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# normally, "expensive" operations yield no comments --------------------------
tcc 2>&1 >/dev/null
prio {
class if raw[0] != 0;
}
EOF
# -Wexpensive enables "expensive" warnings ------------------------------------
tcc -Wexpensive 2>&1 >/dev/null
prio {
class if raw[0] != 0;
}
EOF
<stdin>:2: warning: "!=" is an "expensive" operation
warning: negation is an "expensive" operation
warning: negation is an "expensive" operation
# -Wexperror makes them fatal errors ------------------------------------------
tcc -Wexpensive -Wexperror 2>&1 >/dev/null
prio {
class if raw[0] != 0;
}
EOF
ERROR
<stdin>:2: "!=" is an "expensive" operation
# -Wexperror alone has no effect ----------------------------------------------
tcc -Wexperror 2>&1 >/dev/null
prio {
class if raw[0] != 0;
}
EOF
# -Wexppostopt defers "expensive" check ---------------------------------------
tcc -Wexppostopt 2>&1 >/dev/null
prio {
class if raw[0] != 0;
}
EOF
warning: negation is an "expensive" operation
warning: negation is an "expensive" operation
# -Wexppostopt plus -Wexperror yields fatal errors ----------------------------
tcc -Wexppostopt -Wexperror 2>&1 >/dev/null
prio {
class if raw[0] != 0;
}
EOF
ERROR
negation is an "expensive" operation
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