Use of pointer programming, statistics, the length of the string. (do not use the string length func-CodePudding

Using pointer programming, statistics, the length of the string, (do not use the string length function)

CodePudding user response:

 size_t MyStrLen (char * STR) 
{
If (STR==NULL) 
return 0; 
Char * p=STR. 
While (* p!='\ 0') {
p++; 
} 
The return p - STR; 
}

CodePudding user response:

The

reference 1/f, the truth is more important than right or wrong response:

 size_t MyStrLen (char * STR) 
{
If (STR==NULL) 
return 0; 
Char * p=STR. 
While (* p!='\ 0') {
p++; 
} 
The return p - STR; 
}

The following for your reference ~

 size_t my_strlen (const char * STR) 
{
If (STR==NULL) 
return 0; 

Const char * p=STR; 

While (* p) 
p++; 

The return p - STR; 
}

CodePudding user response:

Len=0;
While (* str++)
Len++;