我有一个程序：
此时，正如预期的那样，程序崩溃了。
堆栈的内容打印为行：
以下是示例输出：
ubuntu@ubuntu:~/Desktop$ ./main first_arg second_arg third_arg
argv[0]./main bfd445d1 0xbfd441f4
argv[1]first_arg bfd445d8 0xbfd441f8
argv[2]second_arg bfd445e2 0xbfd441fc
argv[3]third_arg bfd445ed 0xbfd44200
env[0]ORBIT_SOCKETDIR=/tmp/orbit-ubuntu bfd445f7 0xbfd44208
env[1]SSH_AGENT_PID=4294 bfd445f7 0xbfd4420c
env[2]TERM=xterm bfd445f7 0xbfd44210
env[3]SHELL=/bin/bash bfd445f7 0xbfd44214
env[4]XDG_SESSION_COOKIE=b16da184017a223e33dfbc7700000025-1316532826.4763-1998941864 bfd445f7 0xbfd44218
env[5]WINDOWID=60817444 bfd445f7 0xbfd4421c
env[6]GNOME_KEYRING_CONTROL=/tmp/keyring-PF9cWq bfd445f7 0xbfd44220
env[7]GTK_MODULES=canberra-gtk-module bfd445f7 0xbfd44224
env[8]USER=ubuntu bfd445f7 0xbfd44228
env[9]LS_COLORS=rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.dz=01;31:*.gz=01;31:*.lz=01;31:*.xz=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.rar=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.jpg=01;35:*.jpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.axv=01;35:*.anx=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=00;36:*.au=00;36:*.flac=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:*.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.axa=00;36:*.oga=00;36:*.spx=00;36:*.xspf=00;36: bfd445f7 0xbfd4422c
env[a]SSH_AUTH_SOCK=/tmp/keyring-PF9cWq/ssh bfd445f7 0xbfd44230
env[b]SESSION_MANAGER=local/ubuntu:@/tmp/.ICE-unix/4253,unix/ubuntu:/tmp/.ICE-unix/4253 bfd445f7 0xbfd44234
env[c]USERNAME=ubuntu bfd445f7 0xbfd44238
env[d]DEFAULTS_PATH=/usr/share/gconf/gnome.default.path bfd445f7 0xbfd4423c
env[e]XDG_CONFIG_DIRS=/etc/xdg/xdg-gnome:/etc/xdg bfd445f7 0xbfd44240
env[f]PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games bfd445f7 0xbfd44244
env[10]DESKTOP_SESSION=gnome bfd445f7 0xbfd44248
env[11]PWD=/home/ubuntu/Desktop bfd445f7 0xbfd4424c
env[12]GDM_KEYBOARD_LAYOUT=us bfd445f7 0xbfd44250
env[13]LANG=en_US.UTF-8 bfd445f7 0xbfd44254
env[14]GDM_LANG=en_US.UTF-8 bfd445f7 0xbfd44258
env[15]MANDATORY_PATH=/usr/share/gconf/gnome.mandatory.path bfd445f7 0xbfd4425c
env[16]UBUNTU_MENUPROXY=libappmenu.so bfd445f7 0xbfd44260
env[17]COMPIZ_CONFIG_PROFILE=ubuntu bfd445f7 0xbfd44264
env[18]GDMSESSION=gnome bfd445f7 0xbfd44268
env[19]SHLVL=1 bfd445f7 0xbfd4426c
env[1a]HOME=/home/ubuntu bfd445f7 0xbfd44270
env[1b]LANGUAGE=en_US:en bfd445f7 0xbfd44274
env[1c]GNOME_DESKTOP_SESSION_ID=this-is-deprecated bfd445f7 0xbfd44278
env[1d]LOGNAME=ubuntu bfd445f7 0xbfd4427c
env[1e]XDG_DATA_DIRS=/usr/share/gnome:/usr/local/share/:/usr/share/ bfd445f7 0xbfd44280
env[1f]DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-DTbn1HNZFU,guid=3b2a0c2f55352a2d70678ffc000000a3 bfd445f7 0xbfd44284
env[20]LESSOPEN=| /usr/bin/lesspipe %s bfd445f7 0xbfd44288
env[21]WINDOWPATH=7 bfd445f7 0xbfd4428c
env[22]DISPLAY=:0.0 bfd445f7 0xbfd44290
env[23]LESSCLOSE=/usr/bin/lesspipe %s %s bfd445f7 0xbfd44294
env[24]RUNNING_UNDER_GDM=yes bfd445f7 0xbfd44298
env[25]COLORTERM=gnome-terminal bfd445f7 0xbfd4429c
env[26]XAUTHORITY=/var/run/gdm/auth-for-ubuntu-Za0Xwx/database bfd445f7 0xbfd442a0
env[27]_=./main bfd445f7 0xbfd442a4
env[28]OLDPWD=/home/ubuntu bfd445f7 0xbfd442a8
001 0xbfd4411e 48 45 52 45 5f 49 53 5f 53 54 41 52 54 00 00 f0 HERE_IS_START???
002 0xbfd4412e fc e2 35 ad 28 00 f4 7f 3b 00 00 00 00 00 00 00 ??5?(???;???????
003 0xbfd4413e 00 00 60 8d 04 08 00 00 00 00 c8 41 d4 bf 37 1e ??`????????A??7?
004 0xbfd4414e 27 00 04 00 00 00 f4 41 d4 bf 08 42 d4 bf 14 44 '??????A???B???D
005 0xbfd4415e 85 00 ff ff ff ff f4 9f b7 00 f4 84 04 08 01 00 ????????????????
006 0xbfd4416e 00 00 b0 41 d4 bf 31 aa b6 00 d0 aa b7 00 30 86 ???A??1???????0?
007 0xbfd4417e 8c b7 01 00 00 00 f4 7f 3b 00 00 00 00 00 00 00 ????????;???????
008 0xbfd4418e 00 00 c8 41 d4 bf c1 93 97 8b be ca 2e 6d 00 00 ???A????????.m??
009 0xbfd4419e 00 00 00 00 00 00 00 00 00 00 04 00 00 00 60 87 ??????????????`?
010 0xbfd441ae 04 08 00 00 00 00 40 0c b7 00 5b 1d 27 00 f4 9f ??????@???[?'???
011 0xbfd441be b7 00 04 00 00 00 60 87 04 08 00 00 00 00 81 87 ??????`?????????
012 0xbfd441ce 04 08 14 88 04 08 04 00 00 00 f4 41 d4 bf 60 8d ???????????A??`?
013 0xbfd441de 04 08 c0 8d 04 08 50 ba b6 00 ec 41 d4 bf 18 a9 ??????P????A????
014 0xbfd441ee b7 00 04 00 00 00 d1 45 d4 bf d8 45 d4 bf e2 45 ???????E???E???E
015 0xbfd441fe d4 bf ed 45 d4 bf 00 00 00 00 f7 45 d4 bf 19 46 ???E???????E???F
016 0xbfd4420e d4 bf 2c 46 d4 bf 37 46 d4 bf 47 46 d4 bf 96 46 ??,F??7F??GF???F
017 0xbfd4421e d4 bf a8 46 d4 bf d2 46 d4 bf f2 46 d4 bf fe 46 ???F???F???F???F
018 0xbfd4422e d4 bf ee 4b d4 bf 14 4c d4 bf 66 4c d4 bf 76 4c ???K???L??fL??vL
019 0xbfd4423e d4 bf a8 4c d4 bf d4 4c d4 bf 21 4d d4 bf 37 4d ???L???L??!M??7M
020 0xbfd4424e d4 bf 50 4d d4 bf 67 4d d4 bf 78 4d d4 bf 8d 4d ??PM??gM??xM???M
021 0xbfd4425e d4 bf c2 4d d4 bf e1 4d d4 bf fe 4d d4 bf 0f 4e ???M???M???M???N
022 0xbfd4426e d4 bf 17 4e d4 bf 29 4e d4 bf 3b 4e d4 bf 67 4e ???N??)N??;N??gN
023 0xbfd4427e d4 bf 76 4e d4 bf b3 4e d4 bf 15 4f d4 bf 35 4f ??vN???N???O??5O
024 0xbfd4428e d4 bf 42 4f d4 bf 4f 4f d4 bf 71 4f d4 bf 87 4f ??BO??OO??qO???O
025 0xbfd4429e d4 bf a0 4f d4 bf d8 4f d4 bf e1 4f d4 bf 00 00 ???O???O???O????
026 0xbfd442ae 00 00 20 00 00 00 14 44 85 00 21 00 00 00 00 40 ?? ????D??!????@
027 0xbfd442be 85 00 10 00 00 00 bf f3 8b 07 06 00 00 00 00 10 ????????????????
028 0xbfd442ce 00 00 11 00 00 00 64 00 00 00 03 00 00 00 34 80 ??????d???????4?
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030 0xbfd442ee 00 00 07 00 00 00 00 d0 b5 00 08 00 00 00 00 00 ????????????????
031 0xbfd442fe 00 00 09 00 00 00 60 87 04 08 0b 00 00 00 e7 03 ??????`?????????
032 0xbfd4430e 00 00 0c 00 00 00 e7 03 00 00 0d 00 00 00 e7 03 ????????????????
033 0xbfd4431e 00 00 0e 00 00 00 e7 03 00 00 17 00 00 00 00 00 ????????????????
034 0xbfd4432e 00 00 19 00 00 00 5b 43 d4 bf 1f 00 00 00 f5 4f ??????[C???????O
035 0xbfd4433e d4 bf 0f 00 00 00 6b 43 d4 bf 00 00 00 00 00 00 ??????kC????????
036 0xbfd4434e 00 00 00 00 00 00 00 00 00 00 00 00 00 f0 fc e2 ????????????????
037 0xbfd4435e 43 99 8a 11 5f 85 d2 1d 7b 09 fc 02 c6 69 36 38 C???_???{????i68
038 0xbfd4436e 36 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 6???????????????
039 0xbfd4437e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
040 0xbfd4438e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
041 0xbfd4439e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
042 0xbfd443ae 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
043 0xbfd443be 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
044 0xbfd443ce 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
045 0xbfd443de 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
046 0xbfd443ee 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
047 0xbfd443fe 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
048 0xbfd4440e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
049 0xbfd4441e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
050 0xbfd4442e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
051 0xbfd4443e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
052 0xbfd4444e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
053 0xbfd4445e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
054 0xbfd4446e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
055 0xbfd4447e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
056 0xbfd4448e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
057 0xbfd4449e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
058 0xbfd444ae 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
059 0xbfd444be 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
060 0xbfd444ce 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
061 0xbfd444de 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
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063 0xbfd444fe 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
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065 0xbfd4451e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
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067 0xbfd4453e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
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071 0xbfd4457e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
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073 0xbfd4459e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
074 0xbfd445ae 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
075 0xbfd445be 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ????????????????
076 0xbfd445ce 00 00 00 2e 2f 6d 61 69 6e 00 66 69 72 73 74 5f ???./main?first_
077 0xbfd445de 61 72 67 00 73 65 63 6f 6e 64 5f 61 72 67 00 74 arg?second_arg?t
078 0xbfd445ee 68 69 72 64 5f 61 72 67 00 4f 52 42 49 54 5f 53 hird_arg?ORBIT_S
079 0xbfd445fe 4f 43 4b 45 54 44 49 52 3d 2f 74 6d 70 2f 6f 72 OCKETDIR=/tmp/or
080 0xbfd4460e 62 69 74 2d 75 62 75 6e 74 75 00 53 53 48 5f 41 bit-ubuntu?SSH_A
081 0xbfd4461e 47 45 4e 54 5f 50 49 44 3d 34 32 39 34 00 54 45 GENT_PID=4294?TE
082 0xbfd4462e 52 4d 3d 78 74 65 72 6d 00 53 48 45 4c 4c 3d 2f RM=xterm?SHELL=/
083 0xbfd4463e 62 69 6e 2f 62 61 73 68 00 58 44 47 5f 53 45 53 bin/bash?XDG_SES
084 0xbfd4464e 53 49 4f 4e 5f 43 4f 4f 4b 49 45 3d 62 31 36 64 SION_COOKIE=b16d
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088 0xbfd4468e 38 39 34 31 38 36 34 00 57 49 4e 44 4f 57 49 44 8941864?WINDOWID
089 0xbfd4469e 3d 36 30 38 31 37 34 34 34 00 47 4e 4f 4d 45 5f =60817444?GNOME_
090 0xbfd446ae 4b 45 59 52 49 4e 47 5f 43 4f 4e 54 52 4f 4c 3d KEYRING_CONTROL=
091 0xbfd446be 2f 74 6d 70 2f 6b 65 79 72 69 6e 67 2d 50 46 39 /tmp/keyring-PF9
092 0xbfd446ce 63 57 71 00 47 54 4b 5f 4d 4f 44 55 4c 45 53 3d cWq?GTK_MODULES=
093 0xbfd446de 63 61 6e 62 65 72 72 61 2d 67 74 6b 2d 6d 6f 64 canberra-gtk-mod
094 0xbfd446ee 75 6c 65 00 55 53 45 52 3d 75 62 75 6e 74 75 00 ule?USER=ubuntu?
095 0xbfd446fe 4c 53 5f 43 4f 4c 4f 52 53 3d 72 73 3d 30 3a 64 LS_COLORS=rs=0:d
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120 0xbfd4488e 65 62 3d 30 31 3b 33 31 3a 2a 2e 72 70 6d 3d 30 eb=01;31:*.rpm=0
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133 0xbfd4495e 31 3b 33 35 3a 2a 2e 78 70 6d 3d 30 31 3b 33 35 1;35:*.xpm=01;35
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138 0xbfd449ae 2e 6d 6e 67 3d 30 31 3b 33 35 3a 2a 2e 70 63 78 .mng=01;35:*.pcx
139 0xbfd449be 3d 30 31 3b 33 35 3a 2a 2e 6d 6f 76 3d 30 31 3b =01;35:*.mov=01;
140 0xbfd449ce 33 35 3a 2a 2e 6d 70 67 3d 30 31 3b 33 35 3a 2a 35:*.mpg=01;35:*
141 0xbfd449de 2e 6d 70 65 67 3d 30 31 3b 33 35 3a 2a 2e 6d 32 .mpeg=01;35:*.m2
142 0xbfd449ee 76 3d 30 31 3b 33 35 3a 2a 2e 6d 6b 76 3d 30 31 v=01;35:*.mkv=01
143 0xbfd449fe 3b 33 35 3a 2a 2e 6f 67 6d 3d 30 31 3b 33 35 3a ;35:*.ogm=01;35:
144 0xbfd44a0e 2a 2e 6d 70 34 3d 30 31 3b 33 35 3a 2a 2e 6d 34 *.mp4=01;35:*.m4
145 0xbfd44a1e 76 3d 30 31 3b 33 35 3a 2a 2e 6d 70 34 76 3d 30 v=01;35:*.mp4v=0
146 0xbfd44a2e 31 3b 33 35 3a 2a 2e 76 6f 62 3d 30 31 3b 33 35 1;35:*.vob=01;35
147 0xbfd44a3e 3a 2a 2e 71 74 3d 30 31 3b 33 35 3a 2a 2e 6e 75 :*.qt=01;35:*.nu
148 0xbfd44a4e 76 3d 30 31 3b 33 35 3a 2a 2e 77 6d 76 3d 30 31 v=01;35:*.wmv=01
149 0xbfd44a5e 3b 33 35 3a 2a 2e 61 73 66 3d 30 31 3b 33 35 3a ;35:*.asf=01;35:
150 0xbfd44a6e 2a 2e 72 6d 3d 30 31 3b 33 35 3a 2a 2e 72 6d 76 *.rm=01;35:*.rmv
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206 0xbfd44dee 5f 50 52 4f 46 49 4c 45 3d 75 62 75 6e 74 75 00 _PROFILE=ubuntu?
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209 0xbfd44e1e 6f 6d 65 2f 75 62 75 6e 74 75 00 4c 41 4e 47 55 ome/ubuntu?LANGU
210 0xbfd44e2e 41 47 45 3d 65 6e 5f 55 53 3a 65 6e 00 47 4e 4f AGE=en_US:en?GNO
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214 0xbfd44e6e 3d 75 62 75 6e 74 75 00 58 44 47 5f 44 41 54 41 =ubuntu?XDG_DATA
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221 0xbfd44ede 2f 64 62 75 73 2d 44 54 62 6e 31 48 4e 5a 46 55 /dbus-DTbn1HNZFU
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226 0xbfd44f2e 69 70 65 20 25 73 00 57 49 4e 44 4f 57 50 41 54 ipe %s?WINDOWPAT
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228 0xbfd44f4e 00 4c 45 53 53 43 4c 4f 53 45 3d 2f 75 73 72 2f ?LESSCLOSE=/usr/
229 0xbfd44f5e 62 69 6e 2f 6c 65 73 73 70 69 70 65 20 25 73 20 bin/lesspipe %s
230 0xbfd44f6e 25 73 00 52 55 4e 4e 49 4e 47 5f 55 4e 44 45 52 %s?RUNNING_UNDER
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232 0xbfd44f8e 52 4d 3d 67 6e 6f 6d 65 2d 74 65 72 6d 69 6e 61 RM=gnome-termina
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234 0xbfd44fae 72 2f 72 75 6e 2f 67 64 6d 2f 61 75 74 68 2d 66 r/run/gdm/auth-f
235 0xbfd44fbe 6f 72 2d 75 62 75 6e 74 75 2d 5a 61 30 58 77 78 or-ubuntu-Za0Xwx
236 0xbfd44fce 2f 64 61 74 61 62 61 73 65 00 5f 3d 2e 2f 6d 61 /database?_=./ma
237 0xbfd44fde 69 6e 00 4f 4c 44 50 57 44 3d 2f 68 6f 6d 65 2f in?OLDPWD=/home/
238 0xbfd44fee 75 62 75 6e 74 75 00 2e 2f 6d 61 69 6e 00 00 00 ubuntu?./main???
239 0xbfd44ffe 00 00 Segmentation fault (core dumped)
目前，我已经想出了以下事项（从第001行开始）：
我有两个问题：
供参考，这是我正在使用的代码：
#include <iostream>
#include <locale>
#include <unistd.h>
int main(int argc, char* argv[], char* env[]) {
char tekst[] = "HERE_IS_START";
for (int i = 0; i < argc; i++) {
std::cout << "argv[" << i << "]" << argv[i] << " " << std::hex <<
(int) argv[i] << " " << &argv[i] << std::endl;
}
int z = 0;
for (char** env_ = env; *env_ != 0; env_++) {
std::cout << "env[" << z++ << "]" << *env_ << " " << std::hex <<
(int) *env << " " << &(*env_) << std::endl;
}
int row = 16;
char* wsk = tekst;
for (int i = 0;; i++) {
if (i + 1 < 10)std::cout << 0;
if (i + 1 < 100)std::cout << 0;
std::cout << std::dec << (i + 1) << " 0x" << std::hex << (int) wsk << " ";
for (int j = 0; j < row; j++) {
if ((unsigned int) (unsigned char) (wsk[j]) < 16)
std::cout << 0;
std::cout << (unsigned int) (unsigned char) (wsk[j]) <<
" " << std::flush;
}
for (int j = 0; j < row; j++) {
if (isprint((char) (wsk[j])))
std::cout << (char) (wsk[j]);
else
std::cout << '?';
}
std::cout << std::endl;
wsk = wsk + row;
}
return 0;
}
该程序在Ubuntu 11.04中编译和测试。
答案 0 :(得分：1)
您如何期望突破for循环？您没有给它重复条件，并且您在循环内的任何位置都没有明确的break或return。据推测，这种分段错误是由于超过堆栈末尾进入你不允许访问的内存造成的。
答案 1 :(得分：0)
在main启动之前，有两件事会把东西放在堆栈上：操作系统本身，以及编译器生成的运行时库和启动代码。您不应该直接使用任何此类信息，因此通常不会记录。