strcmp
Compare strings in Stateflow chart (case sensitive)
Description
tf = strcmp(str1,str2)str1 and str2.
In charts that use MATLAB® as the action language, the operator returns
1(true) if the strings are identical and0(false) otherwise.In charts that use C as the action language, the operator returns
0if the strings are identical. Otherwise, it returns a nonzero integer that depends on the compiler that you use. This value can differ in simulation and generated code.
Examples
Return a value of 1 (true) because
the strings are equal.
x = strcmp("Hello","Hello");
Return a value of 0 (false) because
the strings are not equal.
y = strcmp("Hello","Hello!");
You can compare strings by using relational operators. Use
== to determine if two strings are equal.
[str1 == str2]
Use ~= to determine if two strings are not
equal.
[str1 ~= str2]
Return a value of 0 because the strings are
equal.
x = strcmp("Hello","Hello");
Return a nonzero value because the strings are not equal.
y = strcmp("Hello","Hello!");
You can compare strings by using relational operators. Use
== to determine if two strings are equal.
[str1 == str2]
Use != or ~= to determine if two
strings are not equal.
[str1 != str2]
Return a value of 0 because the strings start with the
same five characters.
z = strcmp("Hello","Hello!",5);
This syntax is supported only in Stateflow charts that use C as the action language. In charts that use
MATLAB as the action language, use strncmp.
Input Arguments
Version History
Introduced in R2018b
