Index of the element in the array

root [4] .L findIndex.C+ Info in <ACLiC>: script has already been loaded in interpreted mode Info in <ACLiC>: unloading /home/bayat/BINA/BINA_offline_ForThesis_elasticNtuple_Nov_2015_peds/macros/BallCalibMacros/./findIndex.C and compiling it Info in <TUnixSystem::ACLiC>: creating shared library /home/bayat/BINA/BINA_offline_ForThesis_elasticNtuple_Nov_2015_peds/macros/BallCalibMacros/./findIndex_C.so In file included from /home/bayat/BINA/BINA_offline_ForThesis_elasticNtuple_Nov_2015_peds/macros/BallCalibMacros/findIndex_C_ACLiC_dict.h:34:0, from /home/bayat/BINA/BINA_offline_ForThesis_elasticNtuple_Nov_2015_peds/macros/BallCalibMacros/findIndex_C_ACLiC_dict.cxx:17: /home/bayat/BINA/BINA_offline_ForThesis_elasticNtuple_Nov_2015_peds/macros/BallCalibMacros/./findIndex.C: In function ‘int findIndex(std::vector<int>, int)’: /home/bayat/BINA/BINA_offline_ForThesis_elasticNtuple_Nov_2015_peds/macros/BallCalibMacros/./findIndex.C:10:8: error: ‘it’ does not name a type /home/bayat/BINA/BINA_offline_ForThesis_elasticNtuple_Nov_2015_peds/macros/BallCalibMacros/./findIndex.C:11:7: error: ‘it’ was not declared in this scope /home/bayat/BINA/BINA_offline_ForThesis_elasticNtuple_Nov_2015_peds/macros/BallCalibMacros/./findIndex.C:12:35: error: ‘it’ was not declared in this scope g++: error: /home/bayat/BINA/BINA_offline_ForThesis_elasticNtuple_Nov_2015_peds/macros/BallCalibMacros/findIndex_C_ACLiC_dict.o: No such file or directory Error in <ACLiC>: Compilation failed!