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-rw-r--r--src/utils.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/utils.h b/src/utils.h
index ca2c77f..63ccf55 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -28,9 +28,10 @@ enum class TokenType {
VALUE_IDENTIFIER,
};
-TokenType determineToken(char);
+TokenType determineToken(const char);
+TokenType determineToken(const std::string&);
PrecedenceLevel precedence(TokenType);
-std::vector<std::string> lexer(std::string);
+std::vector<std::string> lexer(const std::string&);
double doubleToString(const std::string&);