A Function in Data File handling... C++?

Assuming that a text file named FIRST.TXT contains some text written into it,


write a function named vowelwords( ), that reads the file FIRST.TXT and creates


a new file named SECOND.TXT, to contain only those words from the file


FIRST.TXT which start with a lowercase vowel (i.e. with ‘a’, ‘e’, ‘i’, ‘o’, ‘u’). For


example if the file FIRST.TXT contains


Carry umbrella and overcoat when it rains


Then the file SECOND.TXT shall contain


umbrella and overcoat it

A Function in Data File handling... C++?
I don't know how to inhibit the Yahoo software from


left justifying every line, so the lack of indentation


will make this hard to read. The code is really "C",


but it compiles and runs just fine under a C++ compiler.


Change the "fprintf(outfile" to "outfile%26lt;%26lt;" if you prefer.





In any case, "strtok" from the ANSI C library makes


this pretty straight-forward.





#include %26lt;stdio.h%26gt;


#include %26lt;string.h%26gt;


#include %26lt;stdlib.h%26gt;





int


main(int argc, char* argv[])


{


char buff[1000], *p, *t;


FILE *in = fopen("FIRST.TXT", "r");


FILE *out = fopen("SECOND.TXT", "w+");


if (!in || !out)


perror("fopen"), exit(-1);





while (fgets(buff, sizeof(buff), in)) {


p = buff;


while (t=strtok(p, " \t")) {


p = 0;


if (*t=='a' || *t=='e' || *t=='i' || *t=='o' || *t=='u')


fprintf(out, "%s ", t);


}


fprintf(out, "\n");


}


return 0;


}