find in set of pairs using first value cpp 1

find in set of pairs using first value cpp

ByAnurag batra 
auto it = std::find_if(st.begin(), st.end(), [](const pair& p ){ return p.first == 1; });

Here is what the above code is Doing:
1. We are using the find_if algorithm to find the first element in the vector that satisfies the condition.
2. The condition is a lambda function that takes a pair and returns true if the first element of the pair is 1.
3. The find_if algorithm returns an iterator to the first element that satisfies the condition.
4. If the element is not found, the iterator will be equal to the end iterator.

Similar Posts

Get the absolute path of a boost filePath as a string

Get the absolute path of a boost filePath as a string

ByAnurag batra

boost::filesystem::absolute(path).string() Here is what the above code is Doing: 1. We’re using the boost::filesystem::path class to represent the path. 2. We’re using the boost::filesystem::absolute() function to convert the path to an absolute path. 3. We’re using the boost::filesystem::string() function to convert the path to a string.

cpp set time

cpp set time

ByAnurag batra

#include struct tm time = { 0 }; time.tm_year = Year – 1900; time.tm_mon = Month – 1; time.tm_mday = Day; time.tm_hour = Hour; time.tm_min = Minute; time.tm_sec = Second; if (time.tm_year < 0) { time.tm_year = 0; } time_t t = mktime(&time); if (t != (time_t) -1) { stime(&t); } Here is what the...