diff options
Diffstat (limited to 'src/array_fun.h')
| -rw-r--r-- | src/array_fun.h | 20 |
1 files changed, 7 insertions, 13 deletions
diff --git a/src/array_fun.h b/src/array_fun.h index 7b047a19..87d14430 100644 --- a/src/array_fun.h +++ b/src/array_fun.h @@ -41,21 +41,15 @@ namespace aria2 { // calculate length of array - -template<typename T, size_t N> -char (&char_array_ref(T (&)[N]))[N]; - template<typename T, size_t N> -size_t arrayLength(T (&a)[N]) -{ - return sizeof(char_array_ref(a)); -} +char (&char_array_ref_fun(T (&)[N]))[N]; +// For 0 length array template<typename T> -size_t arrayLength(T (&a)[0u]) -{ - return 0; -} +char (&char_array_ref_fun(T (&)[0u]))[0u]; + +// To calculate size of array at compile time, we use macro here. +#define A2_ARRAY_LEN(X) sizeof(char_array_ref_fun(X)) template<typename T, size_t N> T* vbegin(T (&a)[N]) @@ -66,7 +60,7 @@ T* vbegin(T (&a)[N]) template<typename T, size_t N> T* vend(T (&a)[N]) { - return a+arrayLength(a); + return a+N; } template<typename T> |