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| -rw-r--r-- | dev/c/datatypes.html | 107 | ||||
| -rw-r--r-- | dev/index.html | 2 |
2 files changed, 107 insertions, 2 deletions
diff --git a/dev/c/datatypes.html b/dev/c/datatypes.html index 6d6b76d..a149c24 100644 --- a/dev/c/datatypes.html +++ b/dev/c/datatypes.html @@ -12,12 +12,117 @@ <h2 id="datatypes">Data types</h2> <h2 id="int">Integer</h2> + <p>Allowed <a href="elements.html#types">types</a> are char and int;</p> + <dl> + <dt>signed char</dt> + <dd>8 bit, from -128 to 127.</dd> + <dt>unsigned char</dt> + <dd>8 bit, from 0 to 255.</dd> + <dt>char</dt> + <dd>8 bit, used to store ASCII, ex; 'h', '\n', etc...</dd> + <dt>short int</dt> + <dd>16 bit, from -32,768 to 32,767.</dd> + <dt>unsigned short int</dt> + <dd>16 bit, from 0 to 65,535.</dd> + <dt>int</dt> + <dd>32 bit, from -2,147,483,648 to 2,147,483,647.</dd> + <dt>unsigned int</dt> + <dd>32 bit, from 0 to 4,294,967,295.</dd> + <dt>long int</dt> + <dd>32 bit, from -2,147,483,648 to 2,147,483,647.</dd> + <dt>unsigned long int</dt> + <dd>32 bit, from 0 to 4,294,967,295.</dd> + <dt>long long int</dt> + <dd>64 bit, from 9,223,372,036,854,775,808 + to 9,223,372,036,854,775,807.</dd> + <dt>unsigned long long int</dt> + <dd>64 bit, from 0 to 18,446,744,073,709,551,615.</dd> + </dl> + <h2 id="double">Real number</h2> + + <p>Real numbers are fractional numbers, all floating points + are signed. Check float.h.</p> + + <dl> + <dt>float</dt> + <dd>From 1e-37 to 1e37</dd> + <dt>double</dt> + <dd>Largest of floating point.</dd> + <dt>long double</dt> + <dd>The long double data maybe larger than double</dd> + </dl> + <h2 id="complex">Complex number</h2> - <h2 id="const">Enumeration</h2> + + <p><a href="https://www.gnu.org/software/gnu-c-manual/gnu-c-manual.html#Standard-Complex-Number-Types">Complex Number Types</a></p> + + <h2 id="enum">Enumeration</h2> + + <pre> + enum colors {black, orange, blue} color; + enum colors color; + </pre> + <h2 id="union">Unions</h2> + + <pre> + union accounts { + int id; + float value; + } first_account, second_account; + </pre> + <h2 id="struct">Structures</h2> + + <pre> + struct point { + int x, y; + } first_point; + struct point second_point; + </pre> + <h2 id="array">Arrays</h2> + + <pre> + int account_array[9]; + int account_array[] = {0, 1, 2, 3}; + int account_array[] = {0, 1, 2, [9] = 9}; + </pre> + + <pre> + int account_array[2][9] { {1,2,3},{9,8,7} } + </pre> + + <p>Initializing string with individual characters the + null character must be defined;</p> + + <pre> + char black[] = {'b', 'l', 'a', 'c', 'k', '\0'} + </pre> + + <pre> + char black[] = "black"; + </pre> + + <pre> + union accounts { + int id; + float value; + }; + union accounts accounts_array[9]; + accounts_array[0].id = 8; + </pre> + + <pre> + struct point { + int x, y; + }; + struct point point_array[9]; + point_array[0].x=2; + point_array[0].y=3; + </pre> + <h2 id="pointer">Pointers</h2> <h2 id="it">Incomplete types</h2> <h2 id="tq">Type qualifiers</h2> diff --git a/dev/index.html b/dev/index.html index d84fa36..afd147e 100644 --- a/dev/index.html +++ b/dev/index.html @@ -62,7 +62,7 @@ <li><a href="c/datatypes.html#int">Integer</a></li> <li><a href="c/datatypes.html#double">Real number</a></li> <li><a href="c/datatypes.html#complex">Complex number</a></li> - <li><a href="c/datatypes.html#const">Enumeration</a></li> + <li><a href="c/datatypes.html#enum">Enumeration</a></li> <li><a href="c/datatypes.html#union">Unions</a></li> <li><a href="c/datatypes.html#struct">Structures</a></li> <li><a href="c/datatypes.html#array">Arrays</a></li> |