使用Ufun的CFI函数直接判断文件夹和文件等操作

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在进行相关文件和文件路径判断时候，ufun提供了内置的方法。
* ?  y$ F0 }# k7 g+ gUC4560 通过设置第二个 参数为 100 可以判断文件夹，通过设置 为 0 可以查找文件。
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uc4560 (view source)

3 j% ?; i# h# G6 FDefined in: uf_cfi.h
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Checks whether the specified file of the given type exists.
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! R' c/ L' t. k& e, \# GNOTE: Mixed or upper case file names may not be found if the
1 ]8 M$ o) i4 ^# b" ?5 k+ b5 @& Genvironment variable UGII_OPTION = LOWER is set.

/ B4 N2 O* Q/ L0 y7 ZPassing an ftype of 0 will look for a file but does not work for a directory.
' w/ E; z/ i# h! F1 KTo check for a directory the ftype must be set to 100.


) H" a* P3 y2 K( \Return
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Return code:
$ J4 P% o4 x! v0 ~% g< 0 = Error
= 0 = File Exists
= 1 = File Does Not Exist
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Environment

Internal and External
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9 a( D9 g7 J7 @See Also

For description of file types see table
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gateway

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int uc4560
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+ Y5 [% Z- }- {" Aconst char * fspec,
. Q: Y( |. e0 e4 Oint ftype

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const char *	fspec	Input	File to check
int	ftype	Input	File type 8 q3 e# d" q! e$ H0 will check for files 100 will check for directories

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( q9 O% j$ F; O. w, Z- p5 x0 w查找文件也可以通过UF_CFI_ask_file_exist
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( i1 B, F/ f2 k; p8 \! LUF_CFI_ask_file_exist (view source)
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Defined in: uf_cfi.h
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Overview

* O/ a2 m4 w- [( RTest if a file exists.

6 `+ J$ ?) }1 s7 X2 vNote: This function only works with files - not directories. To check if a
+ I2 V; q3 C, Q0 Y7 E2 G$ ^directory exists use uc4560 and pass a file type of 100.

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! x6 ^* _) s0 |& {' WReturn

2 r9 C. n5 j6 t0 - No error
Otherwise - Error Code
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Environment

Internal and External


History

Originally released in V16.0

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gateway


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3 y( \  L, b6 {  Mint UF_CFI_ask_file_exist
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int * status

)

const char *	file_spec	Input	The file to check
int *	status	Output	File existence status. 0 - file exists 1 - file does not exist # E4 C8 p9 F/ l8 k 8 G& t+ w. I2 f! s$ a- ?3 O7 z

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