typedef const char* SNESLineSearchType; #define SNESLINESEARCHBT "bt" #define SNESLINESEARCHNLEQERR "nleqerr" #define SNESLINESEARCHBASIC "basic" #define SNESLINESEARCHL2 "l2" #define SNESLINESEARCHCP "cp" #define SNESLINESEARCHSHELL "shell" #define SNESLINESEARCHNCGLINEAR "ncglinear"