C++ query whether a string or char ends with a specific character?

The Solution is Simple: Checking if a String or Character Array Ends with a Certain Substring in C++

1. Example 1: Checking if a String Ends with a Specific Substring
2. Example 2: Checking if a String Ends with a Specific Substring

1.) Example 1: Checking if a String Ends with a Specific Substring

#include <tchar.h>

// Checks if the given string
// ends with the specified suffix

BOOL Ends_With_String(LPCTSTR string, LPCTSTR suffix)
{
int len1 = lstrlen(string);
int len2 = lstrlen(suffix);

if (len2 > len1)
    return FALSE;
// If the suffix is longer than
// the input string, it cannot be at the end.

// Compares the part of the string
// before the suffix (ignores case).
if (lstrcmpi(string + len1 - len2, suffix) == 0)
    return TRUE; // The string ends with the given suffix.

return FALSE;
}

// Checks if the file has the specified file extension
BOOL Is_File_Extension_Check(LPCTSTR file_path, LPCTSTR file_extension)
{
LPCTSTR lpsz = _tcsrchr(file_path, (TCHAR)_T("."));
if (lpsz <= 0)
    return FALSE; // If no file extension is found in the path.

// Compares the found file extension
// with the given extension (ignores case).
if (lstrcmpi(lpsz, file_extension) == 0)
    return TRUE; // The file has the specified extension.

return FALSE;
}

// Returns the file extension of a file
LPCTSTR Query_File_Extension(LPCTSTR file_path)
{
LPCTSTR lpsz = _tcsrchr(file_path, (TCHAR)_T("."));
if (lpsz <= 0)
    return NULL;
    // If no file extension is found in the path.

// Returns the pointer to the part of the path
// that contains the file extension (excluding the dot).
return lpsz + 1;
}

2.) Example 2: Checking if a String Ends with a Specific Substring

#include <stdio.h>
#include <string.h>

// Function to check if a string ends with a specific suffix
int endsWith(const char *fullString, const char *suffix) {
// Calculate the lengths of the strings
size_t fullStringLength = strlen(fullString);
size_t suffixLength = strlen(suffix);

// Check if the suffix is longer than the entire string
if (suffixLength > fullStringLength) {
    return 0;  // The suffix is longer than the entire string
}

// Comparison considering case sensitivity
// return strcmpi(fullString + fullStringLength - suffixLength, suffix) == 0;

// Comparison with case sensitivity
return strcmp(fullString + fullStringLength - suffixLength, suffix) == 0;
}

int main() {
const char *str = "Hello, World!";
const char *suffix = "World!";

// Check if the string ends with the suffix "World!"
if (endsWith(str, suffix)) {
    printf("The string ends with \"%s\".\n", suffix);
} else {
    printf("The string does not end with \"%s\".\n", suffix);
}

printf("\n");

// Test a new suffix (lowercase)
suffix = "world!";
if (endsWith(str, suffix)) {
    printf("The string ends with \"%s\".\n", suffix);
} else {
    printf("The string does not end with \"%s\".\n", suffix);
}

printf("\n");

return 0;
}

/*
Output:

The string ends with "World!".

The string does not end with "world!".

Press any key to continue

*/