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support GCC15

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GCC 15 starts warning about non NUL-terminated string literals:

    chacha.c:44:31: error: initializer-string for array of ‘char’ truncates NUL terminator but destination lacks ‘nonstring’ attribute (17 chars into 16 available) [-Werror=unterminated-string-initialization]
       44 | static const char sigma[16] = "expand 32-byte k";
          |                               ^~~~~~~~~~~~~~~~~~
This commit is contained in:
Christian Göttsche 2025-03-26 10:21:16 +01:00 • committed by Daniel Micay
parent 4fe9018b6f
commit 1d7fc7ffe0
2 changed files with 8 additions and 1 deletions
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chacha.c
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@ -41,7 +41,7 @@ static const unsigned rounds = 8;
a = PLUS(a, b); d = ROTATE(XOR(d, a), 8); \
c = PLUS(c, d); b = ROTATE(XOR(b, c), 7);
static const char sigma[16] = "expand 32-byte k";
static const char sigma[16] NONSTRING = "expand 32-byte k";
void chacha_keysetup(chacha_ctx *x, const u8 *k) {
x->input[0] = U8TO32_LITTLE(sigma + 0);