C++动态内存分配方法

C++动态内存分配方法

#include <stdio.h> #include <string.h> #include <stdlib.h>

char* upcase(char *inputstring);                                                                                                                int main(void){     char *str1;     str1 = upcase("hello");     printf("str1=%s \n",str1);     free(str1);     return 0; }

char* upcase(char *inputstring) {     char *newstring;     int counter;

    if(!(newstring=malloc(strlen(inputstring)+5)))     {           printf("Error malloc !\n");         exit(1);     }  

    strcpy(newstring,inputstring);     for(counter =0; counter < strlen(newstring); counter++){         if(newstring[counter] >= 97 && newstring[counter] <=122)         {               newstring[counter] -= 32;         }       }  

    return newstring;

}