795cd2013f
Originally I made those as macros. However we have many other small functions like mp_clamp, mp_exch which are also not implemented as macros right now. If we would use c99, I would implement them as private static inline functions. And mp_exch would be a public static inline function. But since we are bound to c89, we simply use normal functions. To achieve optimal performance one should either use link time optimization or amalgamation.
34 lines
684 B
C
34 lines
684 B
C
#include "tommath_private.h"
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#ifdef MP_FWRITE_C
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/* LibTomMath, multiple-precision integer library -- Tom St Denis */
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/* SPDX-License-Identifier: Unlicense */
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#ifndef MP_NO_FILE
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mp_err mp_fwrite(const mp_int *a, int radix, FILE *stream)
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{
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char *buf;
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mp_err err;
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size_t size, written;
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if ((err = mp_radix_size(a, radix, &size)) != MP_OKAY) {
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return err;
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}
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buf = (char *) MP_MALLOC(size);
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if (buf == NULL) {
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return MP_MEM;
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}
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if ((err = mp_to_radix(a, buf, size, &written, radix)) == MP_OKAY) {
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if (fwrite(buf, written, 1uL, stream) != 1uL) {
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err = MP_ERR;
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}
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}
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MP_FREE_BUF(buf, size);
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return err;
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}
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#endif
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#endif
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