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Fix incorrect logic in JSON number lexer

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Detectable by gcc -Wlogical-op.

Add two regression test cases that would previously allow incorrect
values to pass.
This commit is contained in:
Peter Eisentraut
2012-05-20 02:24:46 +03:00
parent fe2534e534
commit f1f6737e15
3 changed files with 14 additions and 2 deletions
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4
src/backend/utils/adt/json.c
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@ -541,7 +541,7 @@ json_lex_number(JsonLexContext *lex, char *s)
if (*s == '.')
{
++s;
if (*s < '0' && *s > '9')
if (*s < '0' || *s > '9')
error = true;
else
{
@ -558,7 +558,7 @@ json_lex_number(JsonLexContext *lex, char *s)
++s;
if (*s == '+' || *s == '-')
++s;
if (*s < '0' && *s > '9')
if (*s < '0' || *s > '9')
error = true;
else
{