How to convert a string variable containing time to time t type in c

Question

I have a string variable containing time in hh mm ss format  How to convert it into time t type  eg  string time details    16 35 12   Also  how to compare two variables containing time so as to decide which is the earliest  eg   string curr time    18 35 21       string user time    22 45 31

User · Answer

With C  11 you can now do  struct std  tm tm  std  istringstream ss  16 35 12    ss  gt  gt  std  get time  amp tm    H  M  S       or just  T in this case std  time t time   mktime  amp tm     see std  get time and strftime for reference

User · Answer

This should work   int hh  mm  ss  struct tm when    0    sscanf s date    d  d  d    amp hh   amp mm   amp ss     when tm hour   hh  when tm min   mm  when tm sec   ss   time t converted  converted   mktime  amp when     Modify as needed

User · Answer

You can use strptime 3  to parse the time  and then mktime 3  to convert it to a time t   const char  time details    16 35 12   struct tm tm  strptime time details    H  M  S    amp tm   time t t   mktime  amp tm       t is now your desired time t

[c++] How to convert a string variable containing time to time_t type in c++?

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