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Diffstat (limited to 'test/monniaux/glpk-4.65/src/env/error.c')
| -rw-r--r-- | test/monniaux/glpk-4.65/src/env/error.c | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/test/monniaux/glpk-4.65/src/env/error.c b/test/monniaux/glpk-4.65/src/env/error.c new file mode 100644 index 00000000..a898b768 --- /dev/null +++ b/test/monniaux/glpk-4.65/src/env/error.c @@ -0,0 +1,200 @@ +/* error.c (error handling) */ + +/*********************************************************************** +* This code is part of GLPK (GNU Linear Programming Kit). +* +* Copyright (C) 2000-2015 Andrew Makhorin, Department for Applied +* Informatics, Moscow Aviation Institute, Moscow, Russia. All rights +* reserved. E-mail: <mao@gnu.org>. +* +* GLPK 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. +* +* GLPK 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 GLPK. If not, see <http://www.gnu.org/licenses/>. +***********************************************************************/ + +#include "env.h" + +/*********************************************************************** +* NAME +* +* glp_error - display fatal error message and terminate execution +* +* SYNOPSIS +* +* void glp_error(const char *fmt, ...); +* +* DESCRIPTION +* +* The routine glp_error (implemented as a macro) formats its +* parameters using the format control string fmt, writes the formatted +* message on the terminal, and abnormally terminates the program. */ + +static void errfunc(const char *fmt, ...) +{ ENV *env = get_env_ptr(); + va_list arg; +#if 1 /* 07/XI-2015 */ + env->err_st = 1; +#endif + env->term_out = GLP_ON; + va_start(arg, fmt); + xvprintf(fmt, arg); + va_end(arg); + xprintf("Error detected in file %s at line %d\n", + env->err_file, env->err_line); + if (env->err_hook != NULL) + env->err_hook(env->err_info); + abort(); + exit(EXIT_FAILURE); + /* no return */ +} + +glp_errfunc glp_error_(const char *file, int line) +{ ENV *env = get_env_ptr(); + env->err_file = file; + env->err_line = line; + return errfunc; +} + +#if 1 /* 07/XI-2015 */ +/*********************************************************************** +* NAME +* +* glp_at_error - check for error state +* +* SYNOPSIS +* +* int glp_at_error(void); +* +* DESCRIPTION +* +* The routine glp_at_error checks if the GLPK environment is at error +* state, i.e. if the call to the routine is (indirectly) made from the +* glp_error routine via an user-defined hook routine. +* +* RETURNS +* +* If the GLPK environment is at error state, the routine glp_at_error +* returns non-zero, otherwise zero. */ + +int glp_at_error(void) +{ ENV *env = get_env_ptr(); + return env->err_st; +} +#endif + +/*********************************************************************** +* NAME +* +* glp_assert - check for logical condition +* +* SYNOPSIS +* +* void glp_assert(int expr); +* +* DESCRIPTION +* +* The routine glp_assert (implemented as a macro) checks for a logical +* condition specified by the parameter expr. If the condition is false +* (i.e. the value of expr is zero), the routine writes a message on +* the terminal and abnormally terminates the program. */ + +void glp_assert_(const char *expr, const char *file, int line) +{ glp_error_(file, line)("Assertion failed: %s\n", expr); + /* no return */ +} + +/*********************************************************************** +* NAME +* +* glp_error_hook - install hook to intercept abnormal termination +* +* SYNOPSIS +* +* void glp_error_hook(void (*func)(void *info), void *info); +* +* DESCRIPTION +* +* The routine glp_error_hook installs a user-defined hook routine to +* intercept abnormal termination. +* +* The parameter func specifies the user-defined hook routine. It is +* called from the routine glp_error before the latter calls the abort +* function to abnormally terminate the application program because of +* fatal error. The parameter info is a transit pointer, specified in +* the corresponding call to the routine glp_error_hook; it may be used +* to pass some information to the hook routine. +* +* To uninstall the hook routine the parameters func and info should be +* both specified as NULL. */ + +void glp_error_hook(void (*func)(void *info), void *info) +{ ENV *env = get_env_ptr(); + if (func == NULL) + { env->err_hook = NULL; + env->err_info = NULL; + } + else + { env->err_hook = func; + env->err_info = info; + } + return; +} + +/*********************************************************************** +* NAME +* +* put_err_msg - provide error message string +* +* SYNOPSIS +* +* #include "env.h" +* void put_err_msg(const char *msg); +* +* DESCRIPTION +* +* The routine put_err_msg stores an error message string pointed to by +* msg to the environment block. */ + +void put_err_msg(const char *msg) +{ ENV *env = get_env_ptr(); + int len; + len = strlen(msg); + if (len >= EBUF_SIZE) + len = EBUF_SIZE - 1; + memcpy(env->err_buf, msg, len); + if (len > 0 && env->err_buf[len-1] == '\n') + len--; + env->err_buf[len] = '\0'; + return; +} + +/*********************************************************************** +* NAME +* +* get_err_msg - obtain error message string +* +* SYNOPSIS +* +* #include "env.h" +* const char *get_err_msg(void); +* +* RETURNS +* +* The routine get_err_msg returns a pointer to an error message string +* previously stored by the routine put_err_msg. */ + +const char *get_err_msg(void) +{ ENV *env = get_env_ptr(); + return env->err_buf; +} + +/* eof */ |