从zabbix里面摘出来的c语言数组，很经典
/* * strarray.cpp * * Created on: 2017年1月18日 * Author: yangling */ #include "../../include/types.h" #include "../../include/defs.h" #include "../../include/common.h" /****************************************************************************** * * * Function: str_strarr_init * * * * Purpose: initialize dynamic string array * * * * Parameters: arr - a pointer to array of strings * * * * Return value: * * * * Author: Vladimir Levijev * * * * Comments: allocates memory, calls assert() if that fails * * * ******************************************************************************/ void str_strarr_init(char ***arr) { *arr = (char **)ext_malloc(*arr, sizeof(char *)); **arr = NULL; } /****************************************************************************** * * * Function: str_strarr_add * * * * Purpose: add a string to dynamic string array * * * * Parameters: arr - a pointer to array of strings * * entry - string to add * * * * Return value: * * * * Author: Vladimir Levijev * * * * Comments: allocates memory, calls assert() if that fails * * * ******************************************************************************/ void str_strarr_add(char ***arr, const char *entry) { int i; assert(entry); for (i = 0; NULL != (*arr)[i]; i++) ; *arr = (char **)ext_realloc(*arr, sizeof(char *) * (i + 2)); (*arr)[i] = ext_strdup((*arr)[i], entry); (*arr)[++i] = NULL; } /****************************************************************************** * * * Function: str_strarr_free * * * * Purpose: free dynamic string array memory * * * * Parameters: arr - array of strings * * * * Return value: * * * * Author: Vladimir Levijev * * * ******************************************************************************/ void str_strarr_free(char **arr) { char **p; for (p = arr; NULL != *p; p++) { ext_free(*p); } ext_free(arr); }