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Lines 1-9
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// Only use __has_builtin in compilers that support it. |
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#ifndef __has_builtin |
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#define __has_builtin(x) 0 |
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#endif |
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#if !__has_builtin(__builtin_clz) |
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int __builtin_clz(unsigned int); |
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int __builtin_clz(unsigned int); |
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#endif |
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#if !__has_builtin(__builtin_ctz) |
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int __builtin_ctz(unsigned int); |
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int __builtin_ctz(unsigned int); |
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#endif |
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#if !__has_builtin(__builtin_clzl) |
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int __builtin_clzl(unsigned long); |
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int __builtin_clzl(unsigned long); |
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#endif |
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#if !__has_builtin(__builtin_ctzl) |
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int __builtin_ctzl(unsigned long); |
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int __builtin_ctzl(unsigned long); |
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#endif |
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#if !__has_builtin(__builtin_clz) |
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int |
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int |
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__builtin_clz(unsigned int v) |
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__builtin_clz(unsigned int v) |
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{ |
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{ |
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Lines 14-20
__builtin_clz(unsigned int v)
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break; |
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break; |
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return i; |
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return i; |
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} |
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} |
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#endif |
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#if !__has_builtin(__builtin_ctz) |
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int |
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int |
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__builtin_ctz(unsigned int v) |
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__builtin_ctz(unsigned int v) |
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{ |
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{ |
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Lines 25-31
__builtin_ctz(unsigned int v)
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break; |
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break; |
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return i; |
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return i; |
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} |
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} |
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#endif |
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#if !__has_builtin(__builtin_clzl) |
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int |
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int |
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__builtin_clzl(unsigned long v) |
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__builtin_clzl(unsigned long v) |
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{ |
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{ |
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Lines 37-43
__builtin_clzl(unsigned long v)
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break; |
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break; |
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return i; |
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return i; |
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} |
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} |
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#endif |
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#if !__has_builtin(__builtin_ctzl) |
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int |
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int |
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__builtin_ctzl(unsigned long v) |
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__builtin_ctzl(unsigned long v) |
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{ |
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{ |
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Lines 48-50
__builtin_ctzl(unsigned long v)
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break; |
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break; |
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return i; |
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return i; |
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} |
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} |
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#endif |
