[英]Searching for Junk Characters in a String
Friends朋友们
I want to integrate the following code into the main application code.我想将以下代码集成到主应用程序代码中。 The junk characters that come populated with the o/p string dumps the application The following code snipette doesnt work..
使用 o/p 字符串填充的垃圾字符会转储应用程序以下代码片段不起作用..
void stringCheck(char*);
int main()
{
char some_str[] = "Common Application FE LBS Serverr is down";
stringCheck(some_str);
}
void stringCheck(char * newString)
{
for(int i=0;i<strlen(newString);i++)
{
if ((int)newString[i] >128)
{
TRACE(" JUNK Characters in Application Error message FROM DCE IS = "<<(char)newString[i]<<"++++++"<<(int)newString[i]);
}
}
}
Can someone please show me the better approaches to find junk characters in a string..有人可以告诉我在字符串中查找垃圾字符的更好方法吗?
Many Thanks非常感谢
Your char
probably is represented signed.您的
char
可能已签名。 Cast it to unsigned char
instead to avoid that it becomes a negative integer when casting to int
:将其转换为
unsigned char
以避免在转换为int
时它变为负 integer :
if ((unsigned char)newString[i] >128)
Depending on your needs, isprint
might do a better job, checking for a printable character, including space:根据您的需要,
isprint
可能会做得更好,检查可打印字符,包括空格:
if (!isprint((unsigned char)newString[i]))
...
Note that you have to cast to unsigned char
: input for isprint
requires values between 0
and UCHAR_MAX
as character values.请注意,您必须强制转换为
unsigned char
: isprint
的输入需要0
和UCHAR_MAX
之间的值作为字符值。
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