Hi,
I am currently working my way through Learn Objective C on the Mac,
and have typed one of the code samples into Xcode (ver 3.2), however
Xcode gives me a compile error, I think I have typed the code letter
for letter, so I was just wondering if someone could tell me why the
following code will not compile?
#import <Foundation/Foundation.h>
typedef enum {
kCircle,
kRectange,
kOblateSpheroid
} ShapeType;
typedef enum {
kRedColor,
kGreenColor,
kBlueColor
} ShapeColor;
typedef struct {
int x, y, width, height;
} ShapeRect;
typedef struct{
ShapeType type;
ShapeColor fillColor;
ShapeRect bounds;
} Shape;
int main (int argc, const char * argv[]) {
Shape shapes[3];
ShapeRect rect0 = {0, 0, 10, 30};
shapes[0].type = kCircle;
shapes[0].fillColor = kRedColor;
shapes[0].bounds = rect0;
ShapeRect rect1 = {30, 40, 50, 60};
shapes[1].type = kRectange;
shapes[1].fillColor = kGreenColor;
shapes[1].bounds = rect1;
ShapeRect rect2 = {15, 18, 37, 29};
shapes[2].type = kOblateSpheroid;
shapes[2].fillColor = kBlueColor;
shapes[2].bounds = rect2;
drawShapes(shapes, 3);
return(0);
}// main
void drawShapes(Shape shapes[], int count){
int i;
for(i = 0; i< count; i++){
switch(shapes[i].type){
case kCircle:
drawCircle(shapes[i].bounds,
shapes[i].fillColor);
break;
case kRectange:
drawRectangle(shapes[i].bounds,
shapes[i].fillColor);
break;
case kOblateSpheroid:
drawEgg(shapes[i].bounds, shapes[i].fillColor);
break;
}
}
} // drawShapes
void drawCircle (ShapeRect bounds, ShapeColor fillColor){
NSLog(@"drawing a circle at (%d %d %d %d) int %@", bounds.x,
bounds.y, bounds.width, bounds.height, colorName(fillColor));
} // drawCircle
void drawRectangle (ShapeRect bounds, ShapeColor fillColor){
NSLog(@"drawing a rectangle at (%d %d %d %d) int %@", bounds.x,
bounds.y, bounds.width, bounds.height, colorName(fillColor));
} // drawRectangle
void drawEgg (ShapeRect bounds, ShapeColor fillColor){
NSLog(@"drawing a egg at (%d %d %d %d) int %@", bounds.x, bounds.y,
bounds.width, bounds.height, colorName(fillColor));
} // drawEgg
NSString* colorName(ShapeColor colName){
switch (colName) {
case kRedColor:
return @"red";
break;
case kGreenColor:
return @"green";
break;
case kBlueColor:
return @"blue";
break;
}
return @"No clue";
}// colorName
The error i get is:
"Conflicting types for 'colorName'
Kind Regards
Mick Walker
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