C++ strcspn() Function
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C++ strcspn()
The strcspn() function scans str1 for the first occurrence of any of the characters that are part of str2, returning index value of the first matched character.
This function is defined in <cstring> header file.
Example
C++ Compiler
#include <iostream>
#include <cstring>
using namespace std;
int main()
{
long len;
char str1[] = "wikimass.com";
char str2[] = "msk";
// k is the first match
len = strcspn(str1, str2);
cout << "Index of first matched character: " << len;
return 0;
}
Output
Index of first matched character: 2
Syntax
size_t strcspn(const char *str1, const char *str2)
Parameter Values
| Value | Type | Explanation |
|---|---|---|
| str1 | Required | Specifies the string 1 |
| str2 | Required | Specifies the string 2 |
Return Value
| Value | Explanation |
|---|---|
| Number | Returns the index value of the first matched character. |
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