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a073ee45c2
with gcc 4.3.2
Compiling MySQL with gcc 4.3.2 and later produces a number of
warnings, many of which are new with the recent compiler
versions.
This bug will be resolved in more than one patch to limit the
size of changesets. This is the first patch, fixing a number
of the warnings, predominantly "suggest using parentheses
around && in ||", and empty for and while bodies.
119 lines
2.8 KiB
C++
119 lines
2.8 KiB
C++
/* Copyright (C) 2004 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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/*
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Functions to read and parse geometrical data.
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NOTE: These functions assumes that the string is end \0 terminated!
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*/
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#include "mysql_priv.h"
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enum Gis_read_stream::enum_tok_types Gis_read_stream::get_next_toc_type()
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{
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skip_space();
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if (m_cur >= m_limit)
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return eostream;
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if (my_isvar_start(&my_charset_bin, *m_cur))
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return word;
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if ((*m_cur >= '0' && *m_cur <= '9') || *m_cur == '-' || *m_cur == '+')
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return numeric;
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if (*m_cur == '(')
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return l_bra;
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if (*m_cur == ')')
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return r_bra;
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if (*m_cur == ',')
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return comma;
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return unknown;
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}
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bool Gis_read_stream::get_next_word(LEX_STRING *res)
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{
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skip_space();
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res->str= (char*) m_cur;
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/* The following will also test for \0 */
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if ((m_cur >= m_limit) || !my_isvar_start(&my_charset_bin, *m_cur))
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return 1;
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/*
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We can't combine the following increment with my_isvar() because
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my_isvar() is a macro that would cause side effects
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*/
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m_cur++;
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while ((m_cur < m_limit) && my_isvar(&my_charset_bin, *m_cur))
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m_cur++;
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res->length= (uint32) (m_cur - res->str);
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return 0;
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}
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/*
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Read a floating point number
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NOTE: Number must start with a digit or sign. It can't start with a decimal
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point
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*/
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bool Gis_read_stream::get_next_number(double *d)
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{
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char *endptr;
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int err;
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skip_space();
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if ((m_cur >= m_limit) ||
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((*m_cur < '0' || *m_cur > '9') && *m_cur != '-' && *m_cur != '+'))
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{
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set_error_msg("Numeric constant expected");
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return 1;
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}
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*d = my_strntod(m_charset, (char *)m_cur,
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(uint) (m_limit-m_cur), &endptr, &err);
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if (err)
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return 1;
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if (endptr)
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m_cur = endptr;
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return 0;
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}
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bool Gis_read_stream::check_next_symbol(char symbol)
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{
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skip_space();
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if ((m_cur >= m_limit) || (*m_cur != symbol))
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{
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char buff[32];
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strmov(buff, "'?' expected");
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buff[2]= symbol;
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set_error_msg(buff);
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return 1;
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}
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m_cur++;
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return 0;
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}
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/*
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Remember error message.
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*/
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void Gis_read_stream::set_error_msg(const char *msg)
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{
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size_t len= strlen(msg); // ok in this context
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m_err_msg= (char *) my_realloc(m_err_msg, (uint) len + 1, MYF(MY_ALLOW_ZERO_PTR));
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memcpy(m_err_msg, msg, len + 1);
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}
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