| #include <assert.h> |
| #include <stddef.h> |
| #include <stdint.h> |
| #include <string.h> |
| #include <stdio.h> |
| |
| int main(void) |
| { |
| int r, i; |
| char buffer[512]; |
| |
| r = snprintf(buffer, 512, "Hello, %d", 37); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 512, "Hello, %'d", 37373737); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 512, "Hello, %'x", 0xdeadbeef); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 512, "Hello, %'#X", 0xdeadbeef); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 512, "Hello, %'#llo", 0123456701234567ULL); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| /* Make sure overflow works correctly */ |
| memset(buffer, '\xff', 512); |
| r = snprintf(buffer, 16, "Hello, %'#llo", 0123456701234567ULL); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| for (i = 16; i < 512; i++) |
| assert(buffer[i] == '\xff'); |
| |
| r = snprintf(buffer, 512, "Hello, %'#40.20llo", 0123456701234567ULL); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 512, "Hello, %'#-40.20llo", 0123456701234567ULL); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 512, "Hello, %'#*.*llo", 40, 20, |
| 0123456701234567ULL); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 512, "Hello, %'#*.*llo", -40, 20, |
| 0123456701234567ULL); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 512, "Hello, %'#*.*llo", -40, -20, |
| 0123456701234567ULL); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 512, "Hello, %'#*.*llx", -40, -20, |
| 0123456701234567ULL); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 512, "Hello, %p", &buffer); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 512, "Hello, %P", &buffer); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 512, "Hello, %20p", &buffer); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 512, "Hello, %-20p", &buffer); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 512, "Hello, %-20p", NULL); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 20, "Hello, %'-20p", NULL); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 15, "Hello, %'-20p", NULL); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 3, "Hello, %'-20p", NULL); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| /* This shouldn't change buffer in any way! */ |
| r = snprintf(buffer, 0, "Hello, %'-20p", NULL); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| for (i = -30; i <= 30; i++) { |
| r = snprintf(buffer, 40, "Hello, %'*p", i, NULL); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), |
| r); |
| } |
| |
| r = snprintf(buffer, 40, "Hello, %'-20s", "String"); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 40, "Hello, %'20s", "String"); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 40, "Hello, %'020s", "String"); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 40, "Hello, %'-20s", NULL); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 40, "Hello, %'20s", NULL); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 40, "Hello, %'020s", NULL); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 40, "Hello, %'-20c", '*'); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 40, "Hello, %'20c", '*'); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| r = snprintf(buffer, 40, "Hello, %'020c", '*'); |
| printf("buffer = \"%s\" (%d), r = %d\n", buffer, strlen(buffer), r); |
| |
| return 0; |
| } |