Here is source code of the C++ Program to Perform Naive String Matching. The C++ program is successfully compiled and run on a Linux system. The program output is also shown below.
void search(char *pat, char *txt)
int M = strlen(pat);
int N = strlen(txt);
/* A loop to slide pat one by one */
for (int i = 0; i <= N - M; i++)
/* For current index i, check for pattern match */
for (j = 0; j < M; j++)
if (txt[i + j] != pat[j])
if (j == M) // if pat[0...M-1] = txt[i, i+1, ...i+M-1]
printf("Pattern found at index %d \n", i);
/* Driver program to test above function */
char *txt = "AABAACAADAABAAABAA";
char *pat = "AABA";
$ g++ StringMatchingNaive.cpp $ a.out Pattern found at index 0 Pattern found at index 9 Pattern found at index 13 ------------------ (program exited with code: 0) Press return to continue
Sanfoundry Global Education & Learning Series – 1000 C++ Programs.