正确用法：
int n = 6; char **argsmy = new char *[n]; int maxlen = 600; for(int i = 0; i < n; i ++) { argsmy[i] = new char [maxlen];// args[i]; } strcpy_s(argsmy[1],maxlen,"e"); strcpy_s(argsmy[2],maxlen,"Lzma_"); strcat_s(argsmy[2], 600, cTAppEncTop.getBitstreamFile()); strcpy_s(argsmy[3],maxlen,"-BS12"); strcpy_s(argsmy[4],maxlen,"-CN0"); strcpy_s(argsmy[5],maxlen,"-d15");
错误用法：
argsmy[2] = "Lzma_"; strcpy_s(argsmy[2],maxlen,"see");
原因：
argsmy[2] = "Lzma_"; //因为 argsmy[2] 是个指针。他指向一块分配的空间 ，长度 maxlen。
而这样赋值后，指针指向位置变了。而再strcpy_s(argsmy[2],maxlen,"see"); 实际上是将常数变量空间强制赋值。因此出问题。
strcpy_s 用法：
errno_t strcpy_s( char *strDestination, size_t numberOfElements, const char *strSource ); template <size_t size> errno_t strcpy_s( char (&strDestination)[size], const char *strSource ); // C++ only 例子：
C/C++ code // crt_strcpy_s.cpp // This program uses strcpy_s and strcat_s // to build a phrase. // #include < string .h > #include < stdlib.h > #include < stdio.h > #include < errno.h > int main( void ) { char string [ 80 ]; // using template versions of strcpy_s and strcat_s: strcpy_s( string , " Hello world from " ); strcat_s( string , " strcpy_s " ); strcat_s( string , " and " ); // of course we can supply the size explicitly if we want to: strcat_s( string , _countof( string ), " strcat_s! " ); printf( " String = %s/n " , string ); }