sl.cpp: In function 'int main()': sl.cpp:15: warning: name lookup of 'i' changed sl.cpp:8: warning: matches this 'i' under ISO standard rules sl.cpp:13: warning: matches this 'i' under old rules sl.cpp:21: warning: comparison between signed and unsigned integer expressions sl.cpp:27: warning: comparison between signed and unsigned integer expressions sl.cpp:60: warning: comparison between signed and unsigned integer expressions