This code finds the next word in the string.
For example
given an input of " my cake"
the function should return "my cake"
. as the expected output
If I use return
then the output is (null), but I use printf
then the code works
I would like to know how to get the expected output using return.
#include <stdio.h>
int main()
{
char* str[1000];
printf("enter:");
fgets(str,1000,stdin);
printf("%s",find_word_start(str));
}
char* find_word_start(char* str){
char* result[1000];
int c = 0, d = 0;
while(str[c] ==' ') {
c++;
}
while(str[c] != '\0'){
result[d++] = str[c++];
if(str[c]==' ') {
result[d++] = str[c++];
}
while(str[c]==' ') { //
c++;
}
}
result[d] = '\0';
//print or return char?
return result;
}
The following line allocates memory space in the stack but after the function ends everything is gone:
char result[1000];
You need to allocate memory in the heap like that:
char *result = malloc(sizeof(char) *1000);
Note: don't forget to free that memory space by free
function.
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