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57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
#include <string.h>
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#include <stdio.h>
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#include "postgres.h" /* for char16, etc. */
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#include "utils/palloc.h" /* for palloc */
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#include "libpq-fe.h" /* for TUPLE */
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int
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add_one(int arg)
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{
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return(arg + 1);
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}
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char16 *
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concat16(char16 *arg1, char16 *arg2)
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{
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char16 *new_c16 = (char16 *) palloc(sizeof(char16));
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memset(new_c16, 0, sizeof(char16));
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(void) strncpy((char*)new_c16, (char*)arg1, 16);
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return (char16 *)(strncat((char*)new_c16, (char*)arg2, 16));
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}
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text *
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copytext(text *t)
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{
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/*
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* VARSIZE is the total size of the struct in bytes.
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*/
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text *new_t = (text *) palloc(VARSIZE(t));
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memset(new_t, 0, VARSIZE(t));
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VARSIZE(new_t) = VARSIZE(t);
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/*
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* VARDATA is a pointer to the data region of the struct.
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*/
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memcpy((void *) VARDATA(new_t), /* destination */
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(void *) VARDATA(t), /* source */
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VARSIZE(t)-VARHDRSZ); /* how many bytes */
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return(new_t);
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}
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bool
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c_overpaid(TUPLE t, /* the current instance of EMP */
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int4 limit)
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{
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bool isnull = false;
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int4 salary;
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salary = (int4) GetAttributeByName(t, "salary", &isnull);
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if (isnull)
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return (false);
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return(salary > limit);
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}
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