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 - init.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30764-6b81f1f3fa) Lines: 1139 1487 76.6 %
Date: 2026-03-23 09:27:26 Functions: 132 162 81.5 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
bl_rotleft 66453765
bl_rotright 60855759
blockbalance 2849913849
blockdelete 1575584783
blockheight 11864097230
blockinsert 1728672805
cgetg_copy_avma 1061765835
cgetlist_avma 620
chk_gc_upto 0
clone_lock 370876538
clone_unlock 311624988
clone_unlock_deep 59318160
clonesearch 741559286
copy_bin 473011193
copy_bin_canon 24
dbg_fill_stack 0
dbg_gc_upto 0
dbg_stack 0
debug_stack 0
dflt_err_recover 0
dflt_pari_quit 0
dflt_sigint_fun 0
dochk_gc_upto 0
err_init 14032
err_init_msg 13897
err_recover 13069
errname 27109
export_add 59
export_del 24
export_get 1500
exportall 6
f_getheap 6664
fix_height 3082177912
fix_size 750288
gc_all_unsafe 27379244
gc_dec 6002555941
gc_slice_unsafe 330414620
gc_stack_update 1233995608
gclone 237434653
gclone_refc 0
gcloneref 37888
gcopy 4791298026
gcopy_av0 4034991293
gcopy_av0_canon 84
gcopy_avma 3382997138
gcopy_lg 742
gdisplay 3703
gerepile 0
getabstime 1890
getdebugvar 372814
getheap 84
getstack 7
gettime 3710
getwalltime 0
gp_context_restore 13144
gp_context_save 145967
gsizebyte 175
gsizeclone 237434602
gsizeclone_i 3476396153
gsizeword 2214450
gunclone 388533771
gunclone_deep 3278965173
icopy_avma_canon 12
init_universal_constants 1890
is_in_block 234008889
list_internal_copy 7019
listassign 7019
listcopy 730
listinit 0
msgtimer 0
name_numerr 0
new_chunk_resize 18
newblock 238282562
numerr_name 27109
obj_check 6033696
obj_checkbuild 1507421
obj_checkbuild_padicprec 539
obj_checkbuild_prec 568477
obj_checkbuild_realprec 399100
obj_free 187740
obj_init 2533403
obj_insert 2661637
obj_insert_shallow 173571
obj_reinit 42
os_signal 20730
pari_add_defaults_module 1890
pari_add_module 1880
pari_close 1880
pari_close_blocks 367739
pari_close_export 1880
pari_close_opts 1880
pari_daemon 76
pari_err 56841
pari_err2GEN 56829
pari_err2str 21873
pari_err_display 13090
pari_err_last 87497
pari_exit 0
pari_handle_SIGINT 0
pari_init 0
pari_init_blocks 374629
pari_init_defaults 1890
pari_init_errcatch 375032
pari_init_export 1890
pari_init_functions 1890
pari_init_opts 1890
pari_init_timer 1890
pari_mainstack_alloc 375149
pari_mainstack_free 375139
pari_mainstack_malloc 375149
pari_mainstack_mextend 496648
pari_mainstack_mfree 375139
pari_mainstack_mreset 496648
pari_mainstack_resize 445
pari_mainstack_setsize 496648
pari_mainstack_use 374617
pari_sig_init 3770
pari_sighandler 0
pari_sigint 0
pari_stackcheck_init 376449
pari_thread_alloc 372814
pari_thread_close 373370
pari_thread_free 372814
pari_thread_get_global 372814
pari_thread_init 374582
pari_thread_set_global 372548
pari_thread_start 372757
pari_thread_valloc 0
pari_version 7
pari_warn 942
paristack_alloc 1890
paristack_newrsize 452
paristack_resize 0
paristack_setsize 0
parivstack_reset 121499
parivstack_resize 0
pop_entree_block 390088
rndus 221580
setalldebug 1918
setdebug 127
setdebugvar 372547
shiftaddress 3097145587
shiftaddress_canon 76
taille0 4035104832
taille0_canon 84
timer 0
timer2 0
timer_aux 221580
timer_delay 111697
timer_get 1896
timer_printf 0
timer_start 358090
timer_vprintf 0
timetoi 0
traverseheap 84
traverseheap_r 13412
type_dim 7308
unexportall 6
vec_gunclone_deep 134582681
walltimer_delay 107987
walltimer_get 0
walltimer_start 253285

Generated by: LCOV version 1.16