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C FAQ

错误处理​

  • errno, perror, strerror
#include <errno.h>
extern int errno ;

exit(EXIT_FAILURE);
exit(EXIT_SUCCESS);

fseek(fp,0,SEEK_END) EINVAL Invalid argument​

stackdump​

gdb test.exe.stackdump

gdb error while loading shared libraries​

set environment LD_LIBRARY_PATH /path/to/debug

ModuleNotFoundError: No module named 'libstdcxx'​

msys gdb

SIGABRT​

  • malloc 申请失败可能触发 abort
  • free 失败可能触发 abort