define pvector

if $argc == 0

help pvector

else

set $size = $arg0._M_impl._M_finish - $arg0._M_impl._M_start

set $capacity = $arg0._M_impl._M_end_of_storage - $arg0._M_impl._M_start

set $size_max = $size - 1

end

if $argc == 1

set $i = 0

while $i < $size

printf "elem[%u]: ", $i

p *($arg0._M_impl._M_start + $i)

set $i++

end

end

if $argc == 2

set $idx = $arg1

if $idx < 0 || $idx > $size_max

printf "idx1, idx2 are not in acceptable range: [0..%u].\n", $size_max

else

printf "elem[%u]: ", $idx

p *($arg0._M_impl._M_start + $idx)

end

end

if $argc == 3

set $start_idx = $arg1

set $stop_idx = $arg2

if $start_idx > $stop_idx

set $tmp_idx = $start_idx

set $start_idx = $stop_idx

set $stop_idx = $tmp_idx

end

if $start_idx < 0 || $stop_idx < 0 || $start_idx > $size_max || $stop_idx > $size_max

printf "idx1, idx2 are not in acceptable range: [0..%u].\n", $size_max

else

set $i = $start_idx

while $i <= $stop_idx

printf "elem[%u]: ", $i

p *($arg0._M_impl._M_start + $i)

set $i++

end

end

end

if $argc > 0

printf "Vector size = %u\n", $size

printf "Vector capacity = %u\n", $capacity

printf "Element "

whatis $arg0._M_impl._M_start

end

end

document pvector

Prints std::vector<T> information.

Syntax: pvector <vector> <idx1> <idx2>

Note: idx, idx1 and idx2 must be in acceptable range [0..<vector>.size()-1].

Examples:

pvector v - Prints vector content, size, capacity and T typedef

pvector v 0 - Prints element[idx] from vector

pvector v 1 2 - Prints elements in range [idx1..idx2] from vector

end

define pvector

if $argc == 0 # 如果没有带参数，那么就打印帮助提示信息

help pvector

else # 如果有参数，那么接下来准备一下size, capacity, size_max 这三个重要的参数。

set $size = $arg0._M_impl._M_finish - $arg0._M_impl._M_start # arg0 就是第一个参数，也就是vstr数组对象。注重 size 是怎么计算的。

set $capacity = $arg0._M_impl._M_end_of_storage - $arg0._M_impl._M_start

set $size_max = $size - 1

end

if $argc == 1 # 如果只有一个参数，说明要求打印出vector中所有的元素

set $i = 0

while $i < $size # 用一个 while 循环，用printf与p，打印出列表中的所有元素

printf "elem[%u]: ", $i

p *($arg0._M_impl._M_start + $i) # 注意看哦！！！！

set $i++

end

end

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