本文整理汇总了C++中CPLStringList::Clear方法的典型用法代码示例。如果您正苦于以下问题：C++ CPLStringList::Clear方法的具体用法？C++ CPLStringList::Clear怎么用？C++ CPLStringList::Clear使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类CPLStringList的用法示例。
在下文中一共展示了CPLStringList::Clear方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: ensure
void object::test<9>()
{
// Test some name=value handling stuff *with* sorting active.
CPLStringList oNVL;
oNVL.Sort();
oNVL.AddNameValue( "KEY1", "VALUE1" );
oNVL.AddNameValue( "2KEY", "VALUE2" );
ensure_equals( "91", oNVL.Count(), 2 );
ensure( "92", EQUAL(oNVL.FetchNameValue("KEY1"),"VALUE1") );
ensure( "93", EQUAL(oNVL.FetchNameValue("2KEY"),"VALUE2") );
ensure( "94", oNVL.FetchNameValue("MISSING") == NULL );
oNVL.AddNameValue( "KEY1", "VALUE3" );
ensure_equals( "95", oNVL.Count(), 3 );
ensure( "96", EQUAL(oNVL.FetchNameValue("KEY1"),"VALUE1") );
ensure( "97", EQUAL(oNVL.FetchNameValueDef("MISSING","X"),"X") );
oNVL.SetNameValue( "2KEY", "VALUE4" );
ensure( "98", EQUAL(oNVL.FetchNameValue("2KEY"),"VALUE4") );
ensure_equals( "99", oNVL.Count(), 3 );
// make sure deletion works.
oNVL.SetNameValue( "2KEY", NULL );
ensure( "9a", oNVL.FetchNameValue("2KEY") == NULL );
ensure_equals( "9b", oNVL.Count(), 2 );
// Test insertion logic pretty carefully.
oNVL.Clear();
ensure( "9c", oNVL.IsSorted() == TRUE );
oNVL.SetNameValue( "B", "BB" );
oNVL.SetNameValue( "A", "AA" );
oNVL.SetNameValue( "D", "DD" );
oNVL.SetNameValue( "C", "CC" );
// items should be in sorted order.
ensure( "9c1", EQUAL(oNVL[0],"A=AA") );
ensure( "9c2", EQUAL(oNVL[1],"B=BB") );
ensure( "9c3", EQUAL(oNVL[2],"C=CC") );
ensure( "9c4", EQUAL(oNVL[3],"D=DD") );
ensure( "9d", EQUAL(oNVL.FetchNameValue("A"),"AA") );
ensure( "9e", EQUAL(oNVL.FetchNameValue("B"),"BB") );
ensure( "9f", EQUAL(oNVL.FetchNameValue("C"),"CC") );
ensure( "9g", EQUAL(oNVL.FetchNameValue("D"),"DD") );
}示例2: XMLInit
int GDALMultiDomainMetadata::XMLInit( CPLXMLNode *psTree, CPL_UNUSED int bMerge )
{
CPLXMLNode *psMetadata;
/* ==================================================================== */
/* Process all <Metadata> elements, each for one domain. */
/* ==================================================================== */
for( psMetadata = psTree->psChild;
psMetadata != NULL; psMetadata = psMetadata->psNext )
{
CPLXMLNode *psMDI;
const char *pszDomain, *pszFormat;
if( psMetadata->eType != CXT_Element
|| !EQUAL(psMetadata->pszValue,"Metadata") )
continue;
pszDomain = CPLGetXMLValue( psMetadata, "domain", "" );
pszFormat = CPLGetXMLValue( psMetadata, "format", "" );
// Make sure we have a CPLStringList for this domain,
// without wiping out an existing one.
if( GetMetadata( pszDomain ) == NULL )
SetMetadata( NULL, pszDomain );
int iDomain = CSLFindString( papszDomainList, pszDomain );
CPLAssert( iDomain != -1 );
CPLStringList *poMDList = papoMetadataLists[iDomain];
/* -------------------------------------------------------------------- */
/* XML format subdocuments. */
/* -------------------------------------------------------------------- */
if( EQUAL(pszFormat,"xml") )
{
CPLXMLNode *psSubDoc;
/* find first non-attribute child of current element */
psSubDoc = psMetadata->psChild;
while( psSubDoc != NULL && psSubDoc->eType == CXT_Attribute )
psSubDoc = psSubDoc->psNext;
char *pszDoc = CPLSerializeXMLTree( psSubDoc );
poMDList->Clear();
poMDList->AddStringDirectly( pszDoc );
}
/* -------------------------------------------------------------------- */
/* Name value format. */
/* <MDI key="...">value_Text</MDI> */
/* -------------------------------------------------------------------- */
else
{
for( psMDI = psMetadata->psChild; psMDI != NULL;
psMDI = psMDI->psNext )
{
if( !EQUAL(psMDI->pszValue,"MDI")
|| psMDI->eType != CXT_Element
|| psMDI->psChild == NULL
|| psMDI->psChild->psNext == NULL
|| psMDI->psChild->eType != CXT_Attribute
|| psMDI->psChild->psChild == NULL )
continue;
char* pszName = psMDI->psChild->psChild->pszValue;
char* pszValue = psMDI->psChild->psNext->pszValue;
if( pszName != NULL && pszValue != NULL )
poMDList->SetNameValue( pszName, pszValue );
}
}
}
return CSLCount(papszDomainList) != 0;
}