基本介紹
- 中文名：cstdio
- 別稱：C語言
- 所屬：標準C++
- 類別：計算機
使用方法,頭檔案內容,
使用方法
stdio.h是以往的C和C++的頭檔案，cstdio是標準C++（STL），且cstdio中的函式都是定義在一個名稱空間std裡面的，如果要調用這個名字空間的函式，必須得加std::或者在檔案中聲明using namespace std。
#include<cstdio>using namespace std;/*你也可以同時加上這個語句*/
頭檔案內容
// -*- C++ -*- forwarding header.// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003// Free Software Foundation, Inc.//// This file is part of the GNU ISO C++ Library. This library is free// software; you can redistribute it and/or modify it under the// terms of the GNU General Public License as published by the// Free Software Foundation; either version 2, or (at your option)// any later version.// This library is distributed in the hope that it will be useful,// but WITHOUT ANY WARRANTY; without even the implied warranty of// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the// GNU General Public License for more details.// You should have received a copy of the GNU General Public License along// with this library; see the file COPYING. If not, write to the Free// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,// USA.// As a special exception, you may use this file as part of a free software// library without restriction. Specifically, if other files instantiate// templates or use macros or inline functions from this file, or you compile// this file and link it with other files to produce an executable, this// file does not by itself cause the resulting executable to be covered by// the GNU General Public License. This exception does not however// invalidate any other reasons why the executable file might be covered by// the GNU General Public License.//// ISO C++ 14882: 27.8.2 C Library files///** @file cstdio * This is a Standard C++ Library file. You should @c #include this file * in your programs, rather than any of the "*.h" implementation files. * * This is the C++ version of the Standard C Library header @cstdio.h, * and its contents are (mostly) the same as that header, but are all * contained in the namespace @cstd. */#ifndef _GLIBCXX_CSTDIO#define _GLIBCXX_CSTDIO 1#pragma GCC system_header#include <bits/c++config.h>#include <cstddef>#include <stdio.h>// Get rid of those macros defined in <stdio.h> in lieu of real functions.#undef clearerr#undef fclose#undef feof#undef ferror#undef fflush#undef fgetc#undef fgetpos#undef fgets#undef fopen#undef fprintf#undef fputc#undef fputs#undef fread#undef freopen#undef fscanf#undef fseek#undef fsetpos#undef ftell#undef fwrite#undef getc#undef getchar#undef gets#undef perror#undef printf#undef putc#undef putchar#undef puts#undef remove#undef rename#undef rewind#undef scanf#undef setbuf#undef setvbuf#undef sprintf#undef sscanf#undef tmpfile#undef tmpnam#undef ungetc#undef vfprintf#undef vprintf#undef vsprintfnamespace std{ using ::FILE; using ::fpos_t; using ::clearerr; using ::fclose; using ::feof; using ::ferror; using ::fflush; using ::fgetc; using ::fgetpos; using ::fgets; using ::fopen; using ::fprintf; using ::fputc; using ::fputs; using ::fread; using ::freopen; using ::fscanf; using ::fseek; using ::fsetpos; using ::ftell; using ::fwrite; using ::getc; using ::getchar; using ::gets; using ::perror; using ::printf; using ::putc; using ::putchar; using ::puts; using ::remove; using ::rename; using ::rewind; using ::scanf; using ::setbuf; using ::setvbuf; using ::sprintf; using ::sscanf; using ::tmpfile; using ::tmpnam; using ::ungetc; using ::vfprintf; using ::vprintf; using ::vsprintf;}#if _GLIBCXX_USE_C99#undef snprintf#undef vfscanf#undef vscanf#undef vsnprintf#undef vsscanfnamespace __gnu_cxx{#if _GLIBCXX_USE_C99_CHECK || _GLIBCXX_USE_C99_DYNAMIC extern "C" int (snprintf)(char * restrict, size_t, const char * restrict, ...); extern "C" int (vfscanf)(FILE * restrict, const char * restrict, __gnuc_va_list); extern "C" int (vscanf)(const char * restrict, __gnuc_va_list); extern "C" int (vsnprintf)(char * restrict, size_t, const char * restrict, __gnuc_va_list); extern "C" int (vsscanf)(const char * restrict, const char * restrict, __gnuc_va_list);#endif#if !_GLIBCXX_USE_C99_DYNAMIC using ::snprintf; using ::vfscanf; using ::vscanf; using ::vsnprintf; using ::vsscanf;#endif}namespace std{ using __gnu_cxx::snprintf; using __gnu_cxx::vfscanf; using __gnu_cxx::vscanf; using __gnu_cxx::vsnprintf; using __gnu_cxx::vsscanf;}#endif#endif/*為了便於查看使用了全形空格" "*/此檔案來自C-Free 5 Professional
