11-07-2019
I was so stupid when you first pointed out that I should add a line to empty str1 with str1[0]=0; but I thought you had typos so that I simply added the single quotes: str1[0]='0'; Last night I actually tried str1[0]='\0'; without realizing that is the right way, or understanding until your last reply. It finally works now and I understand it better.
Thank you so much for all your time and patience with me!
Last edited by yifangt; 11-07-2019 at 05:57 PM..
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LEARN ABOUT SUNOS
wsscanf
wsscanf(3C) Standard C Library Functions wsscanf(3C)
NAME
wsscanf - formatted input conversion
SYNOPSIS
#include<stdio.h>
#include <widec.h>
int wsscanf(wchar_t *s, const char *format, /* pointer */ ... );
DESCRIPTION
The wsscanf() function reads Process Code characters from the Process Code string s, interprets them according to the format, and stores
the results in its arguments. It expects, as arguments, a control string format, and a set of pointer arguments indicating where the con-
verted input should be stored. The results are undefined if there are insufficient args for the format. If the format is exhausted while
args remain, the excess args are simply ignored.
The conversion specifications and behavior of wsscanf() are the same as the regular sscanf(3C) function except that the source is a Process
Code string for wsscanf() and on Extended Unix Code (EUC) character string for sscanf(3C).
RETURN VALUES
Upon successful completion, wsscanf() returns the number of characters matched. Otherwise, it returns a negative value.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
wsprintf(3C), printf(3C), scanf(3C), attributes(5)
SunOS 5.10 29 Dec 1996 wsscanf(3C)