Write a C program to reverse the words in a sentence in place.

#include

void rev(char *l, char *r);

int main(int argc, char *argv[])
{
char buf[] = "the world will go on forever";
char *end, *x, *y;

// Reverse the whole sentence first..
for(end=buf; *end; end++);
rev(buf,end-1);

// Now swap each word within sentence...
x = buf-1;
y = buf;

while(x++ < end)
{
if(*x == '' || *x == ' ')
{
rev(y,x-1);
y = x+1;
}
}

// Now print the final string....
printf("%s\n",buf);

return(0);
}

// Function to reverse a string in place...
void rev(char *l,char *r)
{
char t;
while(l{
t = *l;
*l++ = *r;
*r-- = t;
}
}