, the declarations were *not* actually
required for libc++ to work (they were only surfaced for users to use
them as std::XXXX), so not importing them into namespace std is acceptable.
The same thing could be achieved by conscious usage of `#ifdef` along
with platform detection, however that quickly creates a maintenance
problem as libc++ is ported to new platforms. Furthermore, this problem
is exacerbated when mixed with vendor internal-only platforms, which can
lead to difficulties maintaining a downstream fork of the library.
For the time being, we only use the using_if_exists attribute when it
is supported. At some point in the future, we will start removing #ifdef
paths that are unnecessary when the attribute is supported, and folks
who need those #ifdef paths will be required to use a compiler that
supports the attribute.
[1]: http://lists.llvm.org/pipermail/cfe-dev/2020-June/066038.html
Differential Revision: https://reviews.llvm.org/D90257
2021-06-02 22:41:37 +08:00
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using ::fopen _LIBCPP_USING_IF_EXISTS;
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using ::freopen _LIBCPP_USING_IF_EXISTS;
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using ::remove _LIBCPP_USING_IF_EXISTS;
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using ::rename _LIBCPP_USING_IF_EXISTS;
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using ::tmpfile _LIBCPP_USING_IF_EXISTS;
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using ::tmpnam _LIBCPP_USING_IF_EXISTS;
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2015-03-26 22:35:46 +08:00
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[libc++] Use the using_if_exists attribute when provided
As discussed on cfe-dev [1], use the using_if_exists Clang attribute when
the compiler supports it. This makes it easier to port libc++ on top of
new platforms that don't fully support the C Standard library.
Previously, libc++ would fail to build when trying to import a missing
declaration in a <cXXXX> header. With the attribute, the declaration will
simply not be imported into namespace std, and hence it won't be available
for libc++ to use. In many cases, the declarations were *not* actually
required for libc++ to work (they were only surfaced for users to use
them as std::XXXX), so not importing them into namespace std is acceptable.
The same thing could be achieved by conscious usage of `#ifdef` along
with platform detection, however that quickly creates a maintenance
problem as libc++ is ported to new platforms. Furthermore, this problem
is exacerbated when mixed with vendor internal-only platforms, which can
lead to difficulties maintaining a downstream fork of the library.
For the time being, we only use the using_if_exists attribute when it
is supported. At some point in the future, we will start removing #ifdef
paths that are unnecessary when the attribute is supported, and folks
who need those #ifdef paths will be required to use a compiler that
supports the attribute.
[1]: http://lists.llvm.org/pipermail/cfe-dev/2020-June/066038.html
Differential Revision: https://reviews.llvm.org/D90257
2021-06-02 22:41:37 +08:00
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using ::getchar _LIBCPP_USING_IF_EXISTS;
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2019-09-08 06:18:20 +08:00
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#if _LIBCPP_STD_VER <= 11 && !defined(_LIBCPP_C_HAS_NO_GETS)
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[libc++] Use the using_if_exists attribute when provided
As discussed on cfe-dev [1], use the using_if_exists Clang attribute when
the compiler supports it. This makes it easier to port libc++ on top of
new platforms that don't fully support the C Standard library.
Previously, libc++ would fail to build when trying to import a missing
declaration in a <cXXXX> header. With the attribute, the declaration will
simply not be imported into namespace std, and hence it won't be available
for libc++ to use. In many cases, the declarations were *not* actually
required for libc++ to work (they were only surfaced for users to use
them as std::XXXX), so not importing them into namespace std is acceptable.
The same thing could be achieved by conscious usage of `#ifdef` along
with platform detection, however that quickly creates a maintenance
problem as libc++ is ported to new platforms. Furthermore, this problem
is exacerbated when mixed with vendor internal-only platforms, which can
lead to difficulties maintaining a downstream fork of the library.
For the time being, we only use the using_if_exists attribute when it
is supported. At some point in the future, we will start removing #ifdef
paths that are unnecessary when the attribute is supported, and folks
who need those #ifdef paths will be required to use a compiler that
supports the attribute.
[1]: http://lists.llvm.org/pipermail/cfe-dev/2020-June/066038.html
Differential Revision: https://reviews.llvm.org/D90257
2021-06-02 22:41:37 +08:00
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using ::gets _LIBCPP_USING_IF_EXISTS;
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2015-03-26 22:35:46 +08:00
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#endif
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[libc++] Use the using_if_exists attribute when provided
As discussed on cfe-dev [1], use the using_if_exists Clang attribute when
the compiler supports it. This makes it easier to port libc++ on top of
new platforms that don't fully support the C Standard library.
Previously, libc++ would fail to build when trying to import a missing
declaration in a <cXXXX> header. With the attribute, the declaration will
simply not be imported into namespace std, and hence it won't be available
for libc++ to use. In many cases, the declarations were *not* actually
required for libc++ to work (they were only surfaced for users to use
them as std::XXXX), so not importing them into namespace std is acceptable.
The same thing could be achieved by conscious usage of `#ifdef` along
with platform detection, however that quickly creates a maintenance
problem as libc++ is ported to new platforms. Furthermore, this problem
is exacerbated when mixed with vendor internal-only platforms, which can
lead to difficulties maintaining a downstream fork of the library.
For the time being, we only use the using_if_exists attribute when it
is supported. At some point in the future, we will start removing #ifdef
paths that are unnecessary when the attribute is supported, and folks
who need those #ifdef paths will be required to use a compiler that
supports the attribute.
[1]: http://lists.llvm.org/pipermail/cfe-dev/2020-June/066038.html
Differential Revision: https://reviews.llvm.org/D90257
2021-06-02 22:41:37 +08:00
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using ::scanf _LIBCPP_USING_IF_EXISTS;
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using ::vscanf _LIBCPP_USING_IF_EXISTS;
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2015-03-26 22:35:46 +08:00
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[libc++] Use the using_if_exists attribute when provided
As discussed on cfe-dev [1], use the using_if_exists Clang attribute when
the compiler supports it. This makes it easier to port libc++ on top of
new platforms that don't fully support the C Standard library.
Previously, libc++ would fail to build when trying to import a missing
declaration in a <cXXXX> header. With the attribute, the declaration will
simply not be imported into namespace std, and hence it won't be available
for libc++ to use. In many cases, the declarations were *not* actually
required for libc++ to work (they were only surfaced for users to use
them as std::XXXX), so not importing them into namespace std is acceptable.
The same thing could be achieved by conscious usage of `#ifdef` along
with platform detection, however that quickly creates a maintenance
problem as libc++ is ported to new platforms. Furthermore, this problem
is exacerbated when mixed with vendor internal-only platforms, which can
lead to difficulties maintaining a downstream fork of the library.
For the time being, we only use the using_if_exists attribute when it
is supported. At some point in the future, we will start removing #ifdef
paths that are unnecessary when the attribute is supported, and folks
who need those #ifdef paths will be required to use a compiler that
supports the attribute.
[1]: http://lists.llvm.org/pipermail/cfe-dev/2020-June/066038.html
Differential Revision: https://reviews.llvm.org/D90257
2021-06-02 22:41:37 +08:00
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using ::printf _LIBCPP_USING_IF_EXISTS;
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using ::putchar _LIBCPP_USING_IF_EXISTS;
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using ::puts _LIBCPP_USING_IF_EXISTS;
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using ::vprintf _LIBCPP_USING_IF_EXISTS;
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2015-03-26 22:35:46 +08:00
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2010-05-12 03:42:16 +08:00
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_LIBCPP_END_NAMESPACE_STD
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2021-04-21 00:03:32 +08:00
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#endif // _LIBCPP_CSTDIO
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