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| author | Tobias Klauser <tklauser@distanz.ch> | 2008-01-27 11:37:44 +0100 |
|---|---|---|
| committer | Tobias Klauser <tklauser@xenon.tklauser.home> | 2008-01-27 11:37:44 +0100 |
| commit | 7e0f021a9aec35fd8e6725e87e3313b101d26f5e (patch) | |
| tree | b1cacc4b24393f517aeb4610e9e1021f954307a8 /reference/C/FUNCTIONS/strtol.html | |
Initial import (2.0.2-6)2.0.2-6
Diffstat (limited to 'reference/C/FUNCTIONS/strtol.html')
| -rw-r--r-- | reference/C/FUNCTIONS/strtol.html | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/reference/C/FUNCTIONS/strtol.html b/reference/C/FUNCTIONS/strtol.html new file mode 100644 index 0000000..1a676fc --- /dev/null +++ b/reference/C/FUNCTIONS/strtol.html @@ -0,0 +1,90 @@ +<title>strtol function</title> + +<head> +<script language="JavaScript"> +</script> +</head> + +<body bgcolor=#ffffcc> +<hr> +<center> +<h1>strtol function </h1> +</center> +<hr> +<p> +<b>strtol</b> will convert a string to a long integer. An important feature +of this function is the ability to accept data in various number bases +and convert to decimal. If +you are just working with decimal numbers, +<a href="atoi.html">atoi</a> is probably an easer function to use. +<p> +<hr> +<pre> + +Library: stdlib.h + +Prototype: long int strtol(const char *sptr, char **endptr, int base); + +Syntax: char String[]="ff"; /* string to convert */ + int Base=16; /* Base 16 */ + long int Ans; /* Result */ + + Ans = strtol(String, NULL, Base); +</pre> + +<hr> +<h2>Notes</h2> +The second argument (char **endptr) seems to be a waste of space! If +it is set to NULL, STRTOL +seems to work its way down the string until it finds an invalid character +and then stops. All valid chars read are then converted if the string +starts with an invalid character the function returns ZERO (0). +<p> +The Third argument (base) can have a value of 0 or 2-32. +<ul> +<li>0 - strtol will attempt to pick the base. Only Dec, Oct Hex supported. +<li>2-31 - The base to use. +</ul> +<hr> +<h2>Examples:</h2> +<img src=../../GRAPHICS/computer.gif> +<a href="../EXAMPLES/strtol.c"> Example program.</a> +<p> +<hr> +<dt><h2>See also:</h2> +<p> +<dt><a href="atoi.html">atoi</a> String to integer conversion. +<dt><a href="atof.html">atof</a> String to floating point conversion. +<dt><a href="atol.html">atol</a> String to long integer conversion. +<dt><a href="../MAN/strtod.htm">strtod</a> String to double conversion. +<dt><a href="strtoul.html">strtoul</a> String to unsigned long integer +conversion. +<dt><a href="../MISC/numconv.html">Conversion table.</a> +<p> + + +<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="funcref.htm"> Functions</a> +</td> +</tr> +</table> +</center> +<p> +<hr> +<address>Martin Leslie +</address><p> +</body> +</html> |