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05 April 2024, 19:32:26 UTC
Revision a244dc5b0a629290881641467c7a545de7508ab2 authored by Carlo Marcelo Arenas Belón on 02 November 2021, 15:46:06 UTC, committed by Junio C Hamano on 09 December 2022, 05:26:04 UTC 
test-lib: add prerequisite for 64-bit platforms
 
Allow tests that assume a 64-bit `size_t` to be skipped in 32-bit
platforms and regardless of the size of `long`.

This imitates the `LONG_IS_64BIT` prerequisite.

Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Tip revision: a244dc5b0a629290881641467c7a545de7508ab2 authored by Carlo Marcelo Arenas Belón on 02 November 2021, 15:46:06 UTC
test-lib: add prerequisite for 64-bit platforms
Tip revision: a244dc5
varint.c 
#include "git-compat-util.h"
#include "varint.h"

uintmax_t decode_varint(const unsigned char **bufp)
{
	const unsigned char *buf = *bufp;
	unsigned char c = *buf++;
	uintmax_t val = c & 127;
	while (c & 128) {
		val += 1;
		if (!val || MSB(val, 7))
			return 0; /* overflow */
		c = *buf++;
		val = (val << 7) + (c & 127);
	}
	*bufp = buf;
	return val;
}

int encode_varint(uintmax_t value, unsigned char *buf)
{
	unsigned char varint[16];
	unsigned pos = sizeof(varint) - 1;
	varint[pos] = value & 127;
	while (value >>= 7)
		varint[--pos] = 128 | (--value & 127);
	if (buf)
		memcpy(buf, varint + pos, sizeof(varint) - pos);
	return sizeof(varint) - pos;
}
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