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getc() -- STDIO Function (libc) Read character from file stream #include <stdio.h> int getc(fp) FILE *fp; getc() is a function that reads a character from the file stream fp, and returns an int. Example The following example creates a simple copy utility. It opens the first file named on the command line and copies its contents into the second file named on the command line. #include <stdio.h> void fatal(string) char *string; { printf("%s\n", string); exit (1); } main(argc, argv) int argc; char *argv[]; { int foo; FILE *source, *dest; if (--argc != 2) fatal("Usage: copy [source][destination]"); if ((source = fopen(argv[1], "r")) == NULL) fatal("Cannot open source file"); if ((dest = fopen(argv[2], "w")) == NULL) fatal("Cannot open destination file"); while ((foo = getc(source)) != EOF) putc(foo, dest); } See Also fgetc(), getchar(), libc, putc() ANSI Standard, §7.9.7.5 POSIX Standard, §8.1 Diagnostics getc() returns EOF at end of file or on read fatal. Notes Because getc() is a macro, arguments with side effects probably will not work as expected. Also, because getc() is a complex macro, its use in expressions of too great a complexity may cause unforeseen difficulties. Use of the function fgetc() may avoid this.