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GETC(3) BSD Library Functions Manual GETC(3) NAME fgetc, getc, getchar, getw -- get next character or word from input stream LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <stdio.h> int fgetc(FILE *stream); int getc(FILE *stream); int getchar(); int getw(FILE *stream); DESCRIPTION The fgetc() function obtains the next input character (if present) from the stream pointed at by stream, or the next character pushed back on the stream via ungetc(3). The getc() function acts essentially identically to fgetc(), but is a macro that expands in-line. The getchar() function is equivalent to getc(stdin). The getw() function obtains the next int (if present) from the stream pointed at by stream. RETURN VALUES If successful, these routines return the next requested object from the stream. Character values are returned as an unsigned char converted to an int. If the stream is at end-of-file or a read error occurs, the rou- tines return EOF. The routines feof(3) and ferror(3) must be used to distinguish between end-of-file and error. If an error occurs, the global variable errno is set to indicate the error. The end-of-file con- dition is remembered, even on a terminal, and all subsequent attempts to read will return EOF until the condition is cleared with clearerr(3). SEE ALSO ferror(3), fopen(3), fread(3), getwc(3), putc(3), ungetc(3) STANDARDS The fgetc(), getc() and getchar() functions conform to ISO/IEC 9899:1990 ("ISO C90"). BUGS Since EOF is a valid integer value, feof(3) and ferror(3) must be used to check for failure after calling getw(). The size and byte order of an int varies from one machine to another, and getw() is not recommended for portable applications. BSD June 4, 1993 BSD
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | SEE ALSO | STANDARDS | BUGS
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