K& R2第1.5.1节 - “getchar”问题 [英] K&R2 section 1.5.1 - "getchar" problem
问题描述
我稍微修改了1.5.1节中的程序，输入frm键盘需要
，然后将其输出到终端。它只是
没有运行，我无法理解错误信息。
你能告诉我出了什么问题以及如何做到这一点吗？ br />
------------------------------ INPUT -------- -------------
#include< stdio.h>
int main（）{
int c;
while（（c = getchar（））！= EOF）
{
printf （你的输入：）;
putchar（c）;
printf（" \ n"）;
}
返回0;
}
-------------- ------- OUTPUT -----------------------------
[arch @ voodo kr2 ] $ gcc -ansi -pedantic -Wall -Wextra 151.c
151.c：1：错误：预期标识符或''（''''''''''''''' b $ b 151.c：2：12：错误：数字中的小数点太多
在/usr/include/_G_config.h:44中包含的文件中，
来自/usr/include/libio.h:32,
from /usr/include/stdio.h:72,
f rom 151.c：4：
/usr/include/gconv.h:72：错误：预期的声明说明符或
''''''''''''' size_t''
/usr/include/gconv.h:88：错误：预期声明说明符或
'''''''size_t''之前br />
/usr/include/gconv.h:97：错误：预期声明说明符或
'''''''size_t'''
/usr/include/gconv.h:174：错误：期望说明符 - 限定符列表
$'b $ b''size_t'之前'
包含在/ usr中的文件/include/stdio.h：72，
来自151.c：4：
/usr/include/libio.h:328：错误：期望说明符 - 限定符 - 清单
$'b $ b''size_t''
/usr/include/libio.h:360：错误：预期声明说明符或
'' ...''之前''size_t''
/usr/include/libio.h:369：错误：预期的声明说明符或
''......' '之前''size_t''
/ usr / i nclude / libio.h:485：错误：预期''=''，''，''，'';''，''asm''或
''__ attribute__'''之前'' '_IO_sgetn''
151.c中包含的文件：4：
/usr/include/stdio.h:306：错误：预期的声明说明符或
'b $ b'''''在''size_t''之前'
/usr/include/stdio.h:608：错误：预期''=''，''，' '''''''，''asm''或
''__ attribute__''在''fread'之前''
/usr/include/stdio.h： 614：错误：在''fwrite''之前预期''=''，''，''，'';''，''asm''或
''__ attribute__'' />
[arch @ voodo kr2] $
gcc -ansi -pedantic -Wall -Wextra 151.c
151.c：1：错误：预期的标识符或''（''''''''令牌之前
151.c：2：12：错误：也是许多小数点数
In文件包含在/usr/include/_G_config.h:44，
来自/usr/include/libio.h:32的
，
来自/ usr / include / stdio的
。 h：72，
来自151.c：4：
/usr/include/gconv.h:72：错误：预期的声明说明符或
$ b $'''''''size_t''之前'
/usr/include/gconv.h:88：错误：预期的声明说明符或
'' ...''之前''size_t''
/usr/include/gconv.h:97：错误：预期声明说明符或
''......' '之前''size_t''
/usr/include/gconv.h:174：错误：期望说明符 - 限定符列表
之前''size_t''
来自/usr/include/stdio.h:72的文件，
来自151.c：4：
/ usr / include / libio .h：328：错误：期望说明符 - 限定符列表
$'b $ b''size_t''
/usr/include/libio.h:360：错误：预期声明说明者或
'''''在''size_t''之前'''
/usr/include/libio.h:369：错误：预期的声明说明符或
'''''''size_t'''
/usr/include/libio.h:485：错误：预期''=''，''，''，'';''，''asm''或
''__ attribute__' '之前''_IO_sgetn''
包含在151.c中的文件：4：
/usr/include/stdio.h:306：错误：预期的声明说明符或
'''''之前''size_t''
/usr/include/stdio.h:608：错误：预期''=''，' '''，'';''，''asm''或
''__ attribute__''在''fread'之前''
/ usr / include / stdio .h：614：错误：在''fwrite'之前预期''=''，''，''，'';''，''asm''或
''__ attribute__'' '
[arch @ voodo kr2]
3月8日，11日：上午07点，arnuld < geek.arn ... @ gmail.comwrote：
i稍微修改了1.5.1节中的程序，这需要
输入frm键盘，然后将其打印到终端。它只是
没有运行，我无法理解错误信息。
你可以告诉我有什么问题以及如何做到这一点？
参考此链接，
http://gcc.gnu.org/ml/gcc/2005-03/msg00865.html
if它与您的配置匹配（OS +编译器+库+标题）适用
最新补丁或需要。
>
------------------------------ INPUT -------------- -------
#include< stdio.h>
int main（）{
int c ;
while（（c = getchar（））！= EOF）
{
printf（" your input： "）;
putchar（c）;
printf（" \ n"）;
}
返回0;
}
---------------- ----- OUTPUT -----------------------------
[arch @ voodo kr2]
i have slightly modified the programme from section 1.5.1 which takes
the input frm keyboard and then prints that to the terminal. it just
does not run and i am unable to understand the error message.
may you tell me what is wrong and how to make that right ?
------------------------------ INPUT ---------------------
#include <stdio.h>
int main() {
int c;
while((c = getchar()) != EOF)
{
printf("your input: ");
putchar(c);
printf("\n");
}
return 0;
}
--------------------- OUTPUT -----------------------------
[arch@voodo kr2]$ gcc -ansi -pedantic -Wall -Wextra 151.c
151.c:1: error: expected identifier or ''('' before ''/'' token
151.c:2:12: error: too many decimal points in number
In file included from /usr/include/_G_config.h:44,
from /usr/include/libio.h:32,
from /usr/include/stdio.h:72,
from 151.c:4:
/usr/include/gconv.h:72: error: expected declaration specifiers or
''...'' before ''size_t''
/usr/include/gconv.h:88: error: expected declaration specifiers or
''...'' before ''size_t''
/usr/include/gconv.h:97: error: expected declaration specifiers or
''...'' before ''size_t''
/usr/include/gconv.h:174: error: expected specifier-qualifier-list
before ''size_t''
In file included from /usr/include/stdio.h:72,
from 151.c:4:
/usr/include/libio.h:328: error: expected specifier-qualifier-list
before ''size_t''
/usr/include/libio.h:360: error: expected declaration specifiers or
''...'' before ''size_t''
/usr/include/libio.h:369: error: expected declaration specifiers or
''...'' before ''size_t''
/usr/include/libio.h:485: error: expected ''='', '','', '';'', ''asm'' or
''__attribute__'' before ''_IO_sgetn''
In file included from 151.c:4:
/usr/include/stdio.h:306: error: expected declaration specifiers or
''...'' before ''size_t''
/usr/include/stdio.h:608: error: expected ''='', '','', '';'', ''asm'' or
''__attribute__'' before ''fread''
/usr/include/stdio.h:614: error: expected ''='', '','', '';'', ''asm'' or
''__attribute__'' before ''fwrite''
[arch@voodo kr2]$
解决方案gcc -ansi -pedantic -Wall -Wextra 151.c
151.c:1: error: expected identifier or ''('' before ''/'' token
151.c:2:12: error: too many decimal points in number
In file included from /usr/include/_G_config.h:44,
from /usr/include/libio.h:32,
from /usr/include/stdio.h:72,
from 151.c:4:
/usr/include/gconv.h:72: error: expected declaration specifiers or
''...'' before ''size_t''
/usr/include/gconv.h:88: error: expected declaration specifiers or
''...'' before ''size_t''
/usr/include/gconv.h:97: error: expected declaration specifiers or
''...'' before ''size_t''
/usr/include/gconv.h:174: error: expected specifier-qualifier-list
before ''size_t''
In file included from /usr/include/stdio.h:72,
from 151.c:4:
/usr/include/libio.h:328: error: expected specifier-qualifier-list
before ''size_t''
/usr/include/libio.h:360: error: expected declaration specifiers or
''...'' before ''size_t''
/usr/include/libio.h:369: error: expected declaration specifiers or
''...'' before ''size_t''
/usr/include/libio.h:485: error: expected ''='', '','', '';'', ''asm'' or
''__attribute__'' before ''_IO_sgetn''
In file included from 151.c:4:
/usr/include/stdio.h:306: error: expected declaration specifiers or
''...'' before ''size_t''
/usr/include/stdio.h:608: error: expected ''='', '','', '';'', ''asm'' or
''__attribute__'' before ''fread''
/usr/include/stdio.h:614: error: expected ''='', '','', '';'', ''asm'' or
''__attribute__'' before ''fwrite''
[arch@voodo kr2]
On Mar 8, 11:07 am, "arnuld" <geek.arn...@gmail.comwrote:i have slightly modified the programme from section 1.5.1 which takes
the input frm keyboard and then prints that to the terminal. it just
does not run and i am unable to understand the error message.
may you tell me what is wrong and how to make that right ?refer this link,
http://gcc.gnu.org/ml/gcc/2005-03/msg00865.html
if its match with your configuration (OS+compiler+libs+headers) apply
latest patch or do needful.
>
------------------------------ INPUT ---------------------
#include <stdio.h>
int main() {
int c;
while((c = getchar()) != EOF)
{
printf("your input: ");
putchar(c);
printf("\n");
}
return 0;
}
--------------------- OUTPUT -----------------------------
[arch@voodo kr2]
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