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diff --git a/reference/C/CONCEPT/precedence.html b/reference/C/CONCEPT/precedence.html new file mode 100644 index 0000000..71c7d81 --- /dev/null +++ b/reference/C/CONCEPT/precedence.html @@ -0,0 +1,376 @@ +<title>Operator Precedence</title> +<head> + +</head> + +<body bgcolor="#ffffcc"> +<hr> +<center><h1>Operator Precedence</h1></center> +<hr> + + +The following tables show the order in which operators are evaluated. +Please note the following. + +<ul> +<li>The order in which the operands are evaluated is not specified in +the ANSII standard. + +<li>For readability you should not rely on these rules! Put everything +in brackets so you intension is clear to the compiler and other +programmers. +</ul> + +<dl compact> + +<dt><img src="../../GRAPHICS/whiteball.gif" width=26 height=14 alt="o" name="summary"> +<a href="#summary">Summary table.</a> + +<dt><img src="../../GRAPHICS/whiteball.gif" width=26 height=14 alt="o" name="detail"> +<a href="#detail">Table in detail.</a> + +<dt><img src="../../GRAPHICS/whiteball.gif" width=26 height=14 alt="o" name="ops"> +<a href="expressions.html">Operators listed by type.</a> +</dl> + +<hr> + +<a name=summary> +<h2>Summary precedence table.</h2> + +All operators on the same line have the same precedence. +The first line has the highest precedence. +<p> +<center> +<table border=1 center=4 bgcolor=ivory bgcolor=ivory> + +<tr align=center><td> () </td><td> [] </td><td> -> </td><td> . </td></tr> +<tr align=center><td> ! </td><td> ~ </td><td> ++ </td><td> -- </td><td> + </td> + <td> - </td><td> * </td><td> & </td><td> sizeof </td> </tr> +<tr align=center><td> * </td><td> / </td><td> % </td></tr> +<tr align=center><td> + </td><td> - </td></tr> +<tr align=center><td> << </td><td> >> </td></tr> +<tr align=center><td> < </td><td> <= </td><td> >= </td><td> > </td></tr> +<tr align=center><td> == </td><td> != </td></tr> +<tr align=center><td> & </td></tr> +<tr align=center><td> ^ </td></tr> +<tr align=center><td> | </td></tr> +<tr align=center><td> && </td></tr> +<tr align=center><td> || </td></tr> +<tr align=center><td> ?: </td></tr> +<tr align=center><td> = </td><td> += </td><td> -= </td><td> *= </td><td> /= </td> + <td> %= </td><td> &= </td><td> ^= </td><td> |= </td><td> <<= </td> + <td> >>= </td></tr> +<tr align=center><td> , </td></tr> +</table> +</center> +<p> +<i> +Lary Huang has told me that the </i><b>postfix unary --</b><i> and +</i><b>postfix unary ++</b><i> have a +higher precedence than the </i><b>prefix unary --</b><i> and +</i><b>prefix unary ++</b><i>. +</i> +<hr> + +<a name=detail> +<h2>Detailed precedence table.</h2> + +All operators in the same 'block' have the same precedence. The first block +has the +highest precedence. +<p> + +<center> +<table border=1 bgcolor=ivory> +<th>Group</th><th>Operator</th><th>Description</th><th>Example</th> +<tr> +<td> +Membership. +</td> +</tr> + +<tr align=center> +<td></td><td>()</td><td><a href="../SYNTAX/functions.html">Function call.</a></td><td>count = function(4,3);</td> +</tr> + +<tr align=center> +<td></td><td>[]</td><td><a href="arrays.html">Array.</a></td><td>value = array[5] + increment;</td> +</tr> + +<tr align=center> +<td></td><td>-></td><td><a href="../SYNTAX/struct.html#pointers">Structure pointer.</a></td> +</tr> + +<tr align=center> +<td></td><td> .</td><td><a href="../SYNTAX/struct.html#membership">Structure member.</a></td> +</tr> + +<tr align=center> +<td> +Unary. +</td> +</tr> + +<tr align=center> +<td></td><td>!</td><td><a href="../SYNTAX/logical.html#NOT">Logical NOT</a></td> +</tr> + +<tr align=center> +<td></td><td>~ </td><td> </td> +</tr> + +<tr align=center> +<td></td><td>++</td><td><a href="inc_dec.html">Increment.</a></td> +</tr> + +<tr align=center> +<td></td><td>--</td><td><a href="inc_dec.html">Decrement.</a></td> +</tr> + +<tr align=center> +<td></td><td>+ </td><td></td> +</tr> + +<tr align=center> +<td></td><td>- </td> +</tr> + +<tr align=center> +<td></td><td>*</td><td><a href="../EXAMPLES/address.c">Pointer to data</a></td> +</tr> + +<tr align=center> +<td></td><td>&</td><td><a href="../EXAMPLES/address.c">Address of a variable.</a></td> +</tr> + +<tr align=center> +<td></td><td>sizeof</td> +</tr> + +<tr align=center> +<td></td><td>(type)</td><td><a href="cast.html">type cast.</a></td> +</tr> + +<tr align=center> +<td> +Binary. +</td> + +<tr align=center> +<td></td><td>* </td><td>Multiply.</td> +</tr> + +<tr align=center> +<td></td><td>/ </td><td>Divide.</td> +</tr> + +<tr align=center> +<td></td><td>% </td><td><a href="../EXAMPLES/modulo.c">Modulo.</a></td> +</tr> + +<tr align=center> +<td> +Binary. +</td> +</tr> + +<tr align=center> +<td></td><td>+ </td><td>Addition</td> +</tr> + +<tr align=center> +<td></td><td>- </td><td>Subtraction.</td> +</tr> + +<tr align=center> +<td> +Bitwise +</td> +</tr> + +<tr align=center> +<td></td><td><< </td><td><a href="bit_shift.html">Shift left.</a></td> +</tr> + +<tr align=center> +<td></td><td>>> </td><td><a href="bit_shift.html">Shift Right.</a></td> +</tr> + +<tr align=center> +<td> +Relational. +</td> +</tr> + +<tr align=center> +<td></td><td>< </td><td>Less than.</td> +</tr> + +<tr align=center> +<td></td><td>> </td><td>Greater than.</td> +</tr> + +<tr align=center> +<td></td><td><= </td><td>Less than or equal too.</td> +</tr> + +<tr align=center> +<td></td><td>>= </td><td>Greater than or equal too.</td> +</tr> + +<tr align=center> +<td></td><td>== </td><td>Equal too.</td> +</tr> + +<tr align=center> +<td></td><td>!= </td><td>Not equal too.</td> +</tr> + +<tr align=center> +<td> +More Bitwise +</td> +</tr> + +<tr align=center> +<td></td><td>& </td><td><a href="../CONCEPT/bitwise.html">bitwise AND</a></td> +</tr> + +<tr align=center> +<td></td><td>^ </td><td><a href="../CONCEPT/bitwise.html">bitwise Excusive OR</a></td> +</tr> + +<tr align=center> +<td></td><td>| </td><td><a href="../CONCEPT/bitwise.html">bitwise OR</a></td> +</tr> + +<tr align=center> +<td> +Logical. +</td> +</tr> + +<tr align=center> +<td></td><td>&& </td><td><a href="../SYNTAX/logical.html#AND">Logical AND</a></td> +</tr> + +<tr align=center> +<td> +Logical. +</td> +</tr> + +<tr align=center> +<td></td><td>|| </td><td><a href="../SYNTAX/logical.html#OR">Logical OR</a></td> +</tr> +<tr align=center> +<td> +Conditional +</td> +</tr> + +<tr align=center> +<td></td><td>? : </td><td><a href="../SYNTAX/conditional.html">Conditional construct.</a></td> +</tr> + +<tr align=center> +<td> +Assignment +</td> +</tr> + +<tr align=center> +<td></td><td>= </td><td><a href="assignment.html">Equals</a></td> +</tr> + +<tr align=center> +<td></td><td>+= </td><td><a href="assignment.html">assignment</a></td> +</tr> + +<tr align=center> +<td></td><td>-= </td><td><a href="assignment.html">assignment</a></td> +</tr> + +<tr align=center> +<td></td><td>*= </td><td><a href="assignment.html">assignment</a></td> +</tr> + +<tr align=center> +<td></td><td>/= </td><td><a href="assignment.html">assignment</a></td> +</tr> + +<tr align=center> +<td></td><td>%= </td><td><a href="assignment.html">assignment</a></td> +</tr> + +<tr align=center> +<td></td><td>&= </td><td><a href="assignment.html">assignment</a></td> +</tr> + +<tr align=center> +<td></td><td>^= </td><td><a href="assignment.html">assignment</a></td> +</tr> + +<tr align=center> +<td></td><td>|= </td><td><a href="assignment.html">assignment</a></td> +</tr> + +<tr align=center> +<td></td><td><<= </td><td><a href="assignment.html">assignment</a></td> +</tr> + +<tr align=center> +<td></td><td>>>= </td><td><a href="assignment.html">assignment</a></td> +</tr> + +<tr align=center> +<td> +Series +</td> +</tr> + +<tr align=center> +<td></td><td>, </td><td><a href="../SYNTAX/comma.html">Comma</a></td> +</tr> +</table> +</center> + +<p> +<hr> +<h2>See also:</h2> + +<img src="../../GRAPHICS/whiteball.gif" width=26 height=14 alt="o" name="exp"> +<a href="expressions.html#bit">Expressions and operators.</a> +<br> +<img src="../../GRAPHICS/whiteball.gif" width=26 height=14 alt="o" name="ass"> +<a href="../CONCEPT/assignment.html">Assignment Operators.</a> +<br> + + +<p> + +<hr> +<p> +<center> +<table border=2 width="80%" bgcolor="ivory"> +<tr align=center> +<td width="25%"> +<a href="../cref.html"> Top</a> +</td><td width="25%"> +<a href="../master_index.html"> Master Index</a> +</td><td width="25%"> +<a href="../SYNTAX/keywords.html"> Keywords</a> +</td><td width="25%"> +<a href="../FUNCTIONS/funcref.htm"> Functions</a> +</td> +</tr> +</table> +</center> +<p> +<hr> +<address>Martin Leslie +</address><p> +</body> +</html> + |