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Merge pull request #2097 from whitequark/ilang_lexer-fix-erange 

ilang_lexer: fix check for out of range literal
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whitequark 2020-05-29 09:04:27 +00:00 committed by GitHub
parent 2116d9500c 13b2963ded
commit 626c74adbd
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1 changed files with 3 additions and 1 deletions
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4
frontends/ilang/ilang_lexer.l
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@ -91,8 +91,10 @@ USING_YOSYS_NAMESPACE
[0-9]+'[01xzm-]* { rtlil_frontend_ilang_yylval.string = strdup(yytext); return TOK_VALUE; }
-?[0-9]+ {
char *end = nullptr;
errno = 0;
long value = strtol(yytext, &end, 10);
if (end != yytext + strlen(yytext))
log_assert(end == yytext + strlen(yytext));
if (errno == ERANGE)
return TOK_INVALID; // literal out of range of long
if (value < INT_MIN || value > INT_MAX)
return TOK_INVALID; // literal out of range of int (relevant mostly for LP64 platforms)