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| author | whitequark <whitequark@whitequark.org> | 2020-05-18 03:18:42 +0000 |
|---|---|---|
| committer | whitequark <whitequark@whitequark.org> | 2020-05-29 06:58:44 +0000 |
| commit | 13b2963dedebf86129574192b0d4719956e93d82 (patch) | |
| tree | 2f602265b8c7687fb41a39c7a51fce2b44fe6488 /frontends/ilang/ilang_lexer.l | |
| parent | 0d99522b3c2ca2502129110e09f9988874e37abc (diff) | |
| download | yosys-13b2963dedebf86129574192b0d4719956e93d82.tar.gz yosys-13b2963dedebf86129574192b0d4719956e93d82.tar.bz2 yosys-13b2963dedebf86129574192b0d4719956e93d82.zip | |
ilang_lexer: fix check for out of range literal.
Commit ca70a104 did not use a correct check.
Diffstat (limited to 'frontends/ilang/ilang_lexer.l')
| -rw-r--r-- | frontends/ilang/ilang_lexer.l | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/frontends/ilang/ilang_lexer.l b/frontends/ilang/ilang_lexer.l index 62f53d18e..3362ed641 100644 --- a/frontends/ilang/ilang_lexer.l +++ b/frontends/ilang/ilang_lexer.l @@ -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) |