strcasecmp()
Case-insensitive comparison of strings.
Syntax
strcasesmp(string1, string2, [n])
Parameter
Parameter | Definition |
|---|---|
string1 | first string to be compared |
string2 | second string to be compared |
n | length of prefix to consider for comparison |
Description
The strcasecmp() function is equivalent to the C language strcasecmp() when called with 2 arguments and strncasencmp() when called with 3 arguments. It is used to do a case insensitive comparison of two strings, or the prefix of two strings.
This function will return 0 if both strings differ only by case (or the prefix of both strings differ only by case when the optional third argument is used). Otherwise, non-zero is returned.
This function does not set the PSL errno variable.
Example
The following is an example of the strcasecmp() function:
str1="TEST"; str2="test";
if(strcasecmp(str1, str2)==0)
{
print ("The strings are the same, or differ only by case.\n");
}
else
{
print ("The strings are different.\n");
}
if(strcasecmp(str1, str2)==0)
{
print ("The strings are the same, or differ only by case.\n");
}
else
{
print ("The strings are different.\n");
}