Where/how to get the “getline” function if it is missing from stdio.h?
getline is a POSIX function, and Windows isn’t POSIX, so it doesn’t have some POSIX C functions available. You’ll need to roll your own. Or use one that has already been written.
getline
checking for eof in string::getline
The canonical reading loop in C++ is: while (getline(cin, str)) { } if (cin.bad()) { // IO error } else if (!cin.eof()) { // format error (not possible with getline but possible with operator>>) } else { // format error (not possible with getline but possible with operator>>) // or end of file (can’t make … Read more
getline not working properly ? What could be the reasons? [duplicate]
Since you have not posted any code. I am going to take a guess. A common problem while using getline with cin is getline does not ignore leading whitespace characters. If getline is used after cin >>, the getline() sees this newline character as leading whitespace, and it just stops reading any further. How to … Read more
getline() does not work if used after some inputs [duplicate]
Characters are extracted until either (n – 1) characters have been extracted or the delimiting character is found (which is delimiter if this parameter is specified, or ‘\n’ otherwise). The extraction also stops if the end of the file is reached in the input sequence or if an error occurs during the input operation. When … Read more
Are there alternate implementations of GNU getline interface?
I’m puzzled. I looked at the link, read the description, and this is a fine utility. But, are you saying you simply can’t rewrite this function to spec? The spec seems quite clear, Here: /* This code is public domain — Will Hartung 4/9/09 */ #include <stdio.h> #include <stdlib.h> size_t getline(char **lineptr, size_t *n, FILE … Read more
reading a line from ifstream into a string variable
Use the std::getline() from <string>. istream & getline(istream & is,std::string& str) So, for your case it would be: std::getline(read,x);
What am I not understanding about getline+strings?
The reason it’s appearing to skip the first iteration is because when you do cin >> size1; You enter a number and hit the Enter key. cin reads the integer and leaves the newline character unread on the buffer, so that when you call getline, it’s as if you immediately hit the enter key, and … Read more
c++ Read from .csv file
You can follow this answer to see many different ways to process CSV in C++. In your case, the last call to getline is actually putting the last field of the first line and then all of the remaining lines into the variable genero. This is because there is no space delimiter found up until … Read more
Going through a text file line by line in C
So many problems in so few lines. I probably forget some: argv[0] is the program name, not the first argument; if you want to read in a variable, you have to allocate its memory one never loops on feof, one loops on an IO function until it fails, feof then serves to determinate the reason … Read more
Using getline() in C++
If you’re using getline() after cin >> something, you need to flush the newline character out of the buffer in between. You can do it by using cin.ignore(). It would be something like this: string messageVar; cout << “Type your message: “; cin.ignore(); getline(cin, messageVar); This happens because the >> operator leaves a newline \n … Read more