Compiler output
prog.cpp: In function ‘int main()’:
prog.cpp:24:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
prog.cpp:25:22: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null]
prog.cpp:52:22: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null]
prog.cpp:88:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
prog.cpp:91:60: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
prog.cpp:95:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
prog.cpp:102:66: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
prog.cpp:115:54: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
prog.cpp:115:80: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
