Thread: Program to convert spaces to newlines doesn't compile

This is my whole file that I'm trying to compile:

Code:

#include <stdio.h>


static int MAXIM = 100;


void main() {
  char sentence[MAXIM];
  printf("Your sentence?: ");
  scanf("%s", sentence);


  printf("\n");
  
  for( int i = 0  ; i == MAXIM ; i++ ) {
    char ch = sentence[i];
    if (ch = " ")
      printf("\n");
    else
      printf("%c", ch);
  }
}

Running that through GCC will

Code:

stuff.c In function `main':
space.c:14:12: warning: assignment to `char' from `char *' makes integer from pointer without a cast [-Wint-conversion]
   14 |     if (ch = " ")
      |            ^

What'd I do wrong?

Two things in this line:

Code:

if (ch = " ")

First, a space within quotes is treated as a C-string (char *). That's the meaning behind the error. You need to use single quotes for a character.
Second, you are not comparing in that statement, you are assigning (as the error says). = for assignment, == for comparison.

Originally Posted by rags_to_riches

Two things in this line:

Code:

if (ch = " ")

First, a space within quotes is treated as a C-string (char *). That's the meaning behind the error. You need to use single quotes for a character.
Second, you are not comparing in that statement, you are assigning (as the error says). = for assignment, == for comparison.

Turns out it wasn't just any old error; it was a stupid error.

The program now compiles, but doesn't print the sentence. It doesn't even print the appropriate newlines.

Your: for( int i = 0 ; i == MAXIM ; i++ )
Better could be:
for( int i = 0 ; i < MAXIM ; i++ )