diff options
Diffstat (limited to 'doc/html')
-rw-r--r-- | doc/html/Datatypes.html | 36 | ||||
-rw-r--r-- | doc/html/H5.format.html | 87 |
2 files changed, 104 insertions, 19 deletions
diff --git a/doc/html/Datatypes.html b/doc/html/Datatypes.html index 75bc57e..50e0ab7 100644 --- a/doc/html/Datatypes.html +++ b/doc/html/Datatypes.html @@ -159,8 +159,8 @@ type may fail if the precesion must be decremented and the data type is of the <code>H5T_OPAQUE</code> class or the <code>H5T_FLOAT</code> bit fields would extend beyond the - significant part of the type. Increasing the size of an - <code>H5T_STRING</code> automatically increases the precision + significant part of the type. Adjusting the size of an + <code>H5T_STRING</code> automatically adjusts the precision as well. On error, <code>H5Tget_size()</code> returns zero which is never a valid size. @@ -388,9 +388,33 @@ programming language: C usually null terminates strings while Fortran left-justifies and space-pads strings. This property defines the storage mechanism and can be - <code>H5T_STR_NULL</code> for C-style strings or - <code>H5T_STR_SPACE</code> for Fortran-style - strings. <code>H5Tget_strpad()</code> returns + + <p> + <dl> + <dt><code>H5T_STR_NULLTERM</code> + <dd>A C-style string which is guaranteed to be null + terminated. When converting from a longer string the + value will be truncated and then a null character + appended. + + <br><br> + <dt><code>H5T_STR_NULLPAD</code> + <dd>A C-style string which is padded with null characters + but not necessarily null terminated. Conversion from a + long string to a shorter <code>H5T_STR_NULLPAD</code> + string will truncate but not null terminate. Conversion + from a short value to a longer value will append null + characters as with <code>H5T_STR_NULLTERM</code>. + + <br><br> + <dt><code>H5T_STR_SPACEPAD</code> + <dd>A Fortran-style string which is padded with space + characters. This is the same as + <code>H5T_STR_NULLPAD</code> except the padding character + is a space instead of a null. + </dl> + + <p><code>H5Tget_strpad()</code> returns <code>H5T_STR_ERROR</code> on failure, a negative value (all successful return values are non-negative). </dl> @@ -1364,7 +1388,7 @@ H5Tregister_soft ("cus2be", H5T_INTEGER, H5T_INTEGER, cray_ushort2be); <address><a href="mailto:koziol@ncsa.uiuc.edu">Quincey Koziol</a></address> <!-- Created: Thu Dec 4 14:57:32 EST 1997 --> <!-- hhmts start --> -Last modified: Thu Jun 18 13:59:12 EDT 1998 +Last modified: Fri Aug 7 10:24:52 EDT 1998 <!-- hhmts end --> </body> </html> diff --git a/doc/html/H5.format.html b/doc/html/H5.format.html index fff60db..86d591c 100644 --- a/doc/html/H5.format.html +++ b/doc/html/H5.format.html @@ -1978,13 +1978,13 @@ <th width="90%">Meaning</th> </tr> - <tr> + <tr valign=top> <td>0</td> <td><b>Byte Order.</b> If zero, byte order is little-endian; otherwise, byte order is big endian.</td> </tr> - <tr> + <tr valign=top> <td>1, 2</td> <td><b>Padding type.</b> Bit 1 is the lo_pad type and bit 2 is the hi_pad type. If a datum has unused bits at either @@ -1992,13 +1992,13 @@ locations.</td> </tr> - <tr> + <tr valign=top> <td>3</td> <td><b>Signed.</b> If this bit is set then the fixed-point number is in 2's complement form.</td> </tr> - <tr> + <tr valign=top> <td>4-23</td> <td>Reserved (zero).</td> </tr> @@ -2038,13 +2038,13 @@ <th width="90%">Meaning</th> </tr> - <tr> + <tr valign=top> <td>0</td> <td><b>Byte Order.</b> If zero, byte order is little-endian; otherwise, byte order is big endian.</td> </tr> - <tr> + <tr valign=top> <td>1, 2, 3</td> <td><b>Padding type.</b> Bit 1 is the low bits pad type, bit 2 is the high bits pad type, and bit 3 is the internal bits @@ -2053,7 +2053,7 @@ 1, 2, or 3 is copied to those locations.</td> </tr> - <tr> + <tr valign=top> <td>4-5</td> <td><b>Normalization.</b> The value can be 0 if there is no normalization, 1 if the most significant bit of the @@ -2063,18 +2063,18 @@ appear in this field.</td> </tr> - <tr> + <tr valign=top> <td>6-7</td> <td>Reserved (zero).</td> </tr> - <tr> + <tr valign=top> <td>8-15</td> <td><b>Sign.</b> This is the bit position of the sign bit.</td> </tr> - <tr> + <tr valign=top> <td>16-23</td> <td>Reserved (zero).</td> </tr> @@ -2114,6 +2114,67 @@ </table> </center> + <p> + <center> + <table border cellpadding=4 width="80%"> + <caption align=top> + <b>Bit Field for Strings (Class 3)</b> + </caption> + + <tr align=center> + <th width="10%">Bits</th> + <th width="90%">Meaning</th> + </tr> + + <tr valign=top> + <td>0-3</td> + <td><b>Padding type.</b> This four-bit value determines the + type of padding to use for the string. The values are: + + <dl> + <dt><code>0</code> Null terminate. + <dd>A zero byte marks the end of the string and is + guaranteed to be present after converting a long + string to a short string. When converting a short + string to a long string the value is padded with + additional null characters as necessary. + + <br><br> + <dt><code>1</code> Null pad. + <dd>Null characters are added to the end of the value + during conversions from short values to long values + but conversion in the opposite direction simply + truncates the value. + + <br><br> + <dt><code>2</code> Space pad. + <dd>Space characters are added to the end of the value + during conversions from short values to long values + but conversion in the opposite direction simply + truncates the value. This is the Fortran + representation of the string. + + <br><br> + <dt><code>3-15</code> Reserved. + <dd>These values are reserved for future use. + </dl> + </tr> + + <tr valign=top> + <td>4-7</td> + <td><b>Character Set.</b> The character set to use for + encoding the string. The only character set supported is + the 8-bit ASCII (zero) so no translations have been defined + yet.</td> + </tr> + + <tr valign=top> + <td>8-23</td> + <td>Reserved (zero).</td> + </tr> + </table> + </center> + <p> <center> <table border cellpadding=4 width="80%"> @@ -2126,7 +2187,7 @@ <th width="90%">Meaning</th> </tr> - <tr> + <tr valign=top> <td>0-15</td> <td><b>Number of Members.</b> This field contains the number of members defined for the compound data type. The member @@ -2134,7 +2195,7 @@ type message. </tr> - <tr> + <tr valign=top> <td>15-23</td> <td>Reserved (zero).</td> </tr> @@ -3292,7 +3353,7 @@ data-type. <address><a href="mailto:koziol@ncsa.uiuc.edu">Quincey Koziol</a></address> <address><a href="mailto:matzke@llnl.gov">Robb Matzke</a></address> <!-- hhmts start --> -Last modified: Tue Aug 4 10:04:40 EDT 1998 +Last modified: Fri Aug 7 11:04:44 EDT 1998 <!-- hhmts end --> </body> </html> |