Horje
check file exist cpp Code Example
check file exist cpp 
#include <sys/stat.h>
#include <unistd.h>
#include <string>
#include <fstream>

inline bool exists_test0 (const std::string& name) {
    ifstream f(name.c_str());
    return f.good();
}

inline bool exists_test1 (const std::string& name) {
    if (FILE *file = fopen(name.c_str(), "r")) {
        fclose(file);
        return true;
    } else {
        return false;
    }   
}

inline bool exists_test2 (const std::string& name) {
    return ( access( name.c_str(), F_OK ) != -1 );
}

inline bool exists_test3 (const std::string& name) {
  struct stat buffer;   
  return (stat (name.c_str(), &buffer) == 0); 
}
Source: stackoverflow.com
check file exist cpp 
Method exists_test0 (ifstream): **0.485s**
Method exists_test1 (FILE fopen): **0.302s**
Method exists_test2 (posix access()): **0.202s**
Method exists_test3 (posix stat()): **0.134s**
Source: stackoverflow.com



Cpp

Related
clear buffer memory in c / c++ Code Example clear buffer memory in c / c++ Code Example
void value not ignored as it ought to be Code Example void value not ignored as it ought to be Code Example
print hello world c++ Code Example print hello world c++ Code Example
eosio parse string Code Example eosio parse string Code Example
on component end overlap c++ Code Example on component end overlap c++ Code Example

Type:
 Code Example
Category:
 Coding
Sub Category:
 Code Example
Uploaded by:
 Admin
Views:
 9



 

Horje