diff options
Diffstat (limited to 'stdio-common')
| -rw-r--r-- | stdio-common/Makefile | 2 | ||||
| -rw-r--r-- | stdio-common/tst-sprintf2.c | 59 |
2 files changed, 60 insertions, 1 deletions
diff --git a/stdio-common/Makefile b/stdio-common/Makefile index 709a5730fb..735b40104a 100644 --- a/stdio-common/Makefile +++ b/stdio-common/Makefile @@ -54,7 +54,7 @@ tests := tstscanf test_rdwr test-popen tstgetln test-fseek \ tst-swprintf tst-fseek tst-fmemopen test-vfprintf tst-gets \ tst-perror tst-sprintf tst-rndseek tst-fdopen tst-fphex bug14 bug15 \ tst-popen tst-unlockedio tst-fmemopen2 tst-put-error tst-fgets \ - tst-fwrite bug16 bug17 tst-swscanf + tst-fwrite bug16 bug17 tst-swscanf tst-sprintf2 test-srcs = tst-unbputc tst-printf diff --git a/stdio-common/tst-sprintf2.c b/stdio-common/tst-sprintf2.c new file mode 100644 index 0000000000..9024b58782 --- /dev/null +++ b/stdio-common/tst-sprintf2.c @@ -0,0 +1,59 @@ +#include <float.h> +#include <math.h> +#include <stdio.h> + +int +main (void) +{ + volatile union { long double l; long long x[2]; } u; + char buf[64]; + int result = 0; + +#define TEST(val) \ + do \ + { \ + u.l = (val); \ + snprintf (buf, sizeof buf, "%LaL", u.l); \ + if (strcmp (buf, #val) != 0) \ + { \ + printf ("Error on line %d: %s != %s\n", __LINE__, buf, #val); \ + result = 1; \ + } \ + /* printf ("%s %La %016Lx %016Lx\n", #val, u.l, u.x[0], u.x[1]); */ \ + } \ + while (0) + +#if LDBL_MANT_DIG >= 106 +# if LDBL_MANT_DIG == 106 + TEST (0x0.ffffffffffffp-1022L); + TEST (0x0.ffffffffffff1p-1022L); + TEST (0x0.fffffffffffffp-1022L); +# endif + TEST (0x1p-1022L); + TEST (0x1.0000000000001p-1022L); + TEST (0x1.00000000001e7p-1022L); + TEST (0x1.fffffffffffffp-1022L); + TEST (0x1p-1021L); + TEST (0x1.00000000000008p-1021L); + TEST (0x1.0000000000001p-1021L); + TEST (0x1.00000000000018p-1021L); + TEST (0x1.0000000000000f8p-1017L); + TEST (0x1.0000000000001p-1017L); + TEST (0x1.000000000000108p-1017L); + TEST (0x1.000000000000dcf8p-1013L); + TEST (0x1.000000000000ddp-1013L); + TEST (0x1.000000000000dd08p-1013L); + TEST (0x1.ffffffffffffffffffffffffffp-1L); + TEST (0x1.ffffffffffffffffffffffffff8p-1L); + TEST (0x1p+0L); + TEST (0x1.000000000000000000000000008p+0L); + TEST (0x1.00000000000000000000000001p+0L); + TEST (0x1.000000000000000000000000018p+0L); + TEST (0x1.23456789abcdef123456789abc8p+0L); + TEST (0x1.23456789abcde7123456789abc8p+0L); + TEST (0x1.23456789abcdef123456789abc8p+64L); + TEST (0x1.23456789abcde7123456789abc8p+64L); + TEST (0x1.123456789abcdef123456789p-969L); +#endif + return result; +} |