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author | galaxycrab <UgnineSirdis@ydb.tech> | 2023-11-23 11:26:33 +0300 |
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committer | galaxycrab <UgnineSirdis@ydb.tech> | 2023-11-23 12:01:57 +0300 |
commit | 44354d0fc55926c1d4510d1d2c9c9f6a1a5e9300 (patch) | |
tree | cb4d75cd1c6dbc3da0ed927337fd8d1b6ed9da84 /contrib/libs/libpq/src/include/common/shortest_dec.h | |
parent | 0e69bf615395fdd48ecee032faaec81bc468b0b8 (diff) | |
download | ydb-44354d0fc55926c1d4510d1d2c9c9f6a1a5e9300.tar.gz |
YQ Connector:test INNER JOIN
Diffstat (limited to 'contrib/libs/libpq/src/include/common/shortest_dec.h')
-rw-r--r-- | contrib/libs/libpq/src/include/common/shortest_dec.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/contrib/libs/libpq/src/include/common/shortest_dec.h b/contrib/libs/libpq/src/include/common/shortest_dec.h new file mode 100644 index 0000000000..8479b98575 --- /dev/null +++ b/contrib/libs/libpq/src/include/common/shortest_dec.h @@ -0,0 +1,63 @@ +/*--------------------------------------------------------------------------- + * + * Ryu floating-point output. + * + * Portions Copyright (c) 2018-2023, PostgreSQL Global Development Group + * + * IDENTIFICATION + * src/include/common/shortest_dec.h + * + * This is a modification of code taken from github.com/ulfjack/ryu under the + * terms of the Boost license (not the Apache license). The original copyright + * notice follows: + * + * Copyright 2018 Ulf Adams + * + * The contents of this file may be used under the terms of the Apache + * License, Version 2.0. + * + * (See accompanying file LICENSE-Apache or copy at + * http://www.apache.org/licenses/LICENSE-2.0) + * + * Alternatively, the contents of this file may be used under the terms of the + * Boost Software License, Version 1.0. + * + * (See accompanying file LICENSE-Boost or copy at + * https://www.boost.org/LICENSE_1_0.txt) + * + * Unless required by applicable law or agreed to in writing, this software is + * distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. + * + *--------------------------------------------------------------------------- + */ +#ifndef SHORTEST_DEC_H +#define SHORTEST_DEC_H + +/*---- + * The length of 25 comes from: + * + * Case 1: -9.9999999999999999e-299 = 24 bytes, plus 1 for null + * + * Case 2: -0.00099999999999999999 = 23 bytes, plus 1 for null + */ +#define DOUBLE_SHORTEST_DECIMAL_LEN 25 + +int double_to_shortest_decimal_bufn(double f, char *result); +int double_to_shortest_decimal_buf(double f, char *result); +char *double_to_shortest_decimal(double f); + +/* + * The length of 16 comes from: + * + * Case 1: -9.99999999e+29 = 15 bytes, plus 1 for null + * + * Case 2: -0.000999999999 = 15 bytes, plus 1 for null + */ +#define FLOAT_SHORTEST_DECIMAL_LEN 16 + +int float_to_shortest_decimal_bufn(float f, char *result); +int float_to_shortest_decimal_buf(float f, char *result); +char *float_to_shortest_decimal(float f); + +#endif /* SHORTEST_DEC_H */ |