strlen

This function calculates the length of the string.

int  @strlen(stirng buf);

int @strlen (stirng[] buf) - Returns the length of the string array. (Supported in version 10.3.6.24 and later)

Parameters

string buf : string to know the length

string[] : array of strings to know the buffer length

Return Value

It returns the number of characters in string

Example1)

length = @strlen("1234");

Description : the ‘length’ is 4 that is the number of characters in “1234”.

Example2)

length = @strlen("Analog");

Description : the ‘length’ is 6 that is the number of characters in “Analog”.

Example3)

$AI_0001=1234;

@sprintf(buf, "%d", $AI_0001);

length = @strlen(buf);

Description : The AI_0001 is a Analog Input tag. The value of AI_0001 is converted to a string using @sprintf() function and is stored in the variable ‘buf’ (char type). And then it finds the length. As a result, the ‘length’ is 4.

Example 4)
buf[0] = "aaaa";
buf[1] = "bbbbb";
stringlength = @strlen(buf[0]); // Returns a "aaaa" length of 4.
arraylength = @strlen(buf); // Returns the array length of the buf. (Supported in version 10.3.6.24 and later)
Sentence description: If the size was 3 when declaring the buf variable, 3 is stored in the array length.

Related Helps)

@sprintf()

@strcat()

@strcmp()

@strcpy()

@stricmp()

@strlen()

@strncmp()

@strnicmp()