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author | Rich Felker <dalias@aerifal.cx> | 2012-02-06 01:14:23 -0500 |
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committer | Rich Felker <dalias@aerifal.cx> | 2012-02-06 01:14:23 -0500 |
commit | f4ad36c4bf23899a3164ebd40ff5781c152bcb01 (patch) | |
tree | b1d9a18eac66966fe7718d6cf82b4da83f99b1a0 /src/stdlib/fcvt.c | |
parent | 5a09a53010046fce204cb5138329f8aace79ab1a (diff) | |
download | musl-f4ad36c4bf23899a3164ebd40ff5781c152bcb01.zip musl-f4ad36c4bf23899a3164ebd40ff5781c152bcb01.tar.gz musl-f4ad36c4bf23899a3164ebd40ff5781c152bcb01.tar.bz2 |
add deprecated (removed from posix) [efg]cvt() functions
these have not been heavily tested, but they should work as described
in the old standards. probably broken for non-finite values...
Diffstat (limited to 'src/stdlib/fcvt.c')
-rw-r--r-- | src/stdlib/fcvt.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/stdlib/fcvt.c b/src/stdlib/fcvt.c new file mode 100644 index 0000000..003aa5a --- /dev/null +++ b/src/stdlib/fcvt.c @@ -0,0 +1,25 @@ +#define _GNU_SOURCE +#include <stdlib.h> +#include <stdio.h> +#include <string.h> + +char *fcvt(double x, int n, int *dp, int *sign) +{ + char tmp[1500]; + int i, lz; + + if (n > 1400U) n = 1400; + sprintf(tmp, "%.*f", n, x); + i = (tmp[0] == '-'); + if (tmp[i] == '0') lz = strspn(tmp+i+2, "0"); + else lz = -(int)strcspn(tmp+i, "."); + + if (n<=lz) { + *sign = i; + *dp = 0; + if (n>14U) n = 14; + return "000000000000000"+14-n; + } + + return ecvt(x, n-lz, dp, sign); +} |