Category
Purpose
Specifies compiler options in your source program.
Syntax
.--------------------------------------. V | >>-#--pragma--+-option--+----+-option_keyword-------------------+-+->< '-options-' | .-;---------. | | | .-,-----. | | | V V | | | '-option_keyword--=------value-+-+-'
Parameters
The settings in the table below are valid options for #pragma options. For more information, see the pages of the equivalent compiler option.
| Valid settings for #pragma options option_keyword | Compiler option equivalent |
|---|---|
| align=option | -qalign |
| [no]attr attr=full |
-qattr |
| chars=option | -qchars |
| [no]check | -qcheck |
| [no]compact | -qcompact |
| [no]dbcs | -qmbcs, -qdbcs |
| [no]dbxextra | -qdbxextra |
| [no]digraph | -qdigraph |
| [no]dollar | -qdollar |
| enum=option | -qenum |
| [no]extchk | -qextchk |
| flag=option | -qflag |
| float=[no]option | -qfloat |
| [no]flttrap | -qflttrap |
| [no]fullpath | -qfullpath |
| halt | -qhalt |
| [no]idirfirst | -qidirfirst |
| [no]ignerrno | -qignerrno |
| ignprag=option | -qignprag |
| [no]info=option | -qinfo |
| initauto=value | -qinitauto |
| [no]inlglue | -qinlglue |
| isolated_call=names | -qisolated_call |
| langlvl | -qlanglvl |
| [no]ldbl128 | -qldbl128, -qlongdouble |
| [no]libansi | -qlibansi |
| [no]list | -qlist |
| [no]longlong | -qlonglong |
| [no]macpstr | -qmacpstr |
| [no]maxmem=number | -qmaxmem |
| [no]mbcs | -qmbcs, -qdbcs |
| [no]optimize=number | -O, -qoptimize |
| proclocal, procimported, procunknown | -qprocimported, -qproclocal, -qprocunknown |
| [no]proto | -qproto |
| [no]ro | -qro |
| [no]roconst | -qroconst |
| [no]showinc | -qshowinc |
| [no]source | -qsource |
| spill=number | -qspill |
| [no]srcmsg | -qsrcmsg |
| [no]stdinc | -qstdinc |
| [no]strict | -qstrict |
| tbtable=option | -qtbtable |
| tune=option | -qtune |
| [no]unroll=[yes/no/auto/n] | -qunroll |
| [no]upconv | -qupconv |
| [no]xref | -qxref |
Usage
Most #pragma options directives
must come before any statements in your source program; only comments,
blank lines, and other pragma specifications can precede them. For
example, the first few lines of your program can be a comment followed
by the #pragma options directive:
/* The following is an example of a #pragma options directive: */
#pragma options langlvl=stdc89 halt=s spill=1024 source
/* The rest of the source follows ... */To specify
more than one compiler option with the #pragma options directive,
separate the options using a blank space. For example:
#pragma options langlvl=stdc89 halt=s spill=1024 source