Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report
Current view: top level - language - es.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30786-ffec283a2b) Lines: 2009 2799 71.8 %
Date: 2026-04-08 09:25:27 Functions: 248 310 80.0 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
GENtoGENstr_nospace 0
GENtoTeXstr 0
_initout 0
blancs 0
brute 0
dbg 0
dbgGEN 0
dbg_addr 0
dbg_pari_heap 0
dbg_word 0
dft_help 0
do_append 0
env_ok 0
err_flush 0
fputGEN_pariout 0
get_file 0
gp_dlopen 0
gp_embedded 0
gp_embedded_init 0
gp_getenv 0
gp_read_from_input 0
gp_read_str_history 0
gp_read_str_multiline 0
gpinstall 0
init_unique 0
install0 0
matbrute 0
ok_pipe 0
outmat 0
output 0
pari_ask_confirm 0
pari_dir_exists 0
pari_file_exists 0
pari_fopen 0
pari_fopen_or_fail 0
pari_fprintf 0
pari_get_histrtime 0
pari_get_histtime 0
pari_is_rwx 0
pari_nb_hist 0
pari_open_file 0
pari_safefopen 0
pari_tmp_dir 0
pari_unique_dir 0
pari_unique_filename 0
pari_unique_filename_suffix 0
pari_unlink 0
pari_vfprintf 0
print_coef 0
print_entree 0
print_functions_hash 0
prints 0
str_addr 0
strexpand 0
string_gets 0
strip_last_nl 0
switchout 0
texe 0
texparen 0
try_dlopen 0
uordinal 0
vsigne 0
GENtostr 4
externstr 4
gp_fileextern 4
gp_readvec_file 4
gpextern 4
readstr 4
strftime_expand 4
writetex 4
printp 7
switchin_last 7
term_height 7
term_height_intern 7
warning0 7
get_lines 8
try_pipe 8
write1 8
writeGEN 8
check_magic 12
decode_color 12
gpwritebin 12
is_sizeoflong_ok 12
log10_2 12
readbin 12
write_magic 12
writebin 12
error0 14
pari_sprint0 14
_cfwrite 16
file_is_binary 16
rdstr 16
writenamedGEN 16
wrstr 16
gp_read_file 19
forpath_init 20
forpath_next 20
path_is_absolute 20
try_name 20
try_open 20
pari_histtime 21
printsep1 21
is_long_ok 24
rdGEN 24
wrGEN 24
switchin 27
gpsystem 28
check_compress 36
readobj 36
check_secure 40
printtex 42
gp_fileflush 44
gp_filewrite 48
killallfiles 49
gp_fileflush0 52
gp_fileopen 52
gp_filewrite1 52
is_dir_stat 55
pari_is_dir 55
get_free_gp_file 56
gp_fileclose 56
gp_filereadstr 56
new_gp_file 56
gp_fileread 64
gtolong_OK 77
is_magic_ok 79
write0 82
rd_long 88
pari_is_file 94
print0_file 94
switchout_get_FILE 94
wr 94
normalOutS 99
get_texvar 105
wr_texnome 105
pari_fread_longs 112
wr_long 112
wr_lead_texnome 119
wr_check 122
strtex 126
zerotostr 126
_lfwrite 136
times_texnome 140
_fwrite 152
texnome 203
texVpowE 210
texexpo 210
gp_readvec_stream 305
texi 319
check_gp_file 320
err_printf 355
mat0n 392
texi_sign 516
real0tostr_width_frac 661
term_color 693
strprintf 721
GENtoGENstr 742
printf0 742
GENtostr_fun 746
pari_printf 753
pari_vprintf 753
printsep 1323
dopr_arg_vector 1463
gsprintf 1603
real0tostr 1651
v_get_arg 1876
pari_close_files 1880
pari_close_homedir 1880
initout 1890
pari_init_homedir 1890
pari_stdin_isatty 1890
resetout 1890
gvsprintf 2000
str_alloc0 2115
runaway_close 2197
in_help 2414
GENtostr_raw 3710
pari_get_homedir 3764
print_precontext 4613
print_context 5410
_expand_env 5777
_path_expand 5777
path_expand 5777
itostr 6804
fix_buffer 7413
new_line 7919
wr_vecsmall 8082
gp_read_stream 8887
cxq_init 11032
gp_filter 11039
Str 11070
RgV_to_str 11196
Str_fun 11196
delete_buffer 11258
new_buffer 11258
out_printf 12690
filestate_restore 13165
print_errcontext 13447
tmp_restore 13617
out_vprintf 14733
quote_string 14942
zeros 15411
paren 15862
print_prefixed_text 18846
pari_sprintf 19153
print1 20279
printfl_1 20279
out_print1 20307
term_width 22932
term_width_intern 22932
GENtostr_unquoted 26325
stack_GENtostr_fun_unquoted 26325
os_getenv 26727
absrtostr 34671
pari_get_infile 40361
pari_fclose 40383
pari_fopengz 40404
newfile 40460
pari_kill_file 40460
normalErrF 41182
stack_sprintf 42707
isdenom 53018
gen_output 61506
gen_output_fun 61506
pari_get_hist 61510
matbruti 61517
history 61552
pari_puts 62986
init_linewrap 63270
out_term_color 68468
stack_GENtostr_fun 72817
pari_vsprintf 78593
sm_dopr 80056
term_get_color 83304
get_var 99245
wr_lead_monome 100092
pari_putc 105388
pari_add_hist 108043
print 111602
printfl_0 111651
pari_fread_chars 112212
out_print0 112974
pari_last_was_newline 122103
absrtostr_width_frac 142743
get_sigd 143044
fmtreal 143128
shift_add 143485
str_print0 144585
filestate_save 146051
fmtnum 146225
str_printf 148096
pari_set_last_newline 150389
fmtstr 159464
str_putscut 159464
wr_dec 160345
strlen_real 173796
wr_monome 175651
ex10 177379
times_monome 180131
str_long 183307
str_ulong 183307
puts_lw 199293
pari_flush 202390
get_fun 206095
normalOutF 216443
monome 219932
str_arg_vprintf 228151
VpowE 234926
wrexpo 234926
print_gcoef 237849
_flush_log 257625
dosign 287379
outpad 289199
isfactor 289223
str_init 302423
normalErrS 311671
_fputs 311770
_puts_log 311770
pari_thread_close_files 373687
pari_init_files 374667
popinfile 375371
filestate_close 384067
out_puts 432300
str_absint 577959
str_alloc 619119
normalErrC 626429
out_putc 733400
kill_file_stack 742777
itostr_sign 759865
numdig 759865
gp_read_stream_buf 804589
init_filtre 806543
input_loop 950336
bruti_intern 988304
file_input 999291
file_getline 999367
filtre0 1008133
utodec 1146404
set_last_newline 1163019
bruti 1170399
bruti_sign 1400853
print_0_or_pm1 1401369
isone 1623354
isnull_for_pol 1750783
str_puts 2502501
isnull 3669390
putc_lw 9934770
normalOutC 10013034
_putc_log 10639463
str_putc 15440041

Generated by: LCOV version 1.16