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More function docs
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doc/funcref.sgml
464
doc/funcref.sgml
@ -7,7 +7,7 @@
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<abstract>
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cc65 is a C compiler for 6502 based systems. This function reference describes
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the available C functions supplied by the library.
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the C functions available in the standard library.
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</abstract>
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<!-- Table of contents -->
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@ -146,6 +146,15 @@ function.
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</itemize>
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<sect1><tt/fcntl.h/<label id="fcntl.h"><p>
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<itemize>
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<item><ref id="close" name="close">
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<item><ref id="creat" name="creat">
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<item><ref id="open" name="open">
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</itemize>
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<sect1><tt/signal.h/<label id="signal.h"><p>
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<itemize>
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@ -161,28 +170,28 @@ function.
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<item><ref id="_heapmaxavail" name="_heapmaxavail">
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<item><ref id="_heapmemavail" name="_heapmemavail">
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<item><ref id="_randomize" name="_randomize">
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<!-- <item><ref id="_swap" name="_swap"> -->
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<item><ref id="_swap" name="_swap">
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<item><ref id="abort" name="abort">
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<item><ref id="abs" name="abs">
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<item><ref id="atexit" name="atexit">
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<!-- <item><ref id="atoi" name="atoi"> -->
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<!-- <item><ref id="atol" name="atol"> -->
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<item><ref id="atoi" name="atoi">
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<item><ref id="atol" name="atol">
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<!-- <item><ref id="bsearch" name="bsearch"> -->
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<item><ref id="calloc" name="calloc">
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<!-- <item><ref id="div" name="div"> -->
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<item><ref id="exit" name="exit">
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<item><ref id="free" name="free">
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<!-- <item><ref id="getenv" name="getenv"> -->
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<!-- <item><ref id="itoa" name="itoa"> -->
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<item><ref id="getenv" name="getenv">
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<item><ref id="itoa" name="itoa">
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<item><ref id="labs" name="labs">
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<!-- <item><ref id="ltoa" name="ltoa"> -->
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<item><ref id="ltoa" name="ltoa">
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<item><ref id="malloc" name="malloc">
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<!-- <item><ref id="qsort" name="qsort"> -->
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<item><ref id="rand" name="rand">
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<item><ref id="realloc" name="realloc">
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<item><ref id="srand" name="srand">
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<!-- <item><ref id="ultoa" name="ultoa"> -->
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<!-- <item><ref id="utoa" name="utoa"> -->
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<item><ref id="ultoa" name="ultoa">
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<item><ref id="utoa" name="utoa">
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</itemize>
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@ -190,11 +199,11 @@ function.
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<itemize>
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<!-- <item><ref id="_stroserror" name="_stroserror"> -->
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<!-- <item><ref id="bzero" name="bzero"> -->
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<item><ref id="bzero" name="bzero">
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<!-- <item><ref id="memchr" name="memchr"> -->
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<!-- <item><ref id="memcpy" name="memcpy"> -->
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<!-- <item><ref id="memmove" name="memmove"> -->
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<!-- <item><ref id="memset" name="memset"> -->
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<item><ref id="memcpy" name="memcpy">
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<item><ref id="memmove" name="memmove">
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<item><ref id="memset" name="memset">
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<!-- <item><ref id="strcasecmp" name="strcasecmp"> -->
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<item><ref id="strcat" name="strcat">
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<item><ref id="strchr" name="strchr">
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@ -221,6 +230,21 @@ function.
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</itemize>
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<sect1><tt/unistd.h/<label id="unistd.h"><p>
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<itemize>
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<!-- <item><ref id="chdir" name="chdir"> -->
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<!-- <item><ref id="getcwd" name="getcwd"> -->
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<!-- <item><ref id="lseek" name="lseek"> -->
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<!-- <item><ref id="mkdir" name="mkdir"> -->
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<!-- <item><ref id="read" name="read"> -->
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<!-- <item><ref id="rmdir" name="rmdir"> -->
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<item><ref id="sleep" name="sleep">
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<!-- <item><ref id="unlink" name="unlink"> -->
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<!-- <item><ref id="write" name="write"> -->
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</itemize>
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<sect>Alphabetical function reference<p>
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@ -324,6 +348,30 @@ considered random to a certain degree.
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</quote>
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<sect1>_swap<label id="_swap"><p>
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<quote>
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<descrip>
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<tag/Function/Swap the contents of memory areas.
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<tag/Header/<tt/<ref id="stdlib.h" name="stdlib.h">/
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<tag/Declaration/<tt/void __fastcall__ _swap (void* p, void* q, size_t size);/
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<tag/Description/<tt/_swap/ will swap (exchange) the contents of the two memory
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areas pointed to by <tt/p/ and <tt/q/. Both memory areas are assumed to be
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<tt/size/ bytes in size.
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<tag/Limits/<itemize>
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<item>The memory areas may not overlap, otherwise the results are undefined.
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<item>The function is only available as fastcall function, so it may only be
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used in presence of a prototype.
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</itemize>
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<tag/Availability/cc65
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<tag/See also/
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<ref id="memcpy" name="memcpy">,
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<ref id="memmove" name="memmove">
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<tag/Example/None.
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</descrip>
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</quote>
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<sect1>_sys<label id="_sys"><p>
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<quote>
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@ -506,6 +554,60 @@ used in presence of a prototype.
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</quote>
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<sect1>atoi<label id="atoi"><p>
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<quote>
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<descrip>
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<tag/Function/Convert a string to an integer.
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<tag/Header/<tt/<ref id="stdlib.h" name="stdlib.h">/
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<tag/Declaration/<tt/int __fastcall__ atoi (const char* s);/
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<tag/Description/<tt/atoi/ converts the given string into an integer.
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Conversion stops as soon as any invalid character is encountered.
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<tag/Limits/<itemize>
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<item>There is no way to detect any conversion errors.
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<item>The function does not check for an numerical overflow when converting.
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<item>The function is only available as fastcall function, so it may only be
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used in presence of a prototype.
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</itemize>
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<tag/Availability/ISO 9899
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<tag/See also/
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<ref id="atol" name="atol">,
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<ref id="itoa" name="itoa">,
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<ref id="ltoa" name="ltoa">,
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<ref id="ultoa" name="ultoa">,
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<ref id="utoa" name="utoa">
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<tag/Example/None.
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</descrip>
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</quote>
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<sect1>atol<label id="atol"><p>
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<quote>
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<descrip>
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<tag/Function/Convert a string to a long integer.
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<tag/Header/<tt/<ref id="stdlib.h" name="stdlib.h">/
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<tag/Declaration/<tt/long __fastcall__ atol (const char* s);/
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<tag/Description/<tt/atol/ converts the given string into a long integer.
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Conversion stops as soon as any invalid character is encountered.
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<tag/Limits/<itemize>
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<item>There is no way to detect any conversion errors.
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<item>The function does not check for an numerical overflow when converting.
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<item>The function is only available as fastcall function, so it may only be
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used in presence of a prototype.
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</itemize>
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<tag/Availability/ISO 9899
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<tag/See also/
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<ref id="atoi" name="atoi">,
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<ref id="itoa" name="itoa">,
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<ref id="ltoa" name="ltoa">,
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<ref id="ultoa" name="ultoa">,
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<ref id="utoa" name="utoa">
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<tag/Example/None.
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</descrip>
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</quote>
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<sect1>bgcolor<label id="bgcolor"><p>
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<quote>
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@ -554,6 +656,33 @@ be used in presence of a prototype.
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</quote>
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<sect1>bzero<label id="bzero"><p>
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<quote>
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<descrip>
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<tag/Function/Fill a memory area with zeroes.
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<tag/Header/<tt/<ref id="string.h" name="string.h">/
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<tag/Declaration/<tt/void __fastcall__ bzero (void* p, size_t count);/
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<tag/Description/<tt/bzero/ fills the memory area pointed to by <tt/p/ with
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zero.
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<tag/Limits/
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<itemize>
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<item>The function is non standard and therefore only available in non ANSI
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mode. You should use <tt/<ref id="memset" name="memset">/ instead.
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<item>The function is only available as fastcall function, so it may only
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be used in presence of a prototype.
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</itemize>
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<tag/Availability/cc65
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<tag/See also/
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<ref id="_swap" name="_swap">,
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<ref id="memcpy" name="memcpy">,
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<ref id="memmove" name="memmove">,
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<ref id="memset" name="memset">,
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<tag/Example/None.
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</descrip>
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</quote>
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<sect1>c64mode<label id="c64mode"><p>
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<quote>
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@ -745,6 +874,54 @@ the upper left corner.
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</quote>
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<sect1>close<label id="close"><p>
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<quote>
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<descrip>
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<tag/Function/Close a file descriptor.
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<tag/Header/<tt/<ref id="fcntl.h" name="fcntl.h">/
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<tag/Declaration/<tt/int __fastcall__ close (int fd);/
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<tag/Description/The function closes the given file descriptor. It returns zero
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on success and -1 on error. If an error occurs, the cause can be determined by
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reading the <tt/errno/ variable.
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<tag/Limits/<itemize>
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<item>The function is only available as fastcall function, so it may only
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be used in presence of a prototype.
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</itemize>
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<tag/Availability/POSIX
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<tag/See also/
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<ref id="creat" name="creat">,
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<ref id="open" name="open">
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<tag/Example/None.
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</descrip>
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</quote>
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<sect1>creat<label id="creat"><p>
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<quote>
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<descrip>
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<tag/Function/Create a file.
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<tag/Header/<tt/<ref id="fcntl.h" name="fcntl.h">/
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<tag/Declaration/<tt/int __fastcall__ creat (const char* name, unsigned mode);/
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<tag/Description/<tt/creat/ creates a new file and returns the file descriptor
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associated with it. On error, -1 is returned and an error code is stored in
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<tt/errno/.
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<tag/Limits/<itemize>
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<item><tt/creat/ is identical to calling <tt/<ref id="open" name="open">/ with
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<tt/flags/ equal to <tt/O_WRONLY | O_CREAT | O_TRUNC/.
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<item>The function is only available as fastcall function, so it may only
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be used in presence of a prototype.
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</itemize>
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<tag/Availability/POSIX
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<tag/See also/
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<ref id="close" name="close">,
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<ref id="open" name="open">
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<tag/Example/None.
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</descrip>
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</quote>
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<sect1>cursor<label id="cursor"><p>
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<quote>
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@ -1121,6 +1298,29 @@ be used in presence of a prototype.
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</quote>
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<sect1>getenv<label id="getenv"><p>
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<quote>
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<descrip>
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<tag/Function/Return a value from the environment.
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<tag/Header/<tt/<ref id="stdlib.h" name="stdlib.h">/
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<tag/Declaration/<tt/char* __fastcall__ getenv (const char* name);/
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<tag/Description/The function searches the environment for an entry that
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matches <tt/name/ and returns its value. The environment consists of a list
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of strings in the form <tt/name=value/. If there is no match, <tt/getenv/
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returns <tt/NULL/.
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<tag/Limits/<itemize>
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<item>What exactly is stored in the environment depends on the machine the
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program is running on.
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<item>The function is only available as fastcall function, so it may only
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be used in presence of a prototype.
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</itemize>
|
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<tag/Availability/ISO 9899
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<tag/Example/None.
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</descrip>
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</quote>
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<sect1>getcpu<label id="getcpu"><p>
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<quote>
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@ -1720,6 +1920,35 @@ fastcall function, so it may only be used in presence of a prototype.
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</quote>
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<sect1>itoa<label id="itoa"><p>
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<quote>
|
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<descrip>
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<tag/Function/Convert an integer into a string.
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<tag/Header/<tt/<ref id="stdlib.h" name="stdlib.h">/
|
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<tag/Declaration/<tt/char* __fastcall__ itoa (int val, char* buf, int radix);/
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<tag/Description/<tt/itoa/ converts the integer <tt/val/ into a string using
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<tt/radix/ as the base.
|
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<tag/Limits/<itemize>
|
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<item>There are no provisions to prevent a buffer overflow.
|
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<item>If <tt/val/ contains <tt/INT_MIN/, the behaviour is undefined.
|
||||
<item>The function is non standard, so it is not available in strict ANSI mode.
|
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You should probably use <tt/sprintf/ instead.
|
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<item>The function is only available as fastcall function, so it may only be
|
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used in presence of a prototype.
|
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</itemize>
|
||||
<tag/Availability/cc65
|
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<tag/See also/
|
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<ref id="atoi" name="atoi">,
|
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<ref id="atol" name="atol">,
|
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<ref id="ltoa" name="ltoa">,
|
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<ref id="ultoa" name="ultoa">,
|
||||
<ref id="utoa" name="utoa">
|
||||
<tag/Example/None.
|
||||
</descrip>
|
||||
</quote>
|
||||
|
||||
|
||||
<sect1>kbhit<label id="kbhit"><p>
|
||||
|
||||
<quote>
|
||||
@ -1764,6 +1993,35 @@ used in presence of a prototype.
|
||||
</quote>
|
||||
|
||||
|
||||
<sect1>ltoa<label id="ltoa"><p>
|
||||
|
||||
<quote>
|
||||
<descrip>
|
||||
<tag/Function/Convert a long integer into a string.
|
||||
<tag/Header/<tt/<ref id="stdlib.h" name="stdlib.h">/
|
||||
<tag/Declaration/<tt/char* __fastcall__ ltoa (long val, char* buf, int radix);/
|
||||
<tag/Description/<tt/itoa/ converts the long integer <tt/val/ into a string
|
||||
using <tt/radix/ as the base.
|
||||
<tag/Limits/<itemize>
|
||||
<item>There are no provisions to prevent a buffer overflow.
|
||||
<item>If <tt/val/ contains <tt/LONG_MIN/, the behaviour is undefined.
|
||||
<item>The function is non standard, so it is not available in strict ANSI mode.
|
||||
You should probably use <tt/sprintf/ instead.
|
||||
<item>The function is only available as fastcall function, so it may only be
|
||||
used in presence of a prototype.
|
||||
</itemize>
|
||||
<tag/Availability/cc65
|
||||
<tag/See also/
|
||||
<ref id="atoi" name="atoi">,
|
||||
<ref id="atol" name="atol">,
|
||||
<ref id="itoa" name="itoa">,
|
||||
<ref id="ultoa" name="ultoa">,
|
||||
<ref id="utoa" name="utoa">
|
||||
<tag/Example/None.
|
||||
</descrip>
|
||||
</quote>
|
||||
|
||||
|
||||
<sect1>malloc<label id="malloc"><p>
|
||||
|
||||
<quote>
|
||||
@ -1792,6 +2050,111 @@ be used in presence of a prototype.
|
||||
</quote>
|
||||
|
||||
|
||||
<sect1>memcpy<label id="memcpy"><p>
|
||||
|
||||
<quote>
|
||||
<descrip>
|
||||
<tag/Function/Copy a memory area.
|
||||
<tag/Header/<tt/<ref id="string.h" name="string.h">/
|
||||
<tag/Declaration/<tt/void* __fastcall__ memcpy (void* dest, const void* src, size_t count);/
|
||||
<tag/Description/<tt/memcpy/ copies <tt/count/ bytes from the memory area
|
||||
pointed to by <tt/src/ into the memory area pointed to by <tt/dest/. It returns
|
||||
<tt/dest/.
|
||||
<tag/Limits/
|
||||
<itemize>
|
||||
<item>The result is undefined if the memory areas do overlap. Use
|
||||
<tt/<ref id="memmove" name="memmove">/ to copy overlapping memory areas.
|
||||
<item>The function is only available as fastcall function, so it may only
|
||||
be used in presence of a prototype.
|
||||
</itemize>
|
||||
<tag/Availability/ISO 9899
|
||||
<tag/See also/
|
||||
<ref id="_swap" name="_swap">,
|
||||
<ref id="memmove" name="memmove">,
|
||||
<ref id="memset" name="memset">
|
||||
<tag/Example/None.
|
||||
</descrip>
|
||||
</quote>
|
||||
|
||||
|
||||
<sect1>memmove<label id="memmove"><p>
|
||||
|
||||
<quote>
|
||||
<descrip>
|
||||
<tag/Function/Copy a memory area.
|
||||
<tag/Header/<tt/<ref id="string.h" name="string.h">/
|
||||
<tag/Declaration/<tt/void* __fastcall__ memmove (void* dest, const void* src, size_t count);/
|
||||
<tag/Description/<tt/memmove/ copies <tt/count/ bytes from the memory area
|
||||
pointed to by <tt/src/ into the memory area pointed to by <tt/dest/. It returns
|
||||
<tt/dest/.
|
||||
<tag/Limits/
|
||||
<itemize>
|
||||
<item>While <tt/memmove/ allows the memory areas to overlap, it has some
|
||||
additional overhead compared to <tt/<ref id="memcpy" name="memcpy">/.
|
||||
<item>The function is only available as fastcall function, so it may only
|
||||
be used in presence of a prototype.
|
||||
</itemize>
|
||||
<tag/Availability/ISO 9899
|
||||
<tag/See also/
|
||||
<ref id="_swap" name="_swap">,
|
||||
<ref id="memcpy" name="memcpy">,
|
||||
<ref id="memset" name="memset">
|
||||
<tag/Example/None.
|
||||
</descrip>
|
||||
</quote>
|
||||
|
||||
|
||||
<sect1>memset<label id="memset"><p>
|
||||
|
||||
<quote>
|
||||
<descrip>
|
||||
<tag/Function/Fill a memory area.
|
||||
<tag/Header/<tt/<ref id="string.h" name="string.h">/
|
||||
<tag/Declaration/<tt/void* __fastcall__ memset (void* p, int val, size_t count);/
|
||||
<tag/Description/<tt/memset/ fills the memory area pointed to by <tt/p/ with
|
||||
the value <tt/val/. The function returns <tt/p/.
|
||||
<tag/Limits/
|
||||
<itemize>
|
||||
<item>The function is only available as fastcall function, so it may only
|
||||
be used in presence of a prototype.
|
||||
</itemize>
|
||||
<tag/Availability/ISO 9899
|
||||
<tag/See also/
|
||||
<ref id="_swap" name="_swap">,
|
||||
<ref id="bzero" name="bzero">,
|
||||
<ref id="memcpy" name="memcpy">,
|
||||
<ref id="memmove" name="memmove">
|
||||
<tag/Example/None.
|
||||
</descrip>
|
||||
</quote>
|
||||
|
||||
|
||||
<sect1>open<label id="open"><p>
|
||||
|
||||
<quote>
|
||||
<descrip>
|
||||
<tag/Function/Open and possibly create a file.
|
||||
<tag/Header/<tt/<ref id="fcntl.h" name="fcntl.h">/
|
||||
<tag/Declaration/<tt/int __fastcall__ open (const char* name, int flags, ...);/
|
||||
<tag/Description/<tt/open/ opens a file and returns the file descriptor
|
||||
associated with it. On error, -1 is returned and an error code is stored in
|
||||
<tt/errno/. Several flags may be passed to <tt/open/ that change the behaviour.
|
||||
<tag/Limits/<itemize>
|
||||
<item>POSIX specifies an additional <tt/mode/ argument that may be passed to
|
||||
open, which is used as the permission mask when a new file is created. While
|
||||
cc65 allows to pass this argument, it is ignored.
|
||||
<item>The function is only available as fastcall function, so it may only
|
||||
be used in presence of a prototype.
|
||||
</itemize>
|
||||
<tag/Availability/POSIX
|
||||
<tag/See also/
|
||||
<ref id="close" name="close">,
|
||||
<ref id="creat" name="creat">
|
||||
<tag/Example/None.
|
||||
</descrip>
|
||||
</quote>
|
||||
|
||||
|
||||
<sect1>raise<label id="raise"><p>
|
||||
|
||||
<quote>
|
||||
@ -1952,6 +2315,25 @@ be used in presence of a prototype.
|
||||
</quote>
|
||||
|
||||
|
||||
<sect1>sleep<label id="sleep"><p>
|
||||
|
||||
<quote>
|
||||
<descrip>
|
||||
<tag/Function/Sleep for a specified amount of time.
|
||||
<tag/Header/<tt/<ref id="unistd.h" name="unistd.h">/
|
||||
<tag/Declaration/<tt/void __fastcall__ sleep (unsigned seconds);/
|
||||
<tag/Description/The function will return after the specified number of
|
||||
seconds have elapsed.
|
||||
<tag/Limits/<itemize>
|
||||
<item>The function is only available as fastcall function, so it may only
|
||||
be used in presence of a prototype.
|
||||
</itemize>
|
||||
<tag/Availability/POSIX
|
||||
<tag/Example/None.
|
||||
</descrip>
|
||||
</quote>
|
||||
|
||||
|
||||
<sect1>slow<label id="slow"><p>
|
||||
|
||||
<quote>
|
||||
@ -2314,6 +2696,62 @@ only be used in presence of a prototype.
|
||||
</quote>
|
||||
|
||||
|
||||
<sect1>ultoa<label id="ultoa"><p>
|
||||
|
||||
<quote>
|
||||
<descrip>
|
||||
<tag/Function/Convert an unsigned long integer into a string.
|
||||
<tag/Header/<tt/<ref id="stdlib.h" name="stdlib.h">/
|
||||
<tag/Declaration/<tt/char* __fastcall__ ultoa (unsigned long val, char* buf, int radix);/
|
||||
<tag/Description/<tt/itoa/ converts the unsigned long integer <tt/val/ into a
|
||||
string using <tt/radix/ as the base.
|
||||
<tag/Limits/<itemize>
|
||||
<item>There are no provisions to prevent a buffer overflow.
|
||||
<item>The function is non standard, so it is not available in strict ANSI mode.
|
||||
You should probably use <tt/sprintf/ instead.
|
||||
<item>The function is only available as fastcall function, so it may only be
|
||||
used in presence of a prototype.
|
||||
</itemize>
|
||||
<tag/Availability/cc65
|
||||
<tag/See also/
|
||||
<ref id="atoi" name="atoi">,
|
||||
<ref id="atol" name="atol">,
|
||||
<ref id="itoa" name="itoa">,
|
||||
<ref id="ltoa" name="ltoa">,
|
||||
<ref id="utoa" name="utoa">
|
||||
<tag/Example/None.
|
||||
</descrip>
|
||||
</quote>
|
||||
|
||||
|
||||
<sect1>utoa<label id="utoa"><p>
|
||||
|
||||
<quote>
|
||||
<descrip>
|
||||
<tag/Function/Convert an unsigned integer into a string.
|
||||
<tag/Header/<tt/<ref id="stdlib.h" name="stdlib.h">/
|
||||
<tag/Declaration/<tt/char* __fastcall__ utoa (unsigned val, char* buf, int radix);/
|
||||
<tag/Description/<tt/itoa/ converts the unsigned integer <tt/val/ into a string
|
||||
using <tt/radix/ as the base.
|
||||
<tag/Limits/<itemize>
|
||||
<item>There are no provisions to prevent a buffer overflow.
|
||||
<item>The function is non standard, so it is not available in strict ANSI mode.
|
||||
You should probably use <tt/sprintf/ instead.
|
||||
<item>The function is only available as fastcall function, so it may only be
|
||||
used in presence of a prototype.
|
||||
</itemize>
|
||||
<tag/Availability/cc65
|
||||
<tag/See also/
|
||||
<ref id="atoi" name="atoi">,
|
||||
<ref id="atol" name="atol">,
|
||||
<ref id="itoa" name="itoa">,
|
||||
<ref id="ltoa" name="ltoa">,
|
||||
<ref id="ultoa" name="ultoa">
|
||||
<tag/Example/None.
|
||||
</descrip>
|
||||
</quote>
|
||||
|
||||
|
||||
<sect1>wherex<label id="wherex"><p>
|
||||
|
||||
<quote>
|
||||
|
||||
Loading…
Reference in New Issue
Block a user