oysteikt/mpd
0
0
Fork 0
Code Issues Pull Requests Releases Activity

*: add "noexcept" to many, many function prototypes

Browse Source 
This eliminates some overhead, because the compiler doesn't need to
consider these functions throwing.
This commit is contained in:
Max Kellermann
2017-05-08 14:44:49 +02:00
parent ac2e4e593d
commit 71f0ed8b74
272 changed files with 873 additions and 846 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
src/util/UTF8.cxx
View File

@@ -124,7 +124,7 @@ MakeContinuation(unsigned char value)
}
bool
ValidateUTF8(const char *p)
ValidateUTF8(const char *p) noexcept
{
for (; *p != 0; ++p) {
unsigned char ch = *p;
@@ -167,7 +167,7 @@ ValidateUTF8(const char *p)
}
size_t
SequenceLengthUTF8(char ch)
SequenceLengthUTF8(char ch) noexcept
{
if (IsASCII(ch))
return 1;
@@ -196,14 +196,14 @@ SequenceLengthUTF8(char ch)
template<size_t L>
struct CheckSequenceUTF8 {
gcc_pure
bool operator()(const char *p) const {
bool operator()(const char *p) const noexcept {
return IsContinuation(*p) && CheckSequenceUTF8<L-1>()(p + 1);
}
};
template<>
struct CheckSequenceUTF8<0u> {
constexpr bool operator()(gcc_unused const char *p) const {
constexpr bool operator()(gcc_unused const char *p) const noexcept {
return true;
}
};
@@ -211,7 +211,7 @@ struct CheckSequenceUTF8<0u> {
template<size_t L>
gcc_pure
static size_t
InnerSequenceLengthUTF8(const char *p)
InnerSequenceLengthUTF8(const char *p) noexcept
{
return CheckSequenceUTF8<L>()(p)
? L + 1
@@ -219,7 +219,7 @@ InnerSequenceLengthUTF8(const char *p)
}
size_t
SequenceLengthUTF8(const char *p)
SequenceLengthUTF8(const char *p) noexcept
{
const unsigned char ch = *p++;
@@ -246,8 +246,9 @@ SequenceLengthUTF8(const char *p)
return 0;
}
gcc_pure
static const char *
FindNonASCIIOrZero(const char *p)
FindNonASCIIOrZero(const char *p) noexcept
{
while (*p != 0 && IsASCII(*p))
++p;
@@ -256,7 +257,7 @@ FindNonASCIIOrZero(const char *p)
const char *
Latin1ToUTF8(const char *gcc_restrict src, char *gcc_restrict buffer,
size_t buffer_size)
size_t buffer_size) noexcept
{
const char *p = FindNonASCIIOrZero(src);
if (*p == 0)
@@ -294,7 +295,7 @@ Latin1ToUTF8(const char *gcc_restrict src, char *gcc_restrict buffer,
}
char *
UnicodeToUTF8(unsigned ch, char *q)
UnicodeToUTF8(unsigned ch, char *q) noexcept
{
if (gcc_likely(ch < 0x80)) {
*q++ = (char)ch;
@@ -331,7 +332,7 @@ UnicodeToUTF8(unsigned ch, char *q)
}
size_t
LengthUTF8(const char *p)
LengthUTF8(const char *p) noexcept
{
/* this is a very naive implementation: it does not do any
verification, it just counts the bytes that are not a UTF-8