This creates an array of colors, then removes the green element. The remaining array elements are still accessible after the operation. Using -nocomplain OptionThe -nocomplain option prevents errors when unsetting non-existent variables. unset_nocomplain.tcl ...
表 6-1 数组操作命令表 命令格式 array exists arr array get arr ?pattern? array names arr ?pattern? array set arr list array size arr array startsearch arr array nextelement arr index array donesearch arr index parray arr 说明 判断 arr 是否为数组变量,是返回 1 返回一个包含交替出现索引,...
Vivado%:setall_env_var [array namesenv] It is possible to check if an environment variable exists (i.e a key toenvarray exists) by using theinfocommand. For example to check forMYVARNAME: Vivado%if{[info existsenv(MYVARNAME)]} { … } ...
while {[array anymore days $start]} { Thearray anymorecommand returns 1 if there are any more elements left to be processed in an array search. set key [array nextelement days $start] Thearray nextelementcommand returns the name of the next element in the array. ...
tsv::exists array ?element? Returns boolean indicating whether the given ele- ment exists, or if no element is given, whether the shared array exists. tsv::get array element ?var- name? Returns the value of the shared variable. If varname is provided, the value is stored in the ...
Reading our Element G series review or Hisense H6570G review highlights how even more budget-friendly options can offer an excellent resolution for many users. However, if you don’t need 4K quality, there are still options that provide great picture quality, like in our Samsung N5200 review....
{variableName arrayElement operation} { set op(w) "Write"; set op(u) "Unset"; set op(r) "Read" ;#定义一个操作数组 set level [info level] 第 45 页共 63 页 incr level -1; if {$level > 0} { set procid [info level $level] } else {set procid "main"} 中 ;#当级别为零,...
if {![info exists foobar]} { set foobar 0 } else { incr foobar } Example 7–6 on page 86 implements a new version of incr which handles this case. More about Math Expressions This section describes a few fine points about math in Tcl scripts. In Tcl 7.6 and earlier versions math ...
Result String None Set _cerrno No Sample Usage The event_wait event detector returns an array type value with a single element named event_state. Event_state is a value sent back from the EEM Server indicating whether or not an error has occurred in processing the event. An example of an...
Sets jarr to reference the JSON array found at index, where indexing starts at 0. Returns 1 for success, 0 for failure. top BoolAt # index is an integer set retBool [CkJsonArray_BoolAt $index]Introduced in version 9.5.0.56Returns the boolean value of the Nth array element. Indexing ...