Seth,
Based on your question, I am going to guess that you are not
familiar with C, but are familiar with an object-oriented language (e.g. lisp)
or a stream language (basic). If you will be using C or C++, I recommend
reading a copy of
The C Programming Language by Kerninghan and Ritchie
ISBN 0-13-110362-8
The C++ Programming Language by Stroustrop
???
C++ IOStreams Handbook by Steve Teale
ISBN 0-201-59641-5
C has no intrinsic i/o, but depends on functions provided in
standard libraries to read files. These books will provide the concepts
necessary.
In the meantime, I enclose an example program in C and the same
program in C++.
---- to use copy.c ----
1. Copy the program below into files named copy.c.
2. Type "gcc -o copy copy.c" to compile the program.
3. Type "cp copy.c copy.in" to create sample input.
4. Type "./copy" to execute the program.
5. Type "cat copy.out" to view the result.
---- to use copy.c ----
---- copy.c ----
/*
* Project: C Programming
* File: Trivial file example
* Copy a file from input to output
* Author: Dr. Robert J. Meier
* History: 95-10-24 -rjm- file creation
*/
/* io functions defined in the standard library are declared in stdio.h */
#include <stdio.h> /* FILE */
/* Nominal c programs are executed by evaluating the special function, main */
main() {
/* Create a data structure for the input and output file */
FILE *in = fopen("copy.in", "r");
FILE *out = fopen("copy.out", "w");
/* Report an error if the files cannot be openned */
if (!in) {
perror("Unable to read copy.in");
} else if (!out) {
perror("Unable to write copy.out");
} else {
/* If everything is ready copy each character in a loop until EOF */
int c;
for (; EOF != (c = fgetc(in)); fputc(c, out));
}
/* Reclaim memory space from the file data structures */
fclose(in);
fclose(out);
return 0;
}
---- copy.c ----
---- to use copy.C ----
1. Copy the program below into files named copy.C.
2. Type "g++ -o copy copy.C" to compile the program.
3. Type "cp copy.C copy.in" to create sample input.
4. Type "./copy" to execute the program.
5. Type "cat copy.out" to view the result.
---- to use copy.C ----
---- copy.C ----
// Project: C++ Programming
// File: Trivial file example
// Copy a file from input to output
// Author: Dr. Robert J. Meier
// History: 95-10-24 -rjm- file creation
// 97-03-24 -rjm- converted to c++
// io classes defined in the standard library are declared in streamio.h
#include <fstream.h> // ifstream
// Nominal c++ programs are executed by evaluating the special function, main
main() {
// Open the input and output streams
ifstream in("copy.in");
ofstream out("copy.out");
// Report an error if the files cannot be openned
if (!in) {
cerr << "Unable to read copy.in" << endl;
} else if (!out) {
cerr << "Unable to read copy.out" << endl;
} else {
// If everything is ready copy each character in a loop until EOF
for (char c; c = in.get(), !in.eof(); out << c);
}
return 0;
}
---- copy.C ----
With life on loan from God,
--
Robert Meier
FANUC Robotics North America, Inc. Internet: [EMAIL PROTECTED]
Voice: 1-810-377-7469 Fax: 1-810-377-7363
