MantisBT - CMake
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IDProjectCategoryView StatusDate SubmittedLast Update
0013187CMakeCMakepublic2012-05-03 13:402016-06-10 14:31
ReporterPatrick Spendrin 
Assigned ToKitware Robot 
PrioritynormalSeverityminorReproducibilityalways
StatusclosedResolutionmoved 
PlatformWindowsOSWindowsOS Version7
Product VersionCMake-2-8 
Target VersionFixed in Version 
Summary0013187: ARGVx is not reset in recursive function calls
DescriptionWhen recursively calling functions, ARGV0-ARGV9 are inherited by the inner function calls - this will make it hard to decide for the inner function calls to decide whether they got an argument or not.

Steps To Reproducerun the following code:
function(testfunc1)
    message(STATUS "testfunc1: ${ARGV0} ${ARGV1} ${ARGV2}")
    testfunc2("${ARGV0}")
endfunction(testfunc1)

function(testfunc2)
    message(STATUS "testfunc2: ${ARGV0} ${ARGV1} ${ARGV2}")
endfunction(testfunc2)

testfunc1(para1 para2 para3)

expected result is
L:\>cmake -P C:\kde\kde-stable\tmp\cmake-argv-bug\argv-bug.cmake
-- testfunc1: para1 para2 para3
-- testfunc2: para1

actual result is
L:\>cmake -P C:\kde\kde-stable\tmp\cmake-argv-bug\argv-bug.cmake
-- testfunc1: para1 para2 para3
-- testfunc2: para1 para2 para3
Additional InformationARGN works as expected;
It is unclear whether anybody could rely on this bug, since it likely depends on the order in which functions are called.
TagsNo tags attached.
Relationships
related to 0015380closed Daniele E. Domenichelli Misleading documentation in "Macro Argument Caveats" caveats 
has duplicate 0013387closed Stephen Kelly ARGV1 scope leak 
Attached Files
Issue History
Date ModifiedUsernameFieldChange
2012-05-03 13:40Patrick SpendrinNew Issue
2012-07-09 13:33Rolf Eike BeerRelationship addedhas duplicate 0013387
2015-02-26 16:34Stephen KellyRelationship addedrelated to 0015380
2016-06-10 14:28Kitware RobotNote Added: 0042038
2016-06-10 14:28Kitware RobotStatusnew => resolved
2016-06-10 14:28Kitware RobotResolutionopen => moved
2016-06-10 14:28Kitware RobotAssigned To => Kitware Robot
2016-06-10 14:31Kitware RobotStatusresolved => closed

Notes
(0042038)
Kitware Robot   
2016-06-10 14:28   
Resolving issue as `moved`.

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