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Use ptrdiff_t type to more precisely indicate usage and avoid compiler warnings.

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This commit is contained in:
murrayn 2018-02-05 02:25:28 -08:00
parent d32528e733
commit a25cb0f313
1 changed files with 3 additions and 3 deletions
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6
src/key.cpp
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@ -44,7 +44,7 @@ static int ec_privkey_import_der(const secp256k1_context* ctx, unsigned char *ou
if (end - privkey < 1 || !(*privkey & 0x80u)) {
return 0;
}
size_t lenb = *privkey & ~0x80u; privkey++;
ptrdiff_t lenb = *privkey & ~0x80u; privkey++;
if (lenb < 1 || lenb > 2) {
return 0;
}
@ -52,7 +52,7 @@ static int ec_privkey_import_der(const secp256k1_context* ctx, unsigned char *ou
return 0;
}
/* sequence length */
size_t len = privkey[lenb-1] | (lenb > 1 ? privkey[lenb-2] << 8 : 0u);
ptrdiff_t len = privkey[lenb-1] | (lenb > 1 ? privkey[lenb-2] << 8 : 0u);
privkey += lenb;
if (end - privkey < len) {
return 0;
@ -66,7 +66,7 @@ static int ec_privkey_import_der(const secp256k1_context* ctx, unsigned char *ou
if (end - privkey < 2 || privkey[0] != 0x04u) {
return 0;
}
size_t oslen = privkey[1];
ptrdiff_t oslen = privkey[1];
privkey += 2;
if (oslen > 32 || end - privkey < oslen) {
return 0;