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Part of the "Chess in C" blog post series. Asking the user for the row and column of a chess piece. Intentionally contains a bug where the second question is asked even if the first question hasn't been answered correctly.
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| /* Print and ask for the row number */ | |
| printf("\nRow? (0..7): "); | |
| /* Get some input */ | |
| if (fgets(input, sizeof(input), stdin)) { | |
| /* Make sure it's a number! */ | |
| if (sscanf(input, "%d", &pieceRow)) { | |
| /* Make sure it's between 0 and 7! */ | |
| if (pieceRow >= 0 && pieceRow <= 7) { | |
| /* If you got here, congratulations. It's valid input. */ | |
| printf("You've entered %i", pieceRow); | |
| } else { | |
| /* It wasn't between 0 and 7! */ | |
| printf("ERROR: Not between 0 and 7"); | |
| } | |
| } else { | |
| /* It wasn't a number! */ | |
| printf("ERROR: Not a number"); | |
| } | |
| } | |
| /* Print and ask for the column number */ | |
| printf("\nColumn? (0..7): "); | |
| /* Get some input */ | |
| if (fgets(input, sizeof(input), stdin)) { | |
| /* Make sure it's a number! */ | |
| if (sscanf(input, "%i", &pieceColumn)) { | |
| /* Make sure it's between 0 and 7! */ | |
| if (pieceColumn >= 0 && pieceColumn <= 7) { | |
| /* If you got here, congratulations. It's valid input. */ | |
| printf("You've entered %i", pieceColumn); | |
| } else { | |
| /* It wasn't between 0 and 7! */ | |
| printf("ERROR: Not between 0 and 7"); | |
| } | |
| } else { | |
| /* It wasn't a number! */ | |
| printf("ERROR: Not a number"); | |
| } | |
| } |
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