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| author | Peter Eisentraut <peter@eisentraut.org> | 2022-12-14 05:40:38 +0100 |
|---|---|---|
| committer | Peter Eisentraut <peter@eisentraut.org> | 2022-12-14 06:17:07 +0100 |
| commit | 6fcda9aba83449082124825b6d375c0a61e21c42 (patch) | |
| tree | d2e23f5322bf6879e0ee328593fbc7b3f6f71702 /src/backend/parser/parse_node.c | |
| parent | 60684dd834a222fefedd49b19d1f0a6189c1632e (diff) | |
| download | postgresql-6fcda9aba83449082124825b6d375c0a61e21c42.tar.gz postgresql-6fcda9aba83449082124825b6d375c0a61e21c42.zip | |
Non-decimal integer literals
Add support for hexadecimal, octal, and binary integer literals:
0x42F
0o273
0b100101
per SQL:202x draft.
This adds support in the lexer as well as in the integer type input
functions.
Reviewed-by: John Naylor <john.naylor@enterprisedb.com>
Reviewed-by: Zhihong Yu <zyu@yugabyte.com>
Reviewed-by: David Rowley <dgrowleyml@gmail.com>
Reviewed-by: Dean Rasheed <dean.a.rasheed@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/b239564c-cad0-b23e-c57e-166d883cb97d@enterprisedb.com
Diffstat (limited to 'src/backend/parser/parse_node.c')
| -rw-r--r-- | src/backend/parser/parse_node.c | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/src/backend/parser/parse_node.c b/src/backend/parser/parse_node.c index 4014db4b80f..d33e3c179df 100644 --- a/src/backend/parser/parse_node.c +++ b/src/backend/parser/parse_node.c @@ -385,11 +385,46 @@ make_const(ParseState *pstate, A_Const *aconst) { /* could be an oversize integer as well as a float ... */ + int base = 10; + char *startptr; + int sign; + char *testvalue; int64 val64; char *endptr; + startptr = aconst->val.fval.fval; + if (startptr[0] == '-') + { + sign = -1; + startptr++; + } + else + sign = +1; + if (startptr[0] == '0') + { + if (startptr[1] == 'b' || startptr[1] == 'B') + { + base = 2; + startptr += 2; + } + else if (startptr[1] == 'o' || startptr[1] == 'O') + { + base = 8; + startptr += 2; + } + if (startptr[1] == 'x' || startptr[1] == 'X') + { + base = 16; + startptr += 2; + } + } + + if (sign == +1) + testvalue = startptr; + else + testvalue = psprintf("-%s", startptr); errno = 0; - val64 = strtoi64(aconst->val.fval.fval, &endptr, 10); + val64 = strtoi64(testvalue, &endptr, base); if (errno == 0 && *endptr == '\0') { /* |