I'm trying to make a function that writes a file but i'm having issues passing a string as a parameter.
void writeFile(string filename, string letters, int size)
{
ofstream outputfile("output.txt");
outputfile << letters;
outputfile.close();
}
int main()
{
string letters[] = {"u", "l", "s", "n","m", "z", "a", "p", "b"};
int size = 9;
string filename = "Inputfile.txt";
writeFile(inputfilename.c_str(),letters,size);
}
And having this error.
error: could not convert from 'std::string* {aka std::basic_string<char>*}' to 'std::string {aka std::basic_string<char>}'|
An array of string
items is passed as actual argument, where the formal argument is a single string
.
You could replace the array with a single string.
Or with a set, or whatever suits the purpose, but then you'll have to change the called function accordingly.
The error mentions std::string*
instead of an array, like std::string[9]
, because the array expression decays to an expression denoting a pointer to the first item, which it does because the array is not being bound to a reference or passed to sizeof
or anything where the expression's array nature would have to be preserved.
The problem was that
void writeFile(string filename, string letters, int size)
is expecting a string but,
string letters[] = {"u", "l", "s", "n","m", "z", "a", "p", "b"};
is an array of string, i "fixed" it by changing the function second parameter to
void writeFile(string outputFileName, string words[], int arraylength)
with "fixed" i meant that regardless of that now it does creates a file named "output.txt" but the content is not the array of string passed as a second parameter.
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