Question

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How do I concatenate multiple C++ strings on one line?

According to this a C++ std::string is concatenated by using operator+.
Why then does this code

using namespace std;
string sql = "create table m_table(" + 
    "path TEXT," +
    "quality REAL," +
    "found INTEGER);"; 

cause this error?

invalid operands of types ‘const char [22]’ and ‘const char [17]’ to
binary ‘operator+’

Answer 1

What chris said, but in this particular case you can do

string sql = "create table m_table("
    "path TEXT,"
    "quality REAL,"
    "found INTEGER);"; 

Which will concatenate strings at compile time.