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:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

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 - basemath - rootpol.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30146-7dee4152cd) Lines: 1467 1530 95.9 % Date: 2025-04-19 09:18:32 Functions: 116 119 97.5 % Legend: Lines: hit not hit

Function Name	Hit count
FFT	56
FFT_i	98
FFTinv	56
QX_complex_roots	289485
RgX_gtofp_bit	7017121
RgX_normalize1	35628
X2XP1	5201026
ZX_Uspensky	1059366
ZX_Uspensky_equal	28
ZX_Uspensky_equal_yes	14
ZX_Uspensky_no	21
ZX_deg1root	15211
ZX_graeffe	5383
ZX_realroots_irred	48309
ZX_rescale2prim	1935499
ZX_sturm	3735
ZX_sturm_i	120015
ZX_sturm_irred	116280
ZX_sturmpart	876823
ZX_to_ZiX	16455150
ZiX_sqr	98964472
_gen_nored	11121162
_gen_one	14368863
_gen_zero	323616
_intervalcmp	0
_mp_add	24575751
_mp_cmul	34599563
_mp_mul	4360564
_mp_sqr	6273215
_mp_sub	0
_sqrtnr	22645
a_posteriori_errors	530122
abs_update	7999367
abs_update_r	777843
all_roots	529068
append_clone	1601480
bkeval_single_power	5194991
check_ab	927436
checkbound	1852002
checkvalidpol	266682
clean_roots	529122
cleanroots	231644
cmp_complex_appr	2226049
conformal_basecase	1403336
conformal_mapping	467740
conformal_pol	1403454
dblexp	6544497
dbllog2	300174311
dft	501933
dual_modulus	1011600
eval_rel_pol	13126117
fft	14143372
fft2	7462
findpower	40931973
fix_roots	530121
fix_roots1	393853
fujiwara_bound	2005581
fujiwara_bound_real	1149462
graeffe	49473382
homothetie	1608540
homothetie2n	9948419
homothetie_gauss	36476177
ind_maxlog2	901859
initdft	995479
isexactpol	239634
isexactscalar	931280
isreal	961283
isvalidcoeff	1226651
logmax_modulus	4448198
logmin_modulus	1614058
logmodulus	606031
logpre_modulus	606027
logradius	493538
lower_bound	40931242
mydbllog2i	224228103
mydbllog2r	55920542
mydbllogr	9540254
mygprec	63632986
mygprec_absolute	4294085
mygprec_special	530127
mygprecrc	214799779
mygprecrc_special	2158970
myshiftic	135726963
myshiftrc	35478158
newton_polygon	5500643
optimize_split	493547
parameters	493546
pol_to_gaussint	17574322
polgraeffe	14
polmod_to_embed	84
polrootsbound	27041
polrootsbound_i	27034
polsolve	165662
quicktofp	6444867
realroots	50613
refine_F	501930
refine_H	2458806
root_error	1896457
roots	8018
roots_aux	239662
roots_com	239634
rootsdeg0	42
scalepol	4286984
scalepol2n	0
sol_ok	3350
solve_exact_pol	231040
split_0	493870
split_0_1	468064
split_0_2	468064
split_1	467739
split_2	493544
split_complete	1517842
split_fromU	493547
split_pols	165663
splitcauchy	165666
splitpoleval	5194823
tocomplex	1199217
update_radius	493541
usp	936884

Generated by: LCOV version 1.16