Difference between revisions of "Per-project variables"
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In addition to [[Global compiler variables|global variables]], Code::Blocks supports usage of variables whose definition is stored within a project. To create a project variable, open ''Project->Build options...->Custom variables (tab)''. From the tree selection on the left-hand side, Code::Blocks offers the option of having the variable defined for the entire project, or per build target. | In addition to [[Global compiler variables|global variables]], Code::Blocks supports usage of variables whose definition is stored within a project. To create a project variable, open ''Project->Build options...->Custom variables (tab)''. From the tree selection on the left-hand side, Code::Blocks offers the option of having the variable defined for the entire project, or per build target. | ||
| − | The center box contains a list of all currently defined project variables (this is often empty). Any variable defined here is accessible through | + | The center box contains a list of all currently defined project variables (this is often empty). Any variable defined here is accessible through the following styles: |
| − | ''Note: all [[Global compiler variables#Constraints|global variable constraints]] apply to per-project variables | + | * <code>$VARIABLE</code> |
| + | * <code>$(VARIABLE)</code> | ||
| + | * <code>${VARIABLE}</code> | ||
| + | * <code>%VARIABLE%</code> | ||
| + | |||
| + | It is often useful to use project variables to manage filename pre/post-fixes, as it enables all occurrences to be changed simultaneously. | ||
| + | |||
| + | ''Note: although variable definitions allow for the inclusion of other variables within them, care must be taken to insure an infinite loop is not created; Code::Blocks will detect and report many (but not all) erroneous definitions. Also, all [[Global compiler variables#Constraints|global variable naming constraints]] apply to per-project variables.'' | ||
== See also == | == See also == | ||
* [[Variable expansion#List of available builtins|List of predefined variables]] | * [[Variable expansion#List of available builtins|List of predefined variables]] | ||
| + | * [[Code::Blocks variable types synthesis]] | ||
Latest revision as of 15:09, 8 October 2011
In addition to global variables, Code::Blocks supports usage of variables whose definition is stored within a project. To create a project variable, open Project->Build options...->Custom variables (tab). From the tree selection on the left-hand side, Code::Blocks offers the option of having the variable defined for the entire project, or per build target.
The center box contains a list of all currently defined project variables (this is often empty). Any variable defined here is accessible through the following styles:
$VARIABLE$(VARIABLE)${VARIABLE}%VARIABLE%
It is often useful to use project variables to manage filename pre/post-fixes, as it enables all occurrences to be changed simultaneously.
Note: although variable definitions allow for the inclusion of other variables within them, care must be taken to insure an infinite loop is not created; Code::Blocks will detect and report many (but not all) erroneous definitions. Also, all global variable naming constraints apply to per-project variables.
