1FREAD(3S)                                                            FREAD(3S)
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NAME

6       fread, fwrite - buffered binary input/output
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SYNOPSIS

9       #include <stdio.h>
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11       fread(ptr, sizeof(*ptr), nitems, stream)
12       FILE *stream;
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14       fwrite(ptr, sizeof(*ptr), nitems, stream)
15       FILE *stream;
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DESCRIPTION

18       Fread  reads, into a block beginning at ptr, nitems of data of the type
19       of *ptr from the named input stream.  It returns the  number  of  items
20       actually read.
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22       If  stream  is stdin and the standard output is line buffered, then any
23       partial output line will be flushed before any call to read(2) to  sat‐
24       isfy the fread.
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26       Fwrite  appends at most nitems of data of the type of *ptr beginning at
27       ptr to the named output stream.  It returns the number of  items  actu‐
28       ally written.
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SEE ALSO

31       read(2),  write(2),  fopen(3S), getc(3S), putc(3S), gets(3S), puts(3S),
32       printf(3S), scanf(3S)
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DIAGNOSTICS

35       Fread and fwrite return 0 upon end of file or error.
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394th Berkeley Distribution        May 15, 1985                        FREAD(3S)