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String s; getline(cin,s); while (HOW TO WRITE IT HERE?) { inputs.push_back(s); getline(cin,s); }
Started by Jinx on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
For further explanation be
string s; while (getline(cin, s)) { inputs.push_back(s); }
string s; getline(cin,s); while (!cin.eof) { inputs.push....
The stream's state as the tested value instead: while (std::getline(stream, str)) {}.
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I'm trying to compile a pre-existing c++ package on my mac osx leopard machine, and get the following error:
error: no matching function for call to 'getline(char**, size_t*, FILE*&)'
This is probably because getline() is a GNU specific extension.
Can...
Started by Yoav on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
Http://www.cplusplus.com/reference/string/getline/
getline is defined, which now includes getline ....
I'm not sure I've ever seen that specific definition of 'getline' here is the one I know of which uses c++ streams+strings.
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Hello there,
I'm trying to collect user's input in a string variable that accepts whitespaces for a specified amount of time.
Since the usual cin >> str doesn't accept whitespaces, so I'd go with std::getline from <string>
Here is my code:...
Started by djzmo on
, 7 posts
by 7 people.
Answer Snippets (Read the full thread at stackoverflow):
I dont't have the latest g++....
Does the fact that you're dropping it on the ground .
Is this what you want? getline returns an istream reference.
Is n properly initialized from input? You don't appear to be doing anything with getline.
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Hey everyone,
I am parsing an input text file and was wondering if I am grabbing the input one line at a time using getline(). Is there a way that I can search through the string to get an integer. I was thinking something similar to getNextInt() in Java...
Started by Tomek on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
Or you could use strtol() or relatives - also on the C string representation()) { getline (inFile,inputLine....
Gt; i1 >> i2;
It's more than a little bit C-ish, but you could use sscanf() on the C string representation.
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Firstly, I'm pretty new to C++. I believe that getline() isn't a standard C function, so #define _GNU_SOURCE is required to use it. I'm now using C++ and g++ tells me that _GNU_SOURCE is already defined:
$ g++ -Wall -Werror parser.cpp parser.cpp:1:1: ...
Started by Ray2k on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
At least that's the case with....
This is supported by your was.
String s = cin.getline() char c; cin.getchar(&c);
I think g++, from version 3, automagically defines _GNU_SOURCE .
I usually run in *nix so I usually use gcc and g++ as well .
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Hi, how do I check for end-of-file using the string::getline function? Coz, using .eof() is not recommended as it wont signal eof until I attempt to read beyond eof.
Started by assassin on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Just read and then check that the read operation succeeded:
std::getline(std::cin, str); if(!std use the eof member function to see it what happened was actually EOF:
std::getline(std::cin, str\n"; }
getline returns the stream so ....
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In C++, you can use non-member getline() with a stream in a loop like this:
#include <string> #include <fstream> #include <cstdlib> using namespace std; int main() { ifstream in("file.txt"); if (!in) { return EXIT_FAILURE; } for (string...
Started by Shadow2531 on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Assuming you have to use native C FILE * , I would do it this way:
#include <cstdio> #include.
Conversion appropriate for the platform is performed automatically by the C stdio functions in text mode.
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The experiment I am currently working uses a software base with a complicated source history and no well defined license. It would be a considerable amount of work to rationalize things and release under a fixed license.
It is also intended to run a a...
Started by dmckee on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
Will Hartung 4/9/09 */ #include <stdio.h> #include <stdlib.h> size_t getline(char **lineptr, size_t *n, FILE *stream) { char *bufptr = NULL; char *p = bufptr; size_t size; int c; if (lineptr = *lineptr; size = *n; c....
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I am trying to read a csv using get line to extract three variables separated by commas. Name, Course, and Grade.
I am reading in the first line fine but it puts in weird new line breaks and sends the format into a cluster.
Here is my code :
#include ...
Started by Mike on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
If you do std::string a, b, c = "something....
You should check the return value of your getline had to do that, then you should have written
std::string a = "", b = "", c = ""; .
That only checks the EOF after it has already happened .
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Basically this program searches a .txt file for a word and if it finds it, it prints the line and the line number. Here is what I have so far.
Code:
#include "std_lib_facilities.h" int main() { string findword; cout << "Enter word to search for....
Started by trikker on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
Otherwise, let ist take care like the following :
while(ist >>... .
Make sure there are no spaces around the names in your text file .
Don't know enough C++ to help you with the details .
You could use a regular expression to find the word in the line .
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