Difference between revisions of "FERROR()"
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==Purpose== | ==Purpose== | ||
Function to return the status of the last text-file operation | Function to return the status of the last text-file operation | ||
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==Products== | ==Products== | ||
| − | Recital | + | Recital Server, Recital |
[[Category:Documentation]] | [[Category:Documentation]] | ||
[[Category:Functions]] | [[Category:Functions]] | ||
[[Category:ASCII File Access]] | [[Category:ASCII File Access]] | ||
[[Category:ASCII File Access Functions]] | [[Category:ASCII File Access Functions]] | ||
Latest revision as of 17:22, 27 November 2009
Purpose
Function to return the status of the last text-file operation
Syntax
FERROR()
See Also
FCLOSE(), FCREATE(), FGETS(), FOPEN(), FPUTS(), FREADSTR(), FWRITE(), MEMOREAD(), MEMOWRITE(), TEXTEDIT()
Description
The FERROR() function returns an integer representing the status of the last text file operation. It returns –1 for failure, 0 for success. This function should always be used in conjunction with the other text file functions to check for errors.
Example
use accounts fp=fopen("existing.file") if ferror()=-1 dialog box "The file could not be opened." else string = freadstr(fp,80) do while not empty(string) ? string string = freadstr(fp,80) enddo ? fclose(fp) if ferror()=-1 dialog box "The file could not be closed." endif endif
Products
Recital Server, Recital
