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// Player A's play has been read from fileA and Player B's
// play has been read from fileB
// && IF both plays are legal
// legal == TRUE
// && playForA == PlayType equivalent of Player A's play
// char
// && playForB == PlayType equivalent of Player B's play
// char
// ELSE
// legal == FALSE
// && playForA and playForB are undefined
{
char charForA; // Player A's input
char charForB; // Player B's input
fileA >> charForA; // Skip whitespace, including newline
fileB >> charForB;
if ( !fileA || !fileB)
return;
legal = (charForA==R || CharForA==P || charForA==S) &&
(charForB==R || charForB==P || charForB==S);
if (legal)
{
playForA = ConversionVal(charForA);
playForB = ConversionVal(charForB);
}
}
//*****************************************************************
PlayType ConversionVal( /* in */ char someChar ) // Play character
// Converts a character into an associated value of PlayType
// Precondition:
// someChar == R or P or S
// Postcondition:
// Function value == ROCK, if someChar == R
// == PAPER, if someChar == P
// == SCISSORS, if someChar == S
{
switch (someChar)
{
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