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| author | Bruce Hill <bruce@bruce-hill.com> | 2024-11-03 15:04:28 -0500 |
|---|---|---|
| committer | Bruce Hill <bruce@bruce-hill.com> | 2024-11-03 15:04:28 -0500 |
| commit | 87176ead2de2b0eb396d75555b3ed2bd5783ce8d (patch) | |
| tree | 238aa79fb1e5e6fb9bba69a774f96e97550842af /stdlib/integers.h | |
| parent | 87d3bf928a9e7ff5d5cd0abba4af7e9bc154a2b0 (diff) | |
Add wrapping plus/minus for fixed-size integers
Diffstat (limited to 'stdlib/integers.h')
| -rw-r--r-- | stdlib/integers.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/stdlib/integers.h b/stdlib/integers.h index 4214c2fa..2293e065 100644 --- a/stdlib/integers.h +++ b/stdlib/integers.h @@ -60,6 +60,12 @@ } \ MACROLIKE c_type type_name ## $modulo1(c_type D, c_type d) { \ return type_name ## $modulo(D-1, d) + 1; \ + } \ + MACROLIKE PUREFUNC c_type type_name ## $wrapping_plus(c_type x, c_type y) { \ + return (c_type)((u##c_type)x + (u##c_type)y); \ + } \ + MACROLIKE PUREFUNC c_type type_name ## $wrapping_minus(c_type x, c_type y) { \ + return (c_type)((u##c_type)x + (u##c_type)y); \ } DEFINE_INT_TYPE(int64_t, Int64, __attribute__(())) |