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The toy language I've been playing around with represents all strings as a struct in llvm; struct string{ char *ptr; int str_len; int buffer_len; } And my AST has an interface like; String_AST{ int measure(); void copy(char *dest); struct string get_value(); } A constant string can be measured at compile time, for a string variable measure() just extracts str_len. Strings passed in from other external sources are measured immediately, but llvm optimisations will eliminate the call...

All, I am building my own language with llvm as the base. I was working on string concatenation (where a string is just an array of characters cast to a pointer to a character (i8*) ). Given two strings, it is possible to determine the length of new string by summing the number of characters until the null terminator and adding one. Unfortunately, I have no idea how to use the c-api to store

...eman <Jeremy.Lakeman at gmail.com>wrote: > The toy language I've been playing around with represents all strings as a > struct in llvm; > > struct string{ > char *ptr; > int str_len; > int buffer_len; > } > > And my AST has an interface like; > > String_AST{ > int measure(); > void copy(char *dest); > struct string get_value(); > } > > A constant string can be measured at compile time, for a string variable > measure() just extracts str_len. Strings passed in from other external > sources are measured immediately, but llv...