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string: make substr() copy the data, like in Java and C#; remove .cstr()

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this makes managing memory used by strings much easier
V strings are now fully compatible with C strings
This commit is contained in:
Alexander Medvednikov
2019-07-22 16:51:33 +02:00
parent 59eac5686f
commit 390394b56b
10 changed files with 68 additions and 66 deletions
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4
vlib/pg/pg.v
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@@ -29,7 +29,7 @@ fn C.PQgetvalue(voidptr, int, int) byteptr
pub fn connect(dbname, user string) DB {
conninfo := 'host=localhost user=$user dbname=$dbname'
conn:=C.PQconnectdb(conninfo.cstr())
conn:=C.PQconnectdb(conninfo.str)
status := C.PQstatus(conn)
if status != CONNECTION_OK {
error_msg := C.PQerrorMessage(conn)
@@ -87,7 +87,7 @@ pub fn (db DB) q_strings(query string) []pg.Row {
}
pub fn (db DB) exec(query string) []pg.Row {
res := C.PQexec(db.conn, query.cstr())
res := C.PQexec(db.conn, query.str)
e := string(C.PQerrorMessage(db.conn))
if e != '' {
println('pg exec error:')