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<p>New page: STRUCT(1) UNIX Programmer&#039;s Manual STRUCT(1) == NAME == struct - structure Fortran programs == SYNOPSIS == struct [ option ] ... file == DESCRIPTION ==...</p> <p><b>New page</b></p><div>STRUCT(1) UNIX Programmer's Manual STRUCT(1)<br /> <br /> <br /> <br /> == NAME ==<br /> struct - structure Fortran programs<br /> <br /> == SYNOPSIS ==<br /> struct [ option ] ... file<br /> <br /> == DESCRIPTION ==<br /> _S_t_r_u_c_t translates the Fortran program specified by _f_i_l_e<br /> (standard input default) into a Ratfor program. Wherever<br /> possible, Ratfor control constructs replace the original<br /> Fortran. Statement numbers appear only where still neces-<br /> sary. Cosmetic changes are made, including changing Holler-<br /> ith strings into quoted strings and relational operators<br /> into symbols (.e.g. &quot;.GT.&quot; into &quot;&gt;&quot;). The output is<br /> appropriately indented.<br /> <br /> The following options may occur in any order.<br /> <br /> -s Input is accepted in standard format, i.e. comments<br /> are specified by a c, C, or * in column 1, and con-<br /> tinuation lines are specified by a nonzero, nonblank<br /> character in column 6. Normally input is in the form<br /> accepted by _f_7_7(1)<br /> <br /> -i Do not turn computed goto statements into switches.<br /> (Ratfor does not turn switches back into computed goto<br /> statements.)<br /> <br /> -a Turn sequences of else ifs into a non-Ratfor switch of<br /> the form<br /> <br /> <br /> switch<br /> { case pred1: code<br /> case pred2: code<br /> case pred3: code<br /> default: code<br /> }<br /> <br /> The case predicates are tested in order; the code<br /> appropriate to only one case is executed. This gen-<br /> eralized form of switch statement does not occur in<br /> Ratfor.<br /> <br /> -b Generate goto's instead of multilevel break statements.<br /> <br /> -n Generate goto's instead of multilevel next statements.<br /> <br /> -t_n Make the nonzero integer _n the lowest valued label in<br /> the output program (default 10).<br /> <br /> -c_n Increment successive labels in the output program by<br /> <br /> the nonzero integer _n (default 1).<br /> <br /> -e_n If _n is 0 (default), place code within a loop only if<br /> it can lead to an iteration of the loop. If _n is<br /> nonzero, admit a small code segments to a loop if oth-<br /> erwise the loop would have exits to several places<br /> including the segment, and the segment can be reached<br /> only from the loop. `Small' is close to, but not equal<br /> to, the number of statements in the code segment.<br /> Values of n under 10 are suggested.<br /> <br /> == FILES ==<br /> /tmp/struct*<br /> /usr/lib/struct/*<br /> <br /> == SEE ALSO ==<br /> [[32v 1m f77|f77(1)]]<br /> <br /> == BUGS ==<br /> Struct knows Fortran 66 syntax, but not full Fortran 77.<br /> If an input Fortran program contains identifiers which are<br /> reserved words in Ratfor, the structured version of the pro-<br /> gram will not be a valid Ratfor program.<br /> The labels generated cannot go above 32767.<br /> If you get a goto without a target, try -e .<br /> <br /> [[Category:32v man section 1]]</div>

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