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增加BE，修正write num

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fumiama
2021-05-17 18:15:10 +08:00
parent e0b88c0c63
commit abb62804c0
2 changed files with 10 additions and 6 deletions
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5
CMakeLists.txt
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@@ -4,10 +4,9 @@ project(simple-protobuf)
include(TestBigEndian) include(TestBigEndian)
test_big_endian(isBigEndian) test_big_endian(isBigEndian)
if (${isBigEndian}) if (${isBigEndian})
add_library(spb SHARED protobuf_be.c) add_definitions(-DWORDS_BIGENDIAN)
else()
add_library(spb SHARED protobuf_le.c)
endif() endif()
add_library(spb SHARED protobuf.c)
add_executable(test test.c) add_executable(test test.c)
target_link_libraries(test spb) target_link_libraries(test spb)

11
protobuf_le.c → protobuf.c
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@@ -19,9 +19,14 @@ static uint64_t read_num(FILE* fp) {
static int write_num(FILE* fp, uint64_t n) { static int write_num(FILE* fp, uint64_t n) {
char* c = (char*)(&n); char* c = (char*)(&n);
int i = 0; int i = 0;
while(*c) { while(n > 0) {
int ch = *c & 0x7f; #ifdef WORDS_BIGENDIAN
if(c[1]) ch |= 0x80; int ch = c[7] & 0x7f;
if(c[6]) ch |= 0x80;
#else
int ch = *c & 0x7f;
if(c[1]) ch |= 0x80;
#endif
fputc(ch, fp); fputc(ch, fp);
n >>= 7; n >>= 7;
i++; i++;