Warnings give the programmer information about possible errors in qore code.
Warnings can be enabled using the -W command-line option (see Command-Line Parsing for more information) or by using the %enable-all-warnings
or %enable-warning
parse directives.
Note that parsing is done in two stages, so if a warning is enabled when the second stage of parsing begins, the warning can be generated anywhere in the source code. Parse directives are processed in the first stage of parsing. In other words, for warnings only raised in the second stage of parsing, it is not possible to turn on and turn off these warnings for specific code blocks within a section of text being parsed.
Table 7.1. Warnings
Warning Code | Description |
---|---|
| This warning is raised when the same local variable is declared more than once within the same lexical scope. |
| This warning is raised when a program tries to change the warning mask with parse options, but the warnings are locked. |
| This warning is raised when a program tries to enable or disable an unknown warning. |
| This warning is raised when a program uses a variable that has not been declared with my or our. |
| Raised when a program declares a global variable more than once. |
| Raised when code is defined that can never be executed (for example, code following a return or thread_exit statement). |