Compilare: user.cpp: In function ‘void citire(char*)’: user.cpp:15:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<strlen(s); i++) ^ user.cpp: In function ‘void creare()’: user.cpp:24:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1; i<strlen(b); i++) ^ user.cpp: In function ‘void comparare()’: user.cpp:60:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<strlen(a); i++) ^ user.cpp:70:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(x==strlen(b)-1) ^ user.cpp: In function ‘void citire(char*)’: user.cpp:13:12: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets(s); ^ user.cpp: In function ‘int main()’: user.cpp:105:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("strmatch.in","r",stdin); ^ user.cpp:106:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("strmatch.out","w",stdout); ^ /tmp/cc0udRO8.o: In function `citire(char*)': user.cpp:(.text+0x31): warning: the `gets' function is dangerous and should not be used.