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Hi,
I am using the following code in C to take input from user until EOF occur, but problem is this code is not working, it terminate after taking first input. Anyone can tell me whats wrong with this code. Thanks in Advance.
float input; printf("Input...
Started by itsaboutcode on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
You have to test something against EOF that no fields were read, then check for end-of-file....
N", input); printf("Input no: "); fflush(stdout); } else { if (feof(stdin)) { printf("Hit EOFEOF is just a macro with a value (usually -1).
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When programming C for the command console, what happens when you have a function that tries to use SCANF to ask user input for a CHAR variable, and the user types CTRL+Z (EOF) and hits enter?
For example:
char promptChar() { char c; printf("Enter a character...
Started by Thai-Duong Nguyen on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
EOF is also returned if a read of the macro EOF if an input failure....
From the Linux scanf(3) manpage:
"The value EOF is returned if the end of input is reached before either the first successful conversion or a matching failure occurs.
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I'm doing a hw assignment and my professor uses this code to test our program:
int main() { const int SZ1 = 10; const int SZ2 = 7; const int SZ3 = 5; float array1[SZ1]; float array2[SZ2]; float array3[SZ3]; DisplayValues(SortValues(GetValues(array1, SZ...
Started by Crystal on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Scanf will return EOF to tell you what it has found, but the EOF won't leave the buffer, so the next....
Scanf will read in the EOF, before it can acquire the next float it wants.
The problem is with using EOF as your delimiter.
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Ask your Facebook Friends
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When allocating Strings on the heap (with 'malloc'),
and initializing them with the standard input (using 'fgets),
an unnecessary newline appears between them when trying to print them (with 'printf' and %s formatting).
for example:
main() { char *heap...
Started by oho-ohohohoho. on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
Reading stops after an
EOF.
Characters from stream and stores them into the buffer pointed to by s .
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On Sat, 17 Oct 2009 02:57:57 +0200, pointer <ppokazivac@gmail.com
This is a program that collcects input and saves it formated nicely.
The limit for input is 10 lines.
When input is more than 10 lines long, message prints and program exits...
Now...
Started by pointer on
, 6 posts
by 5 people.
Answer Snippets (Read the full thread at omgili):
EOF) {
puts("rc equals EOF");
}
} while (rc == 1 && ++count_line != MAXLINE);
if (count_line == MAXLINE) {
printf("Sorry, %u lines is a limit!\n", count_line);
}
printf....
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On Fri, 8 May 2009 00:26:38 -0700 (PDT), Matrixinline <anup.kataria@gmail.com
Hi All,
Can I read or write data after I encounter EOF in a file. I tried the
below code to write to a file it did not throw any error.
FILE *fFile = fopen(sFilePath...
Started by Matrixinline on
, 15 posts
by 10 people.
Answer Snippets (Read the full thread at omgili):
)) != EOF) {
j++;
}
printf("\rtime A: %d characters\ntime B: %d characters\n", i, j);
return 0:
When a function returns EOF, it means it couldn't read any more data
- so that's going to stop because EOF is encountered....
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גילוי נאות: התלבטתי רבות אם לפתוח את האשכול בפורום תכנות או בפורום זה, והחלטתי בסוף שזו בעיה במערכת ההפעלה ולא בשפה
ולכן אתייעץ אתכם :-)
אני לומד לתכנת בשפת C בסביבת העבודה של Microsoft Visual C++ Express '10
ואני לא מצליח לדמות שליחה של EOF בתוכניות ...
Started by multicore on
, 6 posts
by 3 people.
Answer Snippets (Read the full thread at hwzone):
!= '\t')
++length[j];
if (c == EOF) break;
}
}
for (k = 0; k <= 20; k++)
printf("Word %d : %d;
for (j = 0; j <= 20; ++j) {
while ((c = getchar()) != EOF) {
if (c != ' ' || c != '\n' || c", k+1, length[k]);
printf....
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Zitieren 10. Mai 2012 19:11 Hallo liebe C - Programmiere,
ich drehe hier fast durch. Ich wollte eigentlich nur kurz ein Programm schreiben, welches leider nach der ersten Eingabe nie weiter ging. Als ich dem Problem auf den Grund gehen wollte, habe ich...
Answer Snippets (Read the full thread at ubuntuusers):
Du musst in jedem Durchlauf natürlich auch deine „ sscanf() “ oder ähnlich loslassen, wenn es sein... .
EOF wirst du im String aber nicht finden.
Überprüfe einfach immer nach EOF seperat, dann.
Vorne, da ja JEDER Buchstabe größer als Null ist.
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Printf 和scanf函数是C语言中最常用的输入出函数，从学习C语言开始，就开始使用这两个函数，然而当写用C语言写单片机程序时却不能使用这两个函数，总觉得单片机的C语言和一般的C语言差别很大，写起来不大方便；其实，单片机的C语言也是标准C语言上扩展或是改动的，都支持格式化输入输出函数（printf 和scanf）；事实上，printf，scanf只负责格式化输入输出的字符，至于从哪儿输入，输出到哪儿，他们分别依靠getchar和putchar函数，只要实现单片机上的getchar函数和putchar函数...
Started by fjq_cxx on
, 2 posts
by 2 people.
Answer Snippets (Read the full thread at eefocus):
如此详细，顶个先~~~.
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之前也看到另外一位大神这样说过,说是他们公司禁用cin、cout、fstream,今天又在一个帖子里看到赵老师这样说,请问这是为什么啊?----话说我也觉得后者用起来比较方便,但又感觉不只是方便的原因.
Started by pengjialaosan on
, 96 posts
by 49 people.
Answer Snippets (Read the full thread at csdn):
++ ; } else { // EOF==k break ; } } printf( " End.\n " ); } // k,v,n=1,123,3 // k,v,n=0,123,3 // k,v,n不如C标准io直观，易用性上没优势
效率上100个人用iostream 99个人效率低下，恐怕只有1楼大神能用出更高的效率
要说优点就是类型安全性吧，主要在格式化io这里 scanf、printf, cout/cin不行。
2，FILE可以使用格式化输入输出....
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