小编dev*_*vil的帖子

如何在窗口上设置gdb,以便它不允许断言失败的程序终止？我打算检查程序中的堆栈跟踪和变量.

例如,g++ -g test.cpp -o test在gdb中运行使用MinGW编译的test.cpp程序:

#include <cassert>
int main(int  argc, char ** argv) { assert(1==2); return 0; }

得到:

$ gdb test.exe
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 "i686-pc-mingw32"... …

我目前正在使用脚本生成直方图,例如:

set style histogram cluster gap 4
plot for [COL=2:10] 'example.dat' u COL:xticlabels(1) title columnheader(COL)

现在我希望在直方图中的条形图上方添加y值(数字),但是添加w labels会给出"此样式的列数不足"错误.

plot for [COL=2:10] 'example.dat' u COL:xticlabels(1) title columnheader(COL), \
    for [COL=2:10] 'example.dat' u COL title '' w labels

是否可以使用直方图样式添加y标签？

注意:我知道有绘图的例子with boxes.如果可能的话,我希望使用直方图样式.