本文整理汇总了C++中sid::String::substr方法的典型用法代码示例。如果您正苦于以下问题：C++ String::substr方法的具体用法？C++ String::substr怎么用？C++ String::substr使用的例子？那么恭喜您, 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sid::String的用法示例。
在下文中一共展示了String::substr方法的1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: substrTest
void StringTestCase::substrTest()
{
// Sunny day
{
Sid::String str("foobajooba");
Sid::String sub = str.substr(0,0);
CPPUNIT_ASSERT_PRINTF( sub == "f",
"Basic substr logic is broken (input was %s, 0, 0)\nSubstring was %s\n",
str.data(),
sub.data());
sub = str.substr(0, 9);
CPPUNIT_ASSERT_PRINTF( sub == "foobajooba",
"Basic substr logic is broken (input was %s, 0, 9)\nSubstring was %s\n",
str.data(),
sub.data());
sub = str.substr(0, 8);
CPPUNIT_ASSERT_PRINTF( sub == "foobajoob",
"Basic substr logic is broken (input was %s, 0, 8)\nSubstring was %s\n",
str.data(),
sub.data());
sub = str.substr(1, 9);
CPPUNIT_ASSERT_PRINTF( sub == "oobajooba",
"Basic substr logic is broken (input was %s, 1, 9)\nSubstring was %s\n",
str.data(),
sub.data());
sub = str.substr(1, 8);
CPPUNIT_ASSERT_PRINTF( sub == "oobajoob",
"Basic substr logic is broken (input was %s, 1, 8)\nSubstring was %s\n",
str.data(),
sub.data());
}
// Null string
{
Sid::String str;
Sid::String sub = str.substr(0,0);
CPPUNIT_ASSERT_MESSAGE("Substring (0,0) of a null string somehow is not null. Fascinating!\n",
sub.isNull());
sub = str.substr(0, -1);
CPPUNIT_ASSERT_MESSAGE( "Substring (0,-1) of a null string somehow is not null. Fascinating!\n",
sub.isNull());
}
// Empty string
{
Sid::String str("");
Sid::String sub = str.substr(0,0);
CPPUNIT_ASSERT_MESSAGE("Substring (0,0) of an empty string somehow is not empty. Fascinating!\n",
sub.isEmpty() && !sub.isNull());
sub = str.substr(0, -1);
CPPUNIT_ASSERT_MESSAGE( "Substring (0,-1) of an empty string somehow is not empty. Fascinating!\n",
sub.isEmpty() && !sub.isNull());
}
// boundary fixup
{
Sid::String str("foobajooba");
Sid::String sub = str.substr(0, -1);
CPPUNIT_ASSERT_PRINTF( sub == "foobajoob",
"Negative index code is somehow broken (input was %s, 0, -1)\nSubstring was %s\n",
str.data(),
sub.data());
sub = str.substr(0, -9);
CPPUNIT_ASSERT_PRINTF( sub == "f",
"Negative index code is somehow broken (input was %s, 0, -9)\nSubstring was %s\n",
str.data(),
sub.data());
sub = str.substr(0, -9999999);
CPPUNIT_ASSERT_PRINTF( sub == "f",
"Negative index modulus code is somehow broken (input was %s, 0, -9999999)\nSubstring was %s\n",
str.data(),
sub.data());
sub = str.substr(-5, 2);
CPPUNIT_ASSERT_PRINTF( sub == "foo",
"Negative leading bound fixup seems to not be working (input was %s, -5, 2)\nSubstring was %s\n",
str.data(),
sub.data());
sub = str.substr(5, 2);
CPPUNIT_ASSERT_PRINTF( sub == "obaj",
"Bound swapping fixup seems to not be working (input was %s, 5, 2)\nSubstring was %s\n",
str.data(),
sub.data());
sub = str.substr(5, 900);
CPPUNIT_ASSERT_PRINTF( sub == "jooba",
"Large upper bound fixup seems to not be working (input was %s, 5, 900)\nSubstring was %s\n",
str.data(),
sub.data());
//.........这里部分代码省略.........