Difference between revisions of "FWRITE()"

Latest revision as of 08:20, 4 February 2013

Purpose

Function to write a character expression to an ASCII file

Syntax

FWRITE(<expN1>, <expC>[, <expN2>])

See Also

FCLOSE(), FCREATE(), FDATE(), FERROR(), FGETS(), FOPEN(), FPUTS(), FREAD(), FREADSTR(), FTIME(), MEMOREAD(), MEMOWRITE()

Description

The FWRITE() function writes the character expression <expC> to a specified text file. The <expN1> is the file pointer returned by either the FOPEN() or FCREATE() functions. The optional <expN2> specifies the maximum number of bytes to write from the buffer.

If an error occurs during the operation -1 is assigned to the FERROR() function. The file pointer must be assigned when the file is first opened using the FOPEN() or FCREATE() functions. FWRITE() does not include line terminators when writing to the file; this can be achieved using FPUTS().

Example

fp=fcreate("time.txt")
if ferror()=-1
    dialog box "The file could not be created."
else
    fwrite(fp,timestamp())
endif
fclose(fp)
if ferror()=-1
    dialog box "The file could not be closed."
endif