Created
January 12, 2025 20:34
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#include <iostream> | |
#include <string> | |
bool hasPngExtension(const std::string& filename) { | |
// Find the last occurrence of the dot | |
size_t dotPos = filename.rfind('.'); | |
if (dotPos == std::string::npos) { | |
// No dot found, no extension | |
return false; | |
} | |
// Extract the extension | |
std::string extension = filename.substr(dotPos + 1); | |
// Check if the extension matches "png" strictly (case-sensitive) | |
return extension == "png"; | |
} | |
int main() { | |
std::string filename1 = "image.png"; | |
std::string filename2 = "image.PNG"; | |
std::string filename3 = "document.pdf"; | |
std::string filename4 = "no_extension"; | |
std::cout << std::boolalpha; // Print boolean values as true/false | |
std::cout << "File: " << filename1 << ", Has .png: " << hasPngExtension(filename1) << '\n'; | |
std::cout << "File: " << filename2 << ", Has .png: " << hasPngExtension(filename2) << '\n'; | |
std::cout << "File: " << filename3 << ", Has .png: " << hasPngExtension(filename3) << '\n'; | |
std::cout << "File: " << filename4 << ", Has .png: " << hasPngExtension(filename4) << '\n'; | |
return 0; | |
} |
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