Posted on 2010-12-24 22:22
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［轉］配置GDB以支持查看stl容器數據
2009-09-08 10:04
http://blog.chinaunix.net/u1/44543/showart_1953788.html ? 2. #cat dbinit_stl_views-1.03.txt >> ~/.gdbinit ? 3. 若正處于gdb中，運行命令: ?? (gdb) source ~/.gdbinit ? 4. 例如，如下代碼： bugging.cpp #include<vector>
usingnamespacestd;
int main()
{
vector<int> vec;
vec.push_back(2);
vec.push_back(3);
vec.push_back(4);
return 0;
}
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? 編譯： ? #g++-o bugging -g bugging.cpp
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gdb調試： # gdb bugging
GNU gdb 6.8
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and"show warranty"for details.
This GDB was configured as "i486-slackware-linux"...
(gdb) help 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
(gdb)break main
Breakpoint 1 at 0x80485c6:file bugging.cpp,line 6.
(gdb) run
Starting program:/root/learn/c++/bugging
Breakpoint 1, main () at bugging.cpp:6
6????????vector<int> vec;
(gdb) n
7????????vec.push_back(2);
(gdb)
8????????vec.push_back(3);
(gdb) 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
(gdb) pvector vec
elem[0]: $1 = 2
Vector size = 1
Vector capacity = 1
Element type =int*
(gdb) n
9????????vec.push_back(4);
(gdb)
10????????return 0;
(gdb) pvector vec
elem[0]: $2 = 2
elem[1]: $3 = 3
elem[2]: $4 = 4
Vector size = 3
Vector capacity = 4
Element type =int*
(gdb)
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5. 默認情況下gdb不能用[]查看stl容器的數據元素，提示如下錯誤： (gdb) print vec[0]
One of the arguments you tried to pass to operator[] could not be converted to what the function wants.
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