how do i copy a string for my code.
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#include <stdlib.h>
#include <strings.h>
#define initial_size 5
void reverseChar(char* str);
char* IncreaseArray(char *oldArray, int OldSize, int NewSize);
int main(int argc, const char * argv[]) {
char *str1 = NULL;
char *str2 = str1; //my attempt
char c;
int CurSize = 0;
int ArraySize = 0;
printf("Please Enter a String: ");
do{
scanf("%c", &c);
if (c != 10 && c != 13){
if (CurSize >= ArraySize){
str1 = IncreaseArray(str1, ArraySize, ArraySize + initial_size);
ArraySize = ArraySize + initial_size;
}
str1[CurSize] = c;
}
else
str1[CurSize] = '\0';
CurSize++;
} while (c != 10 && c != 13);
reverseChar(str1);
printf("string Entered: %s\n", str2); //my attempt
printf("Reversed String: %s\n", str1);
return 0;
}
void reverseChar(char* str)
{
for (int i = 0; i<strlen(str) / 2; i++)
{
char temp = str[i];
str[i] = str[strlen(str)-i - 1];
str[strlen(str)-i - 1] = temp;
}
}
char* IncreaseArray(char *oldArray, int OldSize, int NewSize){
char *NewArray = NULL;
NewArray = (char*)malloc(NewSize * sizeof(char)); //allocates memory
for (int i = 0; i < OldSize; i++) //copies old array
NewArray[i] = oldArray[i];
free(oldArray); //releases old array's memory
return NewArray; //return new array
}
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Last edited on