Fix 2006/stewart - check if FILE * == NULL

2006/stewart/README.md

@@ -10,17 +10,6 @@ make
 ```
 
 
-### Bugs and (Mis)features
-
-The current status of this entry is:
-
-```
-STATUS: known bug - please help us fix
-```
-
-For more detailed information see [2006 stewart in bugs.md](/bugs.md#2006-stewart).
-
-
 ## To use:
 
 ```sh
@@ -48,11 +37,6 @@ where `FILE` is one of:
         spirals4 squares stars stars2 tree tree2 tree3 tree4 triangle
 
 
-### INABIAF - it's not a bug it's a feature! :-)
-
-This program will very likely crash or do something funny if the file does not
-exist or cannot be opened.
-
 ## Judges' remarks:
 
 Note the interesting choice of using a `#define` in the output.

2006/stewart/stewart.c

@@ -20,6 +20,7 @@ int main(int c,char**o)
    Z(v,6)=(long)malloc(Z(v,0));
    memset((void*)Z(v,6),0,Z(v,0));
    Z(v,13)=(long)fopen(o[3],"r");
+   if(F(v,13)==NULL)P("file doesn't exist\n"), exit(1);
    fscanf(F(v,13),"%ld",(long*)Y(v,3));
    Z(v,8)=(long)malloc(050+Z(v,3)*070);
    Z(Z(v,8),0)=Z(v,3);

thanks-for-fixes.md

@@ -2154,6 +2154,11 @@ Since the author suggested that the lack of certain `#include`s might break the
 program in some systems he added `-include ...` to the Makefile as well.
 
 
+## [2006/stewart](2006/stewart/stewart.c) ([README.md](2006/stewart/README.md]))
+
+Cody fixed it so that if the file cannot be opened it exits rather than trying
+to read from the file.
+
 ## [2006/toledo2](2006/toledo2/toledo2.c) ([README.md](2006/toledo2/README.md]))
 
 Cody fixed a segfault in this program which was making it fail to work under