diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml deleted file mode 100644 index 510c321..0000000 --- a/.github/workflows/main.yml +++ /dev/null @@ -1,77 +0,0 @@ -on: push -jobs: - build: - runs-on: ubuntu-latest - steps: - - uses: actions/checkout@v4 - - name: Build packages for linux/arm64 platform - run: | - - # Enable an execution of different multi-architecture containers by QEMU - sudo apt-get update -y - sudo apt-get install -y qemu qemu-user-static - docker run --rm --privileged multiarch/qemu-user-static --reset -p yes - - # Build packages on aarch64 architecture - docker run \ - -e DEBIAN_FRONTEND=noninteractive \ - --rm \ - --tty \ - --volume "${PWD}/artifacts:/artifacts" \ - --volume "${GITHUB_WORKSPACE}:${GITHUB_WORKSPACE}" \ - --workdir "${GITHUB_WORKSPACE}" \ - arm64v8/ubuntu:22.04 \ - /bin/bash -c \ - "apt-get update && \ - apt-get -qq install -y build-essential gem rpm ruby-full && \ - gem install fpm package_cloud && \ - make deb && \ - make rpm && \ - cp build/deb/*.deb /artifacts && \ - cp build/rpm/*.rpm /artifacts && \ - rm -rf build" - - - name: Build packages for linux/amd64 platform - run: | - sudo apt-get install -y rpm - sudo gem install fpm package_cloud - make deb - make rpm - sudo cp build/deb/*.deb ${PWD}/artifacts - sudo cp build/rpm/*.rpm ${PWD}/artifacts - - - name: Deploy - if: ${{ github.ref == 'refs/heads/main' }} - run: | - PACKAGECLOUD_REPO="cs50/repo" - - # Deploy deb to ubuntu repos - UBUNTU_REPOS=( xenial yakkety zesty artful bionic cosmic disco eoan focal groovy hirsute impish jammy kinetic lunar noble ) - for repo in "${UBUNTU_REPOS[@]}"; do - package_cloud push "$PACKAGECLOUD_REPO"/ubuntu/"$repo" ${PWD}/artifacts/*.deb - done - - # Deploy rpm to fedora repos - for repo in $(seq 28 40); do - package_cloud push "$PACKAGECLOUD_REPO"/fedora/"$repo" ${PWD}/artifacts/*.rpm - done - env: - PACKAGECLOUD_TOKEN: ${{ secrets.PACKAGECLOUD_TOKEN }} - - - name: Extract version from Makefile - id: make_version - run: | - echo ::set-output name=version::$(make version) - - - name: Create Release - if: ${{ github.ref == 'refs/heads/main' }} - uses: actions/github-script@v7 - with: - github-token: ${{ github.token }} - script: | - github.rest.repos.createRelease({ - owner: context.repo.owner, - repo: context.repo.repo, - tag_name: "v${{ steps.make_version.outputs.version }}", - tag_commitish: "${{ github.sha }}" - }) diff --git a/.gitignore b/.gitignore deleted file mode 100644 index 850f7e0..0000000 --- a/.gitignore +++ /dev/null @@ -1,13 +0,0 @@ -.* -!.github -!.gitignore -!.travis.yml -build/ -debian/changelog -debian/docs/ -debian/files -debian/libcs50 -debian/*.log -hackerrank/ -libcs50-* -libcs50_* diff --git a/LICENSE b/LICENSE deleted file mode 100644 index f288702..0000000 --- a/LICENSE +++ /dev/null @@ -1,674 +0,0 @@ - GNU GENERAL PUBLIC LICENSE - Version 3, 29 June 2007 - - Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/> - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - - Preamble - - The GNU General Public License is a free, copyleft license for -software and other kinds of works. - - The licenses for most software and other practical works are designed -to take away your freedom to share and change the works. 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Limitation of Liability. - - IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING -WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS -THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY -GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE -USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF -DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD -PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), -EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF -SUCH DAMAGES. - - 17. Interpretation of Sections 15 and 16. - - If the disclaimer of warranty and limitation of liability provided -above cannot be given local legal effect according to their terms, -reviewing courts shall apply local law that most closely approximates -an absolute waiver of all civil liability in connection with the -Program, unless a warranty or assumption of liability accompanies a -copy of the Program in return for a fee. - - END OF TERMS AND CONDITIONS - - How to Apply These Terms to Your New Programs - - If you develop a new program, and you want it to be of the greatest -possible use to the public, the best way to achieve this is to make it -free software which everyone can redistribute and change under these terms. - - To do so, attach the following notices to the program. It is safest -to attach them to the start of each source file to most effectively -state the exclusion of warranty; and each file should have at least -the "copyright" line and a pointer to where the full notice is found. - - <one line to give the program's name and a brief idea of what it does.> - Copyright (C) <year> <name of author> - - This program is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see <https://www.gnu.org/licenses/>. - -Also add information on how to contact you by electronic and paper mail. - - If the program does terminal interaction, make it output a short -notice like this when it starts in an interactive mode: - - <program> Copyright (C) <year> <name of author> - This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. - This is free software, and you are welcome to redistribute it - under certain conditions; type `show c' for details. - -The hypothetical commands `show w' and `show c' should show the appropriate -parts of the General Public License. Of course, your program's commands -might be different; for a GUI interface, you would use an "about box". - - You should also get your employer (if you work as a programmer) or school, -if any, to sign a "copyright disclaimer" for the program, if necessary. -For more information on this, and how to apply and follow the GNU GPL, see -<https://www.gnu.org/licenses/>. - - The GNU General Public License does not permit incorporating your program -into proprietary programs. If your program is a subroutine library, you -may consider it more useful to permit linking proprietary applications with -the library. If this is what you want to do, use the GNU Lesser General -Public License instead of this License. But first, please read -<https://www.gnu.org/licenses/why-not-lgpl.html>. diff --git a/Makefile b/Makefile deleted file mode 100644 index 1468c06..0000000 --- a/Makefile +++ /dev/null @@ -1,147 +0,0 @@ -VERSION := 11.0.3 -MAJOR_VERSION := $(shell echo $(VERSION) | cut -d'.' -f1) - -# installation directory (/usr/local by default) -DESTDIR ?= /usr/local -MANDIR ?= share/man/man3 - -SRC := src/cs50.c -INCLUDE := src/cs50.h -MANS := $(wildcard docs/*.3.gz) - -CFLAGS=-Wall -Wextra -Werror -pedantic -std=c11 -BASENAME=libcs50 -LIB_STATIC=$(BASENAME).a -LIB_OBJ=$(BASENAME).o - -OS := $(shell uname) - -# Linux -ifeq ($(OS),Linux) - LIB_BASE := $(BASENAME).so - LIB_MAJOR := $(BASENAME).so.$(MAJOR_VERSION) - LIB_VERSION := $(BASENAME).so.$(VERSION) - LINKER_FLAGS := -Wl,-soname,$(LIB_MAJOR) -# Mac -else ifeq ($(OS),Darwin) - LIB_BASE := $(BASENAME).dylib - LIB_MAJOR := $(BASENAME)-$(MAJOR_VERSION).dylib - LIB_VERSION := $(BASENAME)-$(VERSION).dylib - LINKER_FLAGS := -Wl,-install_name,$(LIB_VERSION) -endif - -LIBS := $(addprefix build/lib/, $(LIB_BASE) $(LIB_MAJOR) $(LIB_VERSION)) - -.PHONY: all -all: $(LIBS) $(MANS) - -$(LIBS): $(SRC) $(INCLUDE) Makefile - $(CC) $(CFLAGS) -fPIC -shared $(LINKER_FLAGS) -o $(LIB_VERSION) $(SRC) - $(CC) $(CFLAGS) -c -o $(LIB_OBJ) $(SRC) - ar rcs $(LIB_STATIC) $(LIB_OBJ) - chmod 644 $(LIB_STATIC) - rm -f $(LIB_OBJ) - ln -sf $(LIB_VERSION) $(LIB_BASE) - mkdir -p $(addprefix build/, include lib src) - install -m 644 $(SRC) build/src - install -m 644 $(INCLUDE) build/include - mv $(LIB_VERSION) $(LIB_BASE) $(LIB_STATIC) build/lib - -build/lib/$(LIB_BASE): build/lib/$(LIB_MAJOR) - -build/lib/$(LIB_MAJOR): build/lib/$(LIB_VERSION) - -.PHONY: install -install: all - mkdir -p $(addprefix $(DESTDIR)/, src lib include $(MANDIR)) - cp -R $(filter-out deb, $(wildcard build/*)) $(DESTDIR) - cp -R $(MANS) $(DESTDIR)/$(MANDIR) - -ifeq ($(OS),Linux) - ldconfig $(DESTDIR)/lib -endif - -.PHONY: clean -clean: - rm -rf build - -.PHONY: deb -deb: $(LIBS) $(MANS) - rm -rf build/deb - - # temporary fpm source - mkdir -p build/deb/$(BASENAME)/usr - cp -r $(addprefix build/, include lib src) build/deb/$(BASENAME)/usr - mkdir -p build/deb/$(BASENAME)/usr/share/man/man3 - chmod 755 build/deb/$(BASENAME)/usr/share/man/man3 - cp -r $(MANS) build/deb/$(BASENAME)/usr/share/man/man3 - chmod 644 build/deb/$(BASENAME)/usr/share/man/man3/* - fpm \ - --after-install postinst \ - --after-remove postrm \ - --category libs \ - --chdir build/deb/$(BASENAME) \ - --conflicts lib50-c \ - --conflicts $(BASENAME) \ - --conflicts library50-c \ - --deb-no-default-config-files \ - --deb-priority optional \ - --description "CS50 library for C" \ - --input-type dir \ - --license "MIT" \ - --maintainer "CS50 <sysadmins@cs50.harvard.edu>" \ - --name $(BASENAME) \ - --output-type deb \ - --package build/deb \ - --provides lib50-c \ - --provides $(BASENAME) \ - --provides library50-c \ - --replaces lib50-c \ - --replaces $(BASENAME) \ - --replaces library50-c \ - --url https://github.com/cs50/libcs50 \ - --vendor CS50 \ - --version $(VERSION) \ - . - - rm -rf build/deb/$(BASENAME) - -rpm: $(LIBS) $(MANS) - rm -rf build/rpm - - # Temporary fpm source - mkdir -p build/rpm/$(BASENAME)/usr - cp -r $(addprefix build/, include lib src) build/rpm/$(BASENAME)/usr - mkdir -p build/rpm/$(BASENAME)/usr/share/man/man3 - cp -r $(MANS) build/rpm/$(BASENAME)/usr/share/man/man3 - fpm \ - --after-install post \ - --after-remove postun \ - --category libs \ - --chdir build/rpm/$(BASENAME) \ - --description "CS50 library for C" \ - --input-type dir \ - --license "MIT" \ - --maintainer "CS50 <sysadmins@cs50.harvard.edu>" \ - --name $(BASENAME) \ - --output-type rpm \ - --package build/rpm \ - --provides $(BASENAME) \ - --url https://github.com/cs50/libcs50 \ - --vendor CS50 \ - --version $(VERSION) \ - . - - rm -rf build/rpm/$(BASENAME) - -# Used by .travis.yml -.PHONY: version -version: - @echo $(VERSION) - -.PHONY: uninstall -uninstall: - rm -f $(DESTDIR)/include/cs50.h - rm -rf $(DESTDIR)/src/cs50.c - rm -f $(addprefix $(DESTDIR)/lib/, $(LIB_BASE) $(LIB_MAJOR) $(LIB_VERSION)) - rm -f $(addprefix $(DESTDIR)/$(MANDIR)/, get_*.3) diff --git a/README.md b/README.md deleted file mode 100644 index 3f9e611..0000000 --- a/README.md +++ /dev/null @@ -1,79 +0,0 @@ -# CS50 Library for C - -[](https://travis-ci.org/cs50/libcs50) - -## Development - -`make`: builds dynamic library - -`make deb`: builds source deb - -`make install`: installs the library under `/usr/local` by default (set `DESTDIR` to change that) - -## Installation - -### Ubuntu - -``` -$ curl -s https://packagecloud.io/install/repositories/cs50/repo/script.deb.sh | sudo bash -$ sudo apt-get install libcs50 -``` - -### Fedora - -``` -$ curl -s https://packagecloud.io/install/repositories/cs50/repo/script.rpm.sh | sudo bash -$ yum install libcs50 -``` - -### From Source (Linux and Mac) - -1. Download the latest release from https://github.com/cs50/libcs50/releases -1. Extract `libcs50-*.*` -1. `cd libcs50-*` -1. `sudo make install` - -By default, we install to `/usr/local`. If you'd like to change the installation location, run -`sudo DESTDIR=/path/to/install make install` as desired. - -## Troubleshooting -1. If, when compiling a program, you see `/usr/bin/ld: cannot find -lcs50`: -Add `export LIBRARY_PATH=/usr/local/lib` to your `.bashrc`. -1. If, when compiling a program, you see `fatal error: 'cs50.h' file not found`: -Add `export C_INCLUDE_PATH=/usr/local/include` to your `.bashrc`. -1. If, when executing a program, you see `error while loading shared libraries: libcs50.so.8: cannot open shared object file: No such file or directory`: -Add `export LD_LIBRARY_PATH=/usr/local/lib` to your `.bashrc`. - -Close and reopen any terminal windows. - -## Usage - -Link with `-lcs50`. - - #include <cs50.h> - - ... - char c = get_char("Prompt: "); - double d = get_double("Prompt: "); - float f = get_float("Prompt: "); - int i = get_int("Prompt: "); - long l = get_long("Prompt: "); - string s = get_string("Prompt: "); - - // deprecated as of fall 2017 - long long ll = get_long_long("Prompt: "); - -## Documentation - -See `man get_*` after installation, or [CS50 Reference](https://reference.cs50.net/cs50/)! - -## TODO - -* Add tests. - -## Contributors - -* [Chad Sharp](https://github.com/crossroads1112) -* [Emrul Hasan Zawad](https://github.com/ehzShelter) -* [Ivan Jasenov](https://github.com/IvanJasenov) -* [Kareem Zidane](https://github.com/kzidane) diff --git a/docs/get_char.3.gz b/docs/get_char.3.gz deleted file mode 100644 index f92f319..0000000 Binary files a/docs/get_char.3.gz and /dev/null differ diff --git a/docs/get_double.3.gz b/docs/get_double.3.gz deleted file mode 100644 index 730b8d2..0000000 Binary files a/docs/get_double.3.gz and /dev/null differ diff --git a/docs/get_float.3.gz b/docs/get_float.3.gz deleted file mode 100644 index 8705abe..0000000 Binary files a/docs/get_float.3.gz and /dev/null differ diff --git a/docs/get_int.3.gz b/docs/get_int.3.gz deleted file mode 100644 index ebb742e..0000000 Binary files a/docs/get_int.3.gz and /dev/null differ diff --git a/docs/get_long.3.gz b/docs/get_long.3.gz deleted file mode 100644 index 90002f1..0000000 Binary files a/docs/get_long.3.gz and /dev/null differ diff --git a/docs/get_long_long.3.gz b/docs/get_long_long.3.gz deleted file mode 100644 index 28b96b7..0000000 Binary files a/docs/get_long_long.3.gz and /dev/null differ diff --git a/docs/get_string.3.gz b/docs/get_string.3.gz deleted file mode 100644 index abbe1f9..0000000 Binary files a/docs/get_string.3.gz and /dev/null differ diff --git a/post b/post deleted file mode 100644 index 38bbe34..0000000 --- a/post +++ /dev/null @@ -1,8 +0,0 @@ -#!/bin/sh - -case "$1" in - # initial installation or upgrade - 1|2) - ldconfig /usr/local/lib - ;; -esac diff --git a/postinst b/postinst deleted file mode 100644 index 501a3c1..0000000 --- a/postinst +++ /dev/null @@ -1,33 +0,0 @@ -#!/bin/sh -# postinst script for libcs50 -# -# see: dh_installdeb(1) - -set -e - -# summary of how this script can be called: -# * <postinst> `configure' <most-recently-configured-version> -# * <old-postinst> `abort-upgrade' <new version> -# * <conflictor's-postinst> `abort-remove' `in-favour' <package> -# <new-version> -# * <postinst> `abort-remove' -# * <deconfigured's-postinst> `abort-deconfigure' `in-favour' -# <failed-install-package> <version> `removing' -# <conflicting-package> <version> -# for details, see http://www.debian.org/doc/debian-policy/ or -# the debian-policy package - - -case "$1" in - configure) - ldconfig - ;; - - abort-upgrade|abort-remove|abort-deconfigure) - ;; - - *) - echo "postinst called with unknown argument \`$1'" >&2 - exit 1 - ;; -esac diff --git a/postrm b/postrm deleted file mode 100644 index 8a084cd..0000000 --- a/postrm +++ /dev/null @@ -1,34 +0,0 @@ -#!/bin/sh -# postrm script for libcs50 -# -# see: dh_installdeb(1) - -set -e - -# summary of how this script can be called: -# * <postrm> `remove' -# * <postrm> `purge' -# * <old-postrm> `upgrade' <new-version> -# * <new-postrm> `failed-upgrade' <old-version> -# * <new-postrm> `abort-install' -# * <new-postrm> `abort-install' <old-version> -# * <new-postrm> `abort-upgrade' <old-version> -# * <disappearer's-postrm> `disappear' <overwriter> -# <overwriter-version> -# for details, see http://www.debian.org/doc/debian-policy/ or -# the debian-policy package - - -case "$1" in - remove) - ldconfig - ;; - - purge|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear) - ;; - - *) - echo "postrm called with unknown argument \`$1'" >&2 - exit 1 - ;; -esac diff --git a/postun b/postun deleted file mode 100644 index 4ddbc8b..0000000 --- a/postun +++ /dev/null @@ -1,12 +0,0 @@ -#!/bin/sh - -case "$1" in - # uninstallation - 0) - ldconfig /usr/local/lib - ;; - - # upgrade - 1) - ;; -esac diff --git a/read_file.c b/read_file.c new file mode 100644 index 0000000..3ed59c4 --- /dev/null +++ b/read_file.c @@ -0,0 +1,130 @@ +#include <stdbool.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> + +typedef char *string; + +/** + * TODO + */ +string *read_file(const string pathname) +{ + // Open file + FILE *file = fopen(pathname, "r"); + if (file == NULL) + { + return NULL; + } + + // Allocate space for NULL-terminated array of lines + string *lines = malloc(sizeof(string *)); + if (lines == NULL) + { + return NULL; + } + lines[0] = NULL; + size_t size = 1; + + // Read chars + long start = 0, end = 0; + while (true) + { + // Read char + int c = fgetc(file); + + // Check for line ending + if (c == EOF || c == '\r' || c == '\n') + { + // If we've read a line with at least one char + if (start != end) + { + // Allocate space for line + string line = malloc(end - start + 1); + if (line == NULL) + { + // TODO + return NULL; + } + + // Read string + if (fseek(file, start, SEEK_SET) == -1 || fread(line, end - start, 1, file) != 1) + { + // TODO + return NULL; + } + + // Terminate string + line[end - start] = '\0'; + + // Extend array + if (size == SIZE_MAX) + { + // TODO + return NULL; + } + string *temp = realloc(lines, ++size); + if (temp == NULL) + { + // TODO + return NULL; + } + temp[size - 2] = line; + temp[size - 1] = NULL; + lines = temp; + + // Start of next line, if any + start = end = end + 1; + + // Check for CR + if (c == '\r') + { + // Check for LF + int d = fgetc(file); + if (d == '\n') + { + // Ignore LF + start = end = end + 1; + } + else if (d != EOF) + { + // Unget char + if (ungetc(d, file) == EOF) + { + // TODO + } + } + } + } + + // End of file + if (c == EOF) + { + break; + } + } + + // Not at end of file or line + else + { + end++; + } + } + + // Return array of lines + return lines; +} + +int main(void) +{ + string *lines = read_file("read_file.txt"); + if (lines == NULL) + { + printf("ERROR\n"); + exit(1); + } + for (int i = 0; lines[i] != NULL; i++) + { + printf("%s\n", lines[i]); + } +} diff --git a/read_file.txt b/read_file.txt new file mode 100644 index 0000000..1c385c1 --- /dev/null +++ b/read_file.txt @@ -0,0 +1 @@ +foo bar baz \ No newline at end of file diff --git a/src/cs50.c b/src/cs50.c deleted file mode 100644 index 728fbfa..0000000 --- a/src/cs50.c +++ /dev/null @@ -1,490 +0,0 @@ -/** - * CS50 Library for C - * https://github.com/cs50/libcs50 - * - * Based on Eric Roberts' genlib.c and simpio.c. - * - * Copyright (c) 2023 - * All rights reserved - * - * BSD 3-Clause License - * http://www.opensource.org/licenses/BSD-3-Clause - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of CS50 nor the names of its contributors may be used - * to endorse or promote products derived from this software without - * specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS - * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED - * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A - * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED - * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#define _GNU_SOURCE - -#include <ctype.h> -#include <errno.h> -#include <float.h> -#include <limits.h> -#include <math.h> -#include <stdarg.h> -#include <stdint.h> -#include <stdbool.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "cs50.h" - -// Disable warnings from some compilers about the way we use variadic arguments -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wformat-security" - -/** - * Number of strings allocated by get_string. - */ -static size_t allocations = 0; - -/** - * Array of strings allocated by get_string. - */ -static string *strings = NULL; - -/** - * Prompts user for a line of text from standard input and returns - * it as a string (char *), sans trailing line ending. Supports - * CR (\r), LF (\n), and CRLF (\r\n) as line endings. If user - * inputs only a line ending, returns "", not NULL. Returns NULL - * upon error or no input whatsoever (i.e., just EOF). Stores string - * on heap, but library's destructor frees memory on program's exit. - */ -#undef get_string -string get_string(va_list *args, const char *format, ...) -{ - // Check whether we have room for another string - if (allocations == SIZE_MAX / sizeof (string)) - { - return NULL; - } - - // Growable buffer for characters - string buffer = NULL; - - // Capacity of buffer - size_t capacity = 0; - - // Number of characters actually in buffer - size_t size = 0; - - // Character read or EOF - int c; - - // Prompt user - if (format != NULL) - { - // Initialize variadic argument list - va_list ap; - - // Students' code will pass in printf-like arguments as variadic - // parameters. The student-facing get_string macro always sets args to - // NULL. In this case, we initialize the list of variadic parameters - // the standard way with va_start. - if (args == NULL) - { - va_start(ap, format); - } - - // When functions in this library call get_string they will have - // already stored their variadic parameters in a `va_list` and so they - // just pass that in by pointer. - else - { - // Put a copy of argument list in ap so it is not consumed by vprintf - va_copy(ap, *args); - } - - // Print prompt - vprintf(format, ap); - - // Clean up argument list - va_end(ap); - } - - // Iteratively get characters from standard input, checking for CR (Mac OS), LF (Linux), and CRLF (Windows) - while ((c = fgetc(stdin)) != '\r' && c != '\n' && c != EOF) - { - // Grow buffer if necessary - if (size + 1 > capacity) - { - // Increment buffer's capacity if possible - if (capacity < SIZE_MAX) - { - capacity++; - } - else - { - free(buffer); - return NULL; - } - - // Extend buffer's capacity - string temp = realloc(buffer, capacity); - if (temp == NULL) - { - free(buffer); - return NULL; - } - buffer = temp; - } - - // Append current character to buffer - buffer[size++] = c; - } - - // Check whether user provided no input - if (size == 0 && c == EOF) - { - return NULL; - } - - // Check whether user provided too much input (leaving no room for trailing NUL) - if (size == SIZE_MAX) - { - free(buffer); - return NULL; - } - - // If last character read was CR, try to read LF as well - if (c == '\r' && (c = fgetc(stdin)) != '\n') - { - // Return NULL if character can't be pushed back onto standard input - if (c != EOF && ungetc(c, stdin) == EOF) - { - free(buffer); - return NULL; - } - } - - // Minimize buffer - string s = realloc(buffer, size + 1); - if (s == NULL) - { - free(buffer); - return NULL; - } - - // Terminate string - s[size] = '\0'; - - // Resize array so as to append string - string *tmp = realloc(strings, sizeof (string) * (allocations + 1)); - if (tmp == NULL) - { - free(s); - return NULL; - } - strings = tmp; - - // Append string to array - strings[allocations] = s; - allocations++; - - // Return string - return s; -} - -/** - * Prompts user for a line of text from standard input and returns the - * equivalent char; if text is not a single char, user is prompted - * to retry. If line can't be read, returns CHAR_MAX. - */ -char get_char(const char *format, ...) -{ - va_list ap; - va_start(ap, format); - - // Try to get a char from user - while (true) - { - // Get line of text, returning CHAR_MAX on failure - string line = get_string(&ap, format); - if (line == NULL) - { - va_end(ap); - return CHAR_MAX; - } - - // Return a char if only a char was provided - char c, d; - if (sscanf(line, "%c%c", &c, &d) == 1) - { - va_end(ap); - return c; - } - } -} - -/** - * Prompts user for a line of text from standard input and returns the - * equivalent double as precisely as possible; if text does not represent - * a double or if value would cause underflow or overflow, user is - * prompted to retry. If line can't be read, returns DBL_MAX. - */ -double get_double(const char *format, ...) -{ - va_list ap; - va_start(ap, format); - - // Try to get a double from user - while (true) - { - // Get line of text, returning DBL_MAX on failure - string line = get_string(&ap, format); - if (line == NULL) - { - va_end(ap); - return DBL_MAX; - } - - // Return a double if only a double was provided - if (strlen(line) > 0 && !isspace((unsigned char) line[0])) - { - char *tail; - errno = 0; - double d = strtod(line, &tail); - if (errno == 0 && *tail == '\0' && isfinite(d) != 0 && d < DBL_MAX) - { - // Disallow hexadecimal and exponents - if (strcspn(line, "XxEePp") == strlen(line)) - { - va_end(ap); - return d; - } - } - } - } -} - -/** - * Prompts user for a line of text from standard input and returns the - * equivalent float as precisely as possible; if text does not represent - * a float or if value would cause underflow or overflow, user is prompted - * to retry. If line can't be read, returns FLT_MAX. - */ -float get_float(const char *format, ...) -{ - va_list ap; - va_start(ap, format); - - // Try to get a float from user - while (true) - { - // Get line of text, returning FLT_MAX on failure - string line = get_string(&ap, format); - - if (line == NULL) - { - va_end(ap); - return FLT_MAX; - } - - // Return a float if only a float was provided - if (strlen(line) > 0 && !isspace((unsigned char) line[0])) - { - char *tail; - errno = 0; - float f = strtof(line, &tail); - if (errno == 0 && *tail == '\0' && isfinite(f) != 0 && f < FLT_MAX) - { - // Disallow hexadecimal and exponents - if (strcspn(line, "XxEePp") == strlen(line)) - { - va_end(ap); - return f; - } - } - } - } -} - -/** - * Prompts user for a line of text from standard input and returns the - * equivalent int; if text does not represent an int in [-2^31, 2^31 - 1) - * or would cause underflow or overflow, user is prompted to retry. If line - * can't be read, returns INT_MAX. - */ -int get_int(const char *format, ...) -{ - va_list ap; - va_start(ap, format); - - // Try to get an int from user - while (true) - { - // Get line of text, returning INT_MAX on failure - string line = get_string(&ap, format); - if (line == NULL) - { - va_end(ap); - return INT_MAX; - } - - // Return an int if only an int (in range) was provided - if (strlen(line) > 0 && !isspace((unsigned char) line[0])) - { - char *tail; - errno = 0; - long n = strtol(line, &tail, 10); - if (errno == 0 && *tail == '\0' && n >= INT_MIN && n < INT_MAX) - { - va_end(ap); - return n; - } - } - } -} - -/** - * Prompts user for a line of text from standard input and returns the - * equivalent long; if text does not represent a long in - * [-2^63, 2^63 - 1) or would cause underflow or overflow, user is - * prompted to retry. If line can't be read, returns LONG_MAX. - */ -long get_long(const char *format, ...) -{ - va_list ap; - va_start(ap, format); - - // Try to get a long from user - while (true) - { - // Get line of text, returning LONG_MAX on failure - string line = get_string(&ap, format); - if (line == NULL) - { - va_end(ap); - return LONG_MAX; - } - - // Return a long if only a long (in range) was provided - if (strlen(line) > 0 && !isspace((unsigned char) line[0])) - { - char *tail; - errno = 0; - long n = strtol(line, &tail, 10); - if (errno == 0 && *tail == '\0' && n < LONG_MAX) - { - va_end(ap); - return n; - } - } - } -} - -/** - * Prompts user for a line of text from standard input and returns the - * equivalent long long; if text does not represent a long long in - * [-2^63, 2^63 - 1) or would cause underflow or overflow, user is - * prompted to retry. If line can't be read, returns LLONG_MAX. - */ -long long get_long_long(const char *format, ...) -{ - va_list ap; - va_start(ap, format); - - // Try to get a long long from user - while (true) - { - // Get line of text, returning LLONG_MAX on failure - string line = get_string(&ap, format); - if (line == NULL) - { - va_end(ap); - return LLONG_MAX; - } - - // Return a long long if only a long long (in range) was provided - if (strlen(line) > 0 && !isspace((unsigned char) line[0])) - { - char *tail; - errno = 0; - long long n = strtoll(line, &tail, 10); - if (errno == 0 && *tail == '\0' && n < LLONG_MAX) - { - va_end(ap); - return n; - } - } - } -} - -/** - * Called automatically after execution exits main. - */ -static void teardown(void) -{ - // Free library's strings - if (strings != NULL) - { - for (size_t i = 0; i < allocations; i++) - { - free(strings[i]); - } - free(strings); - } -} - -/** - * Preprocessor magic to make initializers work somewhat portably - * Modified from http://stackoverflow.com/questions/1113409/attribute-constructor-equivalent-in-vc - */ -#if defined (_MSC_VER) // MSVC - #pragma section(".CRT$XCU",read) - #define INITIALIZER_(FUNC,PREFIX) \ - static void FUNC(void); \ - __declspec(allocate(".CRT$XCU")) void (*FUNC##_)(void) = FUNC; \ - __pragma(comment(linker,"/include:" PREFIX #FUNC "_")) \ - static void FUNC(void) - #ifdef _WIN64 - #define INITIALIZER(FUNC) INITIALIZER_(FUNC,"") - #else - #define INITIALIZER(FUNC) INITIALIZER_(FUNC,"_") - #endif -#elif defined (__GNUC__) // GCC, Clang, MinGW - #define INITIALIZER(FUNC) \ - static void FUNC(void) __attribute__((constructor)); \ - static void FUNC(void) -#else - #error The CS50 library requires some compiler-specific features, \ - but we do not recognize this compiler/version. Please file an issue at \ - https://github.com/cs50/libcs50 -#endif - -/** - * Called automatically before execution enters main. - */ -INITIALIZER(setup) -{ - // Disable buffering for standard output - setvbuf(stdout, NULL, _IONBF, 0); - atexit(teardown); -} - -// Re-enable warnings -#pragma GCC diagnostic pop diff --git a/src/cs50.h b/src/cs50.h deleted file mode 100644 index fc58db5..0000000 --- a/src/cs50.h +++ /dev/null @@ -1,111 +0,0 @@ -/** - * CS50 Library for C - * https://github.com/cs50/libcs50 - * - * Based on Eric Roberts' genlib.c and simpio.c. - * - * Copyright (c) 2023 - * All rights reserved - * - * BSD 3-Clause License - * http://www.opensource.org/licenses/BSD-3-Clause - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of CS50 nor the names of its contributors may be used - * to endorse or promote products derived from this software without - * specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS - * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED - * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A - * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED - * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef CS50_H -#define CS50_H - -#include <float.h> -#include <limits.h> -#include <stdarg.h> -#include <stdbool.h> -#include <stddef.h> - -/** - * Our own type for (pointers to) strings. - */ -typedef char *string; - -/** - * Prompts user for a line of text from standard input and returns the - * equivalent char; if text is not a single char, user is prompted - * to retry. If line can't be read, returns CHAR_MAX. - */ -char get_char(const char *format, ...) __attribute__((format(printf, 1, 2))); - -/** - * Prompts user for a line of text from standard input and returns the - * equivalent double as precisely as possible; if text does not represent - * a double or if value would cause underflow or overflow, user is - * prompted to retry. If line can't be read, returns DBL_MAX. - */ -double get_double(const char *format, ...) __attribute__((format(printf, 1, 2))); - -/** - * Prompts user for a line of text from standard input and returns the - * equivalent float as precisely as possible; if text does not represent - * a float or if value would cause underflow or overflow, user is prompted - * to retry. If line can't be read, returns FLT_MAX. - */ -float get_float(const char *format, ...) __attribute__((format(printf, 1, 2))); - -/** - * Prompts user for a line of text from standard input and returns the - * equivalent int; if text does not represent an int in [-2^31, 2^31 - 1) - * or would cause underflow or overflow, user is prompted to retry. If line - * can't be read, returns INT_MAX. - */ -int get_int(const char *format, ...) __attribute__((format(printf, 1, 2))); - -/** - * Prompts user for a line of text from standard input and returns the - * equivalent long; if text does not represent a long in - * [-2^63, 2^63 - 1) or would cause underflow or overflow, user is - * prompted to retry. If line can't be read, returns LONG_MAX. - */ -long get_long(const char *format, ...) __attribute__((format(printf, 1, 2))); - -/** - * Prompts user for a line of text from standard input and returns the - * equivalent long long; if text does not represent a long long in - * [-2^63, 2^63 - 1) or would cause underflow or overflow, user is - * prompted to retry. If line can't be read, returns LLONG_MAX. - */ -long long get_long_long(const char *format, ...) __attribute__((format(printf, 1, 2))); - -/** - * Prompts user for a line of text from standard input and returns - * it as a string (char *), sans trailing line ending. Supports - * CR (\r), LF (\n), and CRLF (\r\n) as line endings. If user - * inputs only a line ending, returns "", not NULL. Returns NULL - * upon error or no input whatsoever (i.e., just EOF). Stores string - * on heap, but library's destructor frees memory on program's exit. - */ -string get_string(va_list *args, const char *format, ...) __attribute__((format(printf, 2, 3))); -#define get_string(...) get_string(NULL, __VA_ARGS__) - -#endif diff --git a/tests/get_int.c b/tests/get_int.c deleted file mode 100644 index 80eab12..0000000 --- a/tests/get_int.c +++ /dev/null @@ -1,10 +0,0 @@ -#include <stdio.h> -#include "cs50.h" - -int main(void) -{ - int i = get_int(); - printf("%i\n", i); - int j = get_int("Foo: "); - printf("%i\n", j); -} diff --git a/tests/hackerrank.c b/tests/hackerrank.c deleted file mode 100644 index 8b6789b..0000000 --- a/tests/hackerrank.c +++ /dev/null @@ -1,8 +0,0 @@ -#include "cs50.h" -#include <stdio.h> - -int main(void) -{ - string s = get_string(); - printf("hello, %s\n", s); -}