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Changed default constructor to leave capacity at 0 and not allocate

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a buffer of 24 bytes


git-svn-id: svn://10.0.0.236/trunk@6807 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
troy%netscape.com
1998-07-29 23:06:21 +00:00
parent 2f5683111e
commit be511b110e
8 changed files with 60 additions and 144 deletions
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47
mozilla/string/obsolete/nsString.cpp
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@@ -33,21 +33,17 @@ const char* kOutOfBoundsError = "Error: out of bounds";
const char* kNullPointerError = "Error: unexpected null ptr";
//**********************************************
//NOTE: Our buffer always hold capacity+1 bytes.
//NOTE: Our buffer always holds capacity+1 bytes.
//**********************************************
/**
* Default constructor. We assume that this string will have
* a bunch of Append's or SetString's done to it, therefore
* we start with a mid sized buffer.
* Default constructor. Assumes the string will be empty, and
* so it starts with a capacity of 0
*/
nsString::nsString() {
mLength = mCapacity = 0;
mStr = 0;
// Size to 4*kGrowthDelta (EnsureCapacityFor adds in kGrowthDelta so
// subtract it before calling)
EnsureCapacityFor(4*kGrowthDelta - kGrowthDelta);
}
nsString::nsString(const char* anISOLatin1) {
@@ -85,24 +81,6 @@ nsString::nsString(const PRUnichar* aUnicodeStr){
this->SetString(aUnicodeStr,len);
}
/*-------------------------------------------------------
* special subclas constructor
* this will optionally not allocate a buffer
* but the subclass must
* @update psl 4/16/98
* @param
* @return
*------------------------------------------------------*/
nsString::nsString(PRBool aSubclassBuffer)
{
mLength=mCapacity=0;
mStr=0;
if (PR_FALSE == aSubclassBuffer) {
EnsureCapacityFor(1);
this->SetString("");
}
}
/*-------------------------------------------------------
* standard destructor
* @update gess 3/27/98
@@ -647,8 +625,11 @@ nsString& nsString::SetString(const PRUnichar* aStr,PRInt32 aLength) {
mStr[mLength]=0;
}
else {
mLength=0; //This little bit of code handles the case
mStr[0]=0; //where some blockhead hands us a null string
mLength=0; //This little bit of code handles the case
//where some blockhead hands us a null string
if (nsnull != mStr) {
mStr[0]=0;
}
}
return *this;
}
@@ -1907,7 +1888,7 @@ void nsString::SelfTest(void) {
* @return
*------------------------------------------------------*/
nsAutoString::nsAutoString()
: nsString(PR_TRUE)
: nsString()
{
mStr = mBuf;
mLength=0;
@@ -1922,7 +1903,7 @@ nsAutoString::nsAutoString()
* @return
*------------------------------------------------------*/
nsAutoString::nsAutoString(const char* isolatin1)
: nsString(PR_TRUE)
: nsString()
{
mLength=0;
mCapacity = (sizeof(mBuf) / sizeof(chartype))-sizeof(chartype);
@@ -1937,7 +1918,7 @@ nsAutoString::nsAutoString(const char* isolatin1)
* @return
*------------------------------------------------------*/
nsAutoString::nsAutoString(const nsString& other)
: nsString(PR_TRUE)
: nsString()
{
mLength=0;
mCapacity = (sizeof(mBuf) / sizeof(chartype))-sizeof(chartype);
@@ -1952,7 +1933,7 @@ nsAutoString::nsAutoString(const nsString& other)
* @return
*------------------------------------------------------*/
nsAutoString::nsAutoString(PRUnichar aChar)
: nsString(PR_TRUE)
: nsString()
{
mLength=0;
mCapacity = (sizeof(mBuf) / sizeof(chartype))-sizeof(chartype);
@@ -1967,7 +1948,7 @@ nsAutoString::nsAutoString(PRUnichar aChar)
* @return
*------------------------------------------------------*/
nsAutoString::nsAutoString(const nsAutoString& other)
: nsString(PR_TRUE)
: nsString()
{
mLength=0;
mCapacity = (sizeof(mBuf) / sizeof(chartype))-sizeof(chartype);
@@ -2007,7 +1988,7 @@ void nsAutoString::EnsureCapacityFor(PRInt32 aNewLength) {
* @return
*------------------------------------------------------*/
nsAutoString::nsAutoString(const PRUnichar* unicode, PRInt32 uslen)
: nsString(PR_TRUE)
: nsString()
{
mStr = mBuf;
mCapacity = sizeof(mBuf) / sizeof(chartype);