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PO.... undeclared (first use in this function)?
 

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  1. PO.... undeclared (first use in this function)?
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    <p>I have a simple code in lex language and i generate lex.yy.c with Flex. when i want to compile lex.yy.c to .exe file i get some error like "undeclared (first use in this function) " ! when i search in web i understand i need a Const.h file, so i want to generate that file. how i can do this ?</p> <p>Some Errors:</p> <p>35 C:\Users\Majid\Desktop\win\lex.l <code>STRING' undeclared (first use in this function) 38 C:\Users\Majid\Desktop\win\lex.l</code>LC' undeclared (first use in this function) 39 C:\Users\Majid\Desktop\win\lex.l `LP' undeclared (first use in this function) ....</p> <p>Beginnig of The Code is :</p> <pre><code>%{int stk[20],stk1[20]; int lbl=0,wlbl=0; int lineno=0; int pcount=1; int lcount=0,wlcount=0; int token=100; int dtype=0; int count=0; int fexe=0; char c,str[20],str1[10],idename[10]; char a[100]; void eatcom(); void eatWS(); int set(int); void check(char); void checkop(); int chfunction(char *);%} Digit [0-9] Letter [a-zA-Z] ID {letter}({letter}|{digit})* NUM {digit}+ Delim [ \t] A [A-Za-z]] %% "/*" eatcom(); "//"(.)* \"(\\.|[^\"])*\" return (STRING); \"(\\.|[^\"])*\n printf("Adding missing \" to sting constant"); "{" {a[count++]='{';fexe=0;eatWS();return LC;} "(" {a[count++]='(';eatWS();return LP;} "[" {a[count++]='[';eatWS();return LB;} "}" {check('{');eatWS(); if(cflag) { //stk[lbl++]=lcount++; fprintf(fc,"lbl%d:\n",stk[--lbl]); //stk[lbl++]=lcount++; printf("%d\n",stk[lbl]); cflag=0; } return RC; } "]" {check('[');eatWS();return RB;} ")" {check('(');eatWS();return RP;} "++" | "--" return INCOP; [~!] return UNOP; "*" {eatWS();return STAR;} [/%] {eatWS();return DIVOP;} "+" {eatWS();return PLUS;} "-" {eatWS();return MINUS;} </code></pre>
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    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USJonathan Leffler
    1. USCert
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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      1. PTAnswer
    1. VO
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      1. PO.... undeclared (first use in this function)?
      1. This table or related slice is empty.
      1. VTUpMod
    1. COWould be more helpful if you post the contents of lex.l
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      1. PO.... undeclared (first use in this function)?
      1. USAlejandro Garcia
    2. COI found this post like my post . please help me how i can generate "y.tab.h" that contains the definitions in windows ?
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      1. PO.... undeclared (first use in this function)?
      1. USCert
 

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