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Add example ntoa (#33)
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4 changed files with 292 additions and 1 deletions
1
.gitignore
vendored
1
.gitignore
vendored
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@ -92,6 +92,7 @@
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/examples/assert_guards
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/examples/assert_simple
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/examples/cmdline
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/examples/ntoa
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/examples/panic_guards
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/examples/panic_simple
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/examples/pfa
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@ -111,7 +111,9 @@ endif
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if WITH_NTOA
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libkernaux_a_SOURCES += src/ntoa.c
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if ENABLE_TESTS
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TESTS += tests/test_ntoa
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TESTS += \
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examples/ntoa \
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tests/test_ntoa
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endif
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endif
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@ -170,6 +172,10 @@ examples_cmdline_SOURCES = \
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$(libkernaux_a_SOURCES) \
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examples/cmdline.c
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examples_ntoa_SOURCES = \
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$(libkernaux_a_SOURCES) \
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examples/ntoa.c
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examples_panic_guards_SOURCES = \
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$(libkernaux_a_SOURCES) \
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examples/panic_guards.c
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@ -67,6 +67,7 @@ zero). Work-in-progress APIs can change at any time.
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* Usual functions
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* [libc replacement](/include/kernaux/libc.h) (*stable since* **0.1.0**)
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* [itoa/ftoa replacement](/include/kernaux/ntoa.h) (*stable since* **0.1.0**, *non-breaking since* **?.?.?**)
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* [Example](/examples/ntoa.c)
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* [printf replacement](/include/kernaux/printf.h) (*stable since* **0.1.0**)
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* Code from [https://github.com/mpaland/printf](https://github.com/mpaland/printf). Thank you!
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* [printf](/examples/printf.c)
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283
examples/ntoa.c
Normal file
283
examples/ntoa.c
Normal file
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@ -0,0 +1,283 @@
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#include <kernaux/ntoa.h>
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#include <assert.h>
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#include <stddef.h>
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#include <string.h>
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static const char *str_end(const char *str)
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{
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for (;; ++str) if (*str == '\0') return str;
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}
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int main()
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{
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// kernaux_utoa
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{
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char buffer[KERNAUX_UTOA_MIN_BUFFER_SIZE + 3]; // more space for prefix
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const char *end;
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// decimal: 10
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// no prefix (NULL)
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end = kernaux_utoa(123, buffer, 10, NULL);
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assert(strcmp(buffer, "123") == 0);
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assert(end == str_end(buffer));
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// decimal: 10
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// with prefix ("foo")
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end = kernaux_utoa(123, buffer, 10, "foo");
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assert(strcmp(buffer, "foo123") == 0);
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assert(end == str_end(buffer));
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// decimal, character alias: 'd'
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// no prefix (NULL)
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end = kernaux_utoa(123, buffer, 'd', NULL);
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assert(strcmp(buffer, "123") == 0);
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assert(end == str_end(buffer));
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// binary: 2
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// no prefix (NULL)
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end = kernaux_utoa(123, buffer, 2, NULL);
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assert(strcmp(buffer, "1111011") == 0);
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assert(end == str_end(buffer));
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// binary: 2
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// with prefix ("0b")
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end = kernaux_utoa(123, buffer, 2, "0b");
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assert(strcmp(buffer, "0b1111011") == 0);
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assert(end == str_end(buffer));
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// binary, character alias: 'b'
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// no prefix (NULL)
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end = kernaux_utoa(123, buffer, 'b', NULL);
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assert(strcmp(buffer, "1111011") == 0);
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assert(end == str_end(buffer));
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// binary, character alias: 'b'
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// with prefix ("0b")
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end = kernaux_utoa(123, buffer, 'b', "0b");
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assert(strcmp(buffer, "0b1111011") == 0);
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assert(end == str_end(buffer));
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// octal: 8
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// no prefix (NULL)
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end = kernaux_utoa(0123, buffer, 8, NULL);
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assert(strcmp(buffer, "123") == 0);
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assert(end == str_end(buffer));
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// octal: 8
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// with prefix ("0o")
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end = kernaux_utoa(0123, buffer, 8, "0o");
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assert(strcmp(buffer, "0o123") == 0);
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assert(end == str_end(buffer));
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// octal, character alias: 'o'
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// no prefix (NULL)
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end = kernaux_utoa(0123, buffer, 'o', NULL);
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assert(strcmp(buffer, "123") == 0);
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assert(end == str_end(buffer));
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// octal, character alias: 'o'
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// with prefix ("0o")
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end = kernaux_utoa(0123, buffer, 'o', "0o");
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assert(strcmp(buffer, "0o123") == 0);
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assert(end == str_end(buffer));
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// hex: 16
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// no prefix (NULL)
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end = kernaux_utoa(0x123cafe, buffer, 16, NULL);
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assert(strcmp(buffer, "123cafe") == 0);
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assert(end == str_end(buffer));
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// hex: 16
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// with prefix ("0x")
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end = kernaux_utoa(0x123cafe, buffer, 16, "0x");
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assert(strcmp(buffer, "0x123cafe") == 0);
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assert(end == str_end(buffer));
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// hex, character alias: 'x'
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// no prefix (NULL)
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end = kernaux_utoa(0x123cafe, buffer, 'x', NULL);
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assert(strcmp(buffer, "123cafe") == 0);
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assert(end == str_end(buffer));
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// hex, character alias: 'x'
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// with prefix ("0x")
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end = kernaux_utoa(0x123cafe, buffer, 'x', "0x");
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assert(strcmp(buffer, "0x123cafe") == 0);
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assert(end == str_end(buffer));
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// hex, character alias: 'h'
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// no prefix (NULL)
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end = kernaux_utoa(0x123cafe, buffer, 'h', NULL);
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assert(strcmp(buffer, "123cafe") == 0);
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assert(end == str_end(buffer));
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// hex, uppercase: -16
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// no prefix (NULL)
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end = kernaux_utoa(0x123cafe, buffer, -16, NULL);
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assert(strcmp(buffer, "123CAFE") == 0);
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assert(end == str_end(buffer));
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// hex, uppercase, character alias: 'X'
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// no prefix (NULL)
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end = kernaux_utoa(0x123cafe, buffer, 'X', NULL);
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assert(strcmp(buffer, "123CAFE") == 0);
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assert(end == str_end(buffer));
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// hex, uppercase, character alias: 'H'
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// no prefix (NULL)
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end = kernaux_utoa(0x123cafe, buffer, 'H', NULL);
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assert(strcmp(buffer, "123CAFE") == 0);
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assert(end == str_end(buffer));
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// random base: 14
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// no prefix (NULL)
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end = kernaux_utoa(123456, buffer, 14, NULL);
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assert(strcmp(buffer, "32dc4") == 0);
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assert(end == str_end(buffer));
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// random base: 14
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// with prefix ("foo")
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end = kernaux_utoa(123456, buffer, 14, "foo");
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assert(strcmp(buffer, "foo32dc4") == 0);
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assert(end == str_end(buffer));
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// random base, uppercase: -14
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// no prefix (NULL)
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end = kernaux_utoa(123456, buffer, -14, NULL);
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assert(strcmp(buffer, "32DC4") == 0);
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assert(end == str_end(buffer));
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}
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// kernaux_itoa - similar to kernaux_utoa
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{
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char buffer[KERNAUX_ITOA_MIN_BUFFER_SIZE + 3]; // more space for prefix
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const char *end;
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// sign: +
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// decimal: 10
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// no prefix (NULL)
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end = kernaux_itoa(123, buffer, 10, NULL);
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assert(strcmp(buffer, "123") == 0);
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assert(end == str_end(buffer));
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// sign: -
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// decimal: 10
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// no prefix (NULL)
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end = kernaux_itoa(-123, buffer, 10, NULL);
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assert(strcmp(buffer, "-123") == 0);
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assert(end == str_end(buffer));
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// sign: +
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// decimal: 10
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// with prefix ("foo")
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end = kernaux_itoa(123, buffer, 10, "foo");
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assert(strcmp(buffer, "foo123") == 0);
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assert(end == str_end(buffer));
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// sign: -
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// decimal: 10
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// with prefix ("foo")
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end = kernaux_itoa(-123, buffer, 10, "foo");
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assert(strcmp(buffer, "-foo123") == 0);
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assert(end == str_end(buffer));
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}
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// kernaux_utoa2
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{
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char buffer[KERNAUX_UTOA2_BUFFER_SIZE];
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const char *end;
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end = kernaux_utoa2(123, buffer);
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assert(strcmp(buffer, "0b1111011") == 0);
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assert(end == str_end(buffer));
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}
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// kernaux_itoa2
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{
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char buffer[KERNAUX_ITOA2_BUFFER_SIZE];
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const char *end;
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end = kernaux_itoa2(123, buffer);
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assert(strcmp(buffer, "0b1111011") == 0);
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assert(end == str_end(buffer));
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end = kernaux_itoa2(-123, buffer);
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assert(strcmp(buffer, "-0b1111011") == 0);
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assert(end == str_end(buffer));
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}
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// kernaux_utoa8
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{
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char buffer[KERNAUX_UTOA8_BUFFER_SIZE];
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const char *end;
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end = kernaux_utoa8(0123, buffer);
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assert(strcmp(buffer, "0o123") == 0);
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assert(end == str_end(buffer));
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}
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// kernaux_itoa8
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{
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char buffer[KERNAUX_ITOA8_BUFFER_SIZE];
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const char *end;
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end = kernaux_itoa8(0123, buffer);
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assert(strcmp(buffer, "0o123") == 0);
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assert(end == str_end(buffer));
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end = kernaux_itoa8(-0123, buffer);
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assert(strcmp(buffer, "-0o123") == 0);
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assert(end == str_end(buffer));
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}
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// kernaux_utoa10
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{
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char buffer[KERNAUX_UTOA10_BUFFER_SIZE];
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const char *end;
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end = kernaux_utoa10(123, buffer);
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assert(strcmp(buffer, "123") == 0);
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assert(end == str_end(buffer));
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}
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// kernaux_itoa10
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{
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char buffer[KERNAUX_ITOA10_BUFFER_SIZE];
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const char *end;
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end = kernaux_itoa10(123, buffer);
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assert(strcmp(buffer, "123") == 0);
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assert(end == str_end(buffer));
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end = kernaux_itoa10(-123, buffer);
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assert(strcmp(buffer, "-123") == 0);
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assert(end == str_end(buffer));
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}
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// kernaux_utoa16
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{
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char buffer[KERNAUX_UTOA16_BUFFER_SIZE];
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const char *end;
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end = kernaux_utoa16(0x123, buffer);
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assert(strcmp(buffer, "0x123") == 0);
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assert(end == str_end(buffer));
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}
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// kernaux_itoa16
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{
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char buffer[KERNAUX_ITOA16_BUFFER_SIZE];
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const char *end;
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end = kernaux_itoa16(0x123, buffer);
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assert(strcmp(buffer, "0x123") == 0);
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assert(end == str_end(buffer));
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end = kernaux_itoa16(-0x123, buffer);
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assert(strcmp(buffer, "-0x123") == 0);
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assert(end == str_end(buffer));
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}
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return 0;
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}
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