At 20:44 14.10.2009 +0800, vinod wrote: >Hi all ~ >I have #include <string.h> , but why am I still can't declare string ? > > >When I compile my code ,show the error msg as follows : >root@acer:~/probeServer# gcc probec.c -o probec -lm -lpthread >probec.c:1:18: error: string: No such file or directory >probec.c: In function 'main': >probec.c:458: error: 'string' undeclared (first use in this function) >probec.c:458: error: (Each undeclared identifier is reported only once You should give people more time before sending another post. Have you looked into string.h? Do you probably need std::string or use namespace std? bye Fabi