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Fix utostr once and for all, by making there only be one function named

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utostr.  To keep the efficiency in the 32-bit case, make it check to see if
the value is 32-bits and if so switch over to the faster 32-bit case.

llvm-svn: 28601
This commit is contained in:
Chris Lattner 2006-05-31 21:25:50 +00:00
parent 36f99c7c1d
commit 2429ec5fdf
1 changed files with 21 additions and 24 deletions
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45
include/llvm/ADT/StringExtras.h
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@ -39,23 +39,7 @@ static inline std::string utohexstr(uint64_t X) {
return std::string(BufPtr);
}
static inline std::string utostr(uint64_t X, bool isNeg = false) {
char Buffer[40];
char *BufPtr = Buffer+39;
*BufPtr = 0; // Null terminate buffer...
if (X == 0) *--BufPtr = '0'; // Handle special case...
while (X) {
*--BufPtr = '0' + char(X % 10);
X /= 10;
}
if (isNeg) *--BufPtr = '-'; // Add negative sign...
return std::string(BufPtr);
}
static inline std::string utostr(uint32_t X, bool isNeg = false) {
static inline std::string utostr_32(uint32_t X, bool isNeg = false) {
char Buffer[20];
char *BufPtr = Buffer+19;
@ -72,6 +56,26 @@ static inline std::string utostr(uint32_t X, bool isNeg = false) {
return std::string(BufPtr);
}
static inline std::string utostr(uint64_t X, bool isNeg = false) {
if (X == (uint32_t)X)
return utostr_32((uint32_t)X, isNeg);
char Buffer[40];
char *BufPtr = Buffer+39;
*BufPtr = 0; // Null terminate buffer...
if (X == 0) *--BufPtr = '0'; // Handle special case...
while (X) {
*--BufPtr = '0' + char(X % 10);
X /= 10;
}
if (isNeg) *--BufPtr = '-'; // Add negative sign...
return std::string(BufPtr);
}
static inline std::string itostr(int64_t X) {
if (X < 0)
return utostr(static_cast<uint64_t>(-X), true);
@ -79,13 +83,6 @@ static inline std::string itostr(int64_t X) {
return utostr(static_cast<uint64_t>(X));
}
static inline std::string itostr(int32_t X) {
if (X < 0)
return utostr(static_cast<unsigned>(-X), true);
else
return utostr(static_cast<unsigned>(X));
}
static inline std::string ftostr(double V) {
char Buffer[200];
sprintf(Buffer, "%20.6e", V);